Upload folder using huggingface_hub

.env

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+CDS_API_KEY="be996a06-0af8-4b7e-bb36-f2ce09efd774"
+# url: https://cds.climate.copernicus.eu/api
+# key: be996a06-0af8-4b7e-bb36-f2ce09efd774

.gitattributes

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+datasets/Risle_Eure_watershed/Risle_Eure_Watershed.gpkg filter=lfs diff=lfs merge=lfs -text
+datasets/River[[:space:]]Images/Carte-de-la_Seine-390x305.png filter=lfs diff=lfs merge=lfs -text
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+plots/ades/groundwater_levels.png filter=lfs diff=lfs merge=lfs -text
+plots/graph/La_Eure.png filter=lfs diff=lfs merge=lfs -text
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CLAUDE.md

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+### Project deliverables → instructions/project.md
+
+### CURRENT STATUS
+
+**Phase 1 - Data Fusion & Graph Construction: ✅ COMPLETE**
+
+- ✅ Data downloads (Hub'Eau hydrometric, ERA5 meteorological, elevations)
+- ✅ Data loaders (hydrometric.py, safran.py) - aligned with actual API structures
+- ✅ Fusion pipeline (fusion_engine.py) - merges Hub'Eau + ERA5
+- ✅ Graph construction (graph_from_fused.py) - PyTorch Geometric compatible
+- ✅ Graph visualization (visualize.py) - 7 plot types
+
+**Working Pipeline:**
+```
+Hub'Eau (53K obs) + ERA5 (10K obs) → Fusion → Graphs → Visualization → Ready for GNN
+```
+
+**Datasets:**
+- Hub'Eau: 101,218 observations, 14 stations (1969-2026)
+- ERA5: Sample data (Jan 2020), full download ready (1960-2026, 67 years)
+- Station elevations: 27 stations from EU-DEM
+- ADES groundwater: 113 wells, 272K measurements
+- IDPR KARST indicators: 27 stations
+
+**Next:** GNN model training or full ERA5 download
+
+### INSTRUCTIONS
+- Role: Elite ML engineer, efficient, direct, best practices
+- Focus: Graph construction for PyTorch Geometric compatible with spatial-temporal data
+- Datasets: Located in `datasets/`
+- Code: All implementation in `src/`

README.md

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+# La Eure / La Risle Hydrometric GNN
+
+A physics-informed graph neural network that predicts streamflow (discharge,
+water level) at gauged and ungauged points along two Normandy rivers, La Eure
+and La Risle, treated as two separate surface-hydrology graphs with
+station-level covariates pulled from half a dozen independent data sources.
+
+```mermaid
+flowchart LR
+    hubeau["Hub'Eau<br/>discharge · water level<br/>catchment area"]
+    ades["ADES<br/>groundwater levels"]
+    era5["Copernicus ERA5<br/>climate reanalysis"]
+    otd["Open Topo Data<br/>station elevation"]
+    brgm["BRGM<br/>IDPR"]
+    bdtopo["IGN BD TOPO<br/>river centerline geometry"]
+
+    hubeau --> loaders
+    ades --> loaders
+    era5 --> loaders
+    otd --> loaders
+    brgm --> loaders
+    bdtopo --> loaders
+
+    loaders["src/data/loaders/"] --> nf["node_features.py<br/>one row per station<br/>inputs kept separate from targets"]
+    loaders --> bg["build_graph.py<br/>surface edges, ordered by<br/>real river course"]
+
+    nf --> pyg
+    bg --> pyg["build_pyg_graphs_per_basin"]
+
+    pyg --> eure["La Eure graph"]
+    pyg --> risle["La Risle graph"]
+
+    eure --> app["src/app.py<br/>Streamlit explorer"]
+    risle --> app
+    eure --> testsuite["test_build_graph.py<br/>validation"]
+    risle --> testsuite
+```
+
+---
+
+## 1. Repository layout
+
+```
+PoC_v1/
+├── scripts/                     # one-off download / extraction scripts
+│   ├── download_hubeau.py           # discharge + water level, Hub'Eau API v2
+│   ├── download_elevation.py        # point elevations, Open Topo Data
+│   ├── download_era5_sample.py      # ERA5 sanity-check pull (Jan 2020 only)
+│   ├── download_era5_full.py        # ERA5 1960–2026, split instant/accum vars
+│   ├── extract_era5.py              # unzips CDS API's zipped NetCDF output
+│   ├── download_catchment_area.py   # Hub'Eau referentiel/sites -> surface_bv
+│   ├── download_bdtopo_hydro.py     # IGN WFS -> tronçons, surfaces, catchments
+│   ├── analyze_bdtopo_hydro.py      # centerline export + karst check
+│   ├── run_bdtopo_checks.py         # karst + catchment cross-check, one shot
+│   └── cross_check_catchments.py    # spatial join: station -> containing polygon
+│
+├── src/
+│   ├── app.py                       # Streamlit river explorer (main UI)
+│   ├── generate_plots.py            # batch plot generation across all loaders
+│   ├── test_build_graph.py          # graph-construction test/validation suite
+│   ├── extract_river_centerline.py  # digitizes a traced map image into a centerline
+│   │
+│   ├── data/
+│   │   ├── loaders/
+│   │   │   ├── base.py                  # BaseDataLoader — shared load()/get_metadata()
+│   │   │   ├── hydrometric.py           # discharge & water level (Hub'Eau)
+│   │   │   ├── ades.py                  # groundwater levels (ADES)
+│   │   │   ├── safran.py                # ERA5 reanalysis, interpolated to stations
+│   │   │   ├── idpr.py                  # infiltration/runoff tendency (BRGM)
+│   │   │   ├── catchment.py             # per-station catchment area (Hub'Eau)
+│   │   │   ├── bdtopo_hydro.py          # IGN BD TOPO hydrography (GeoJSON)
+│   │   │   ├── shapefile.py             # watershed boundary polygon
+│   │   │   └── station_elevations.py    # station coordinates + elevation
+│   │   │
+│   │   ├── river_graph.py           # basin assignment, elevation ordering, edges
+│   │   ├── river_line.py            # straight-line interpolation between gauges
+│   │   └── river_centerline.py      # real-centerline interpolation + gauge snapping
+│   │
+│   └── graph/
+│       ├── build_graph.py           # surface edges + PyTorch Geometric conversion
+│       └── node_features.py         # pulls every loader into one feature table
+│
+├── datasets/                    # not checked in; populated by the scripts above
+│   ├── station_list.csv             # raw station roster (X, Y, names, INSEE, etc.)
+│   ├── station_elevations.csv       # station_code, lat, lon, elevation_m
+│   ├── idpr.csv
+│   ├── catchment_area.csv
+│   ├── ades/
+│   ├── hydrometric/
+│   ├── safran/
+│   ├── bdtopo_hydro/
+│   └── centerlines/
+```
+
+`scripts/` talks to the outside world (APIs, WFS);
+`src/` doesn't — nothing under `src/` makes a network call, and a script
+under `src/` that wants one is a bug. Most of `src/data/loaders/` predates
+the graph work — general-purpose readers/plotters for each dataset, with
+`node_features.py` stitching them together afterward rather than the other
+way around.
+
+---
+
+## 2. The graph
+
+This is the part everything else in the repo exists to feed. Two graphs, one
+per river — `H4xx…` stations feed the La Eure graph (196 km of real BD TOPO
+course), `H6xx…` feed La Risle (150 km) — built with no edge between them,
+because there's no surface connection between the two basins to model.
+
+![La Eure and its ADES wells, real BD TOPO course, elevation-colored gauges](docs/images/eure_overview.png)
+
+![La Risle, same view — note the tight cluster of gauges around the karst bétoire stretch](docs/images/risle_full.png)
+
+### 2.1 Nodes
+
+A node is one hydrometric station. The full feature set, as of the last
+`test_build_graph.py` run against real data, is 16 columns wide across all 27
+stations combined (15 per basin, once `basin_id` is dropped — see §2.3):
+
+| Feature | Source | What it is |
+|---|---|---|
+| `latitude`, `longitude` | `station_elevations.csv` | station coordinates |
+| `elevation_m` | Open Topo Data (`scripts/download_elevation.py`) | point elevation at the station |
+| `idpr_value` | BRGM IDPR | infiltration-vs-runoff tendency; direct ID join, not interpolated, for this dataset |
+| `avg_groundwater_level_m`, `avg_groundwater_depth_m` | ADES, radius-averaged | nearest-well groundwater condition |
+| `n_nearby_wells` | ADES | how many wells contributed to the average above — worth checking before trusting the groundwater value, since some stations have zero |
+| `climate_temp_C`, `climate_wind_speed_ms`, `climate_solar_Wm2`, `climate_precip_mm`, `climate_evap_mm`, `climate_snow_mm`, `climate_runoff_mm` | ERA5, interpolated to the station point | mean/sum over the record, by variable |
+| `avg_groundwater_level_m__was_missing`, `avg_groundwater_depth_m__was_missing`, (and similarly for any other feature with real gaps) | auto-generated | 1 if that station had no data for the column before mean-filling, 0 otherwise |
+
+`basin_id` is also computed but excluded from each per-basin graph's own
+feature set, since it's constant there and would just be a zero-variance
+column sitting in `x` for no reason.
+
+**Targets are not features.** `target_discharge_m3s_mean/std/count` and
+`target_waterlevel_mm_mean/std/count` exist on the enriched table but never
+enter `x` — they're pulled out into `data.y` separately. A model that could
+see these as inputs would be reading the answer off the label, not learning
+anything.
+
+**The missingness flags aren't decorative.** A station with zero nearby wells
+gets its groundwater value silently filled with the basin mean — without the
+flag, that looks identical to a station whose real groundwater level happens
+to be close to average. Given how unevenly some of these datasets cover the
+two basins (the Eure's southern reach has essentially no ADES wells within
+range at all), pretending "filled with the mean" and "actually near the mean"
+are the same thing would be a real information loss, not just tidiness.
+
+### 2.2 Edges
+
+An edge is "these two gauges are consecutive along the river," in the
+direction water actually flows — upstream to downstream. Three attributes per
+edge:
+
+| Feature | Meaning |
+|---|---|
+| `distance_km` | along-river distance between the two stations |
+| `elevation_drop_m` | elevation difference, upstream minus downstream (should be positive; negative would flag a real problem) |
+| `verified_continuous` | `False` for any edge deliberately flagged via `known_losing_reaches` |
+
+That last one exists because of a specific, real finding: two stations on La
+Risle are named *"[amont bétoire]"* and *"[aval bétoire]"* in Hub'Eau's own
+data — *bétoire* being the Normandy term for a karst swallow-hole, where a
+river can vanish underground and resurface downstream. Three consecutive
+edges spanning that stretch (`H605641101 → H605022010 → H605641401 →
+H605641201`) are flagged `verified_continuous=False` rather than the graph
+silently assuming water flows continuously through a reach that might not
+carry it at the surface at all. An edge existing in this graph means "these
+stations are sequential along the mapped course," not "surface flow between
+them is guaranteed."
+
+Ordering within a basin comes from the station's position along the real
+digitized river course where one's available (both basins now have real BD
+TOPO-derived centerlines — see §3.8), falling back to elevation or latitude
+otherwise. Every edge is built between *consecutive* stations in that order,
+which means each basin is currently a single chain, not a branching network.
+Tributaries aren't represented. That's the single biggest structural
+simplification in the graph as it stands — see §6.
+
+![La Risle, position at 50% along its 150 km real course, reading elevation and estimated groundwater level](docs/images/risle_detail.png)
+
+### 2.3 Two graphs, not one
+
+`build_pyg_graphs_per_basin()` returns `{0: eure_graph, 1: risle_graph}`,
+each with its own local `0..n-1` node indexing, rather than one merged `Data`
+object with two disconnected components. La Eure and La Risle are distinct
+hydrographic systems with nothing connecting them at the surface, and
+PyTorch Geometric's own batching (`Batch.from_data_list`) expects a list of
+separate small graphs — building two graphs from the start matches that
+convention directly.
+
+### 2.4 What actually goes into `x`
+
+`build_pyg_graph()` auto-detects feature columns from whatever table it's
+given, so it works whether that's the plain 4-column base table or the fully
+enriched one. Every column gets z-scored (mean 0, unit variance — verified in
+`test_build_graph.py`, including a check that this used the same `ddof=1`
+convention as the pandas `.std()` call that actually does the standardizing,
+since numpy's default `ddof=0` gives a spuriously "wrong-looking" answer for
+small station counts that isn't actually a bug). Missingness flags, described
+above, get appended after standardization so they stay honest 0/1 values
+rather than being z-scored into something less interpretable.
+
+### 2.5 What it looks like
+
+The Streamlit explorer (`src/app.py`) renders both graphs directly — real
+course geometry, gauges colored by elevation, ADES wells layered underneath
+for context. Clicking anywhere on the line resolves to the nearest gauge and
+pulls up its actual discharge/water-level/rating-curve plots:
+
+![Clicking along La Risle resolves to the nearest gauge (H605022010, 1.7 km away) and shows its real water level record back to 1972](docs/images/station_timeseries.png)
+
+---
+
+## 3. Datasets
+
+Every dataset here has its own quirks, and in a couple of cases the quirks
+materially affect what the data means.
+
+### 3.1 Station roster (`station_list.csv`, `station_elevations.csv`)
+
+27 stations across the two basins, split roughly by Hub'Eau code prefix
+(`H4xx…` for La Eure, `H6xx…` for La Risle — this is a heuristic based on
+observed codes, not a documented rule, so it's worth re-checking if new
+stations show up outside that pattern). Elevation comes from Open Topo Data's
+`eudem25m` endpoint (`scripts/download_elevation.py`), queried per station
+coordinate — it's a point lookup, not a raster, so there's no slope or
+catchment information hiding in it.
+
+The row order in `station_list.csv` does **not** follow the river's course —
+verified directly, it jumps around in both latitude and elevation. Anything
+that needs upstream/downstream ordering has to derive it from elevation,
+latitude, or real centerline position; never from file order.
+
+Not every station in this list is actively gauged. Cross-referencing station
+names against the hydrometric data turned up three categories worth knowing
+about:
+
+- **Manual "observateur" stations** — read by a person, not telemetered, so
+  there's no digital time series to have. Four of these in the current roster.
+- **Partner-network ("SEBV") stations** — operated outside the standard Hub'Eau
+  telemetry network, likely need a different data source entirely if you want
+  their readings. `H431021010` is one of these.
+- Everything else with no data is unexplained from the name alone and worth a
+  direct check on Hub'Eau's site before assuming it's just a gap.
+
+In total, **14 of the 27 stations have no discharge or water-level records at
+all** in the current Hub'Eau export. That's not a bug in the loader — it's
+confirmed against the raw files, not just the merged table.
+
+### 3.2 Hydrometric data (`hydrometric/`, via `scripts/download_hubeau.py`)
+
+Discharge and water level from Hub'Eau's `obs_elab` endpoint. One thing that
+trips up a naive read: **both files contain a mix of `grandeur_hydro_elab`
+codes**, not just the variable implied by the filename. `discharge_observations.csv`
+has `HIXnJ`/`HIXM` (water-level codes) sitting right alongside `QmnJ`
+(discharge) rows for the same stations — `HydrometricLoader` filters each file
+down to its intended `grandeur` code explicitly (`QmnJ` from the discharge
+file, `HIXnJ` from the water-level file) rather than trusting the filename.
+
+Only 8 of the 27 stations have any `QmnJ` (daily mean discharge) rows at all.
+Several others report water level only. This isn't evenly distributed and
+matters a lot for anything downstream that assumes "gauged" means "has both
+variables" — it usually doesn't.
+
+### 3.3 Groundwater (`ades/`)
+
+ADES piezometer data: 113 wells in the watershed extract, 102 of them with
+actual level readings, going back as far as 1967 for some wells and to
+2026-07-05 for the most recent reading at time of writing. `ADESLoader.load()`
+merges the levels file against the stations file on `code_bss` and renames
+`x`/`y` to `lon`/`lat` — those columns are already in degrees in this dataset,
+not a projected CRS, so no reprojection happens or is needed.
+
+Groundwater is used as a **station-level input covariate** (radius-averaged via
+`aggregate_to_stations`), not as a graph edge. Well proximity alone isn't
+sufficient grounds for a subsurface/karst connectivity edge between the two
+basins — two wells being close together doesn't mean they're hydraulically
+connected. That would need either correlated well hydrographs over time or a
+shared BDLISA aquifer-unit code (the `groundwater_stations.csv` file has a
+`codes_bdlisa` column available for exactly this kind of check).
+
+Well coverage is not uniform across the two basins. The Eure's southern reach
+(south of roughly 48.68°N, toward Chartres) has essentially zero wells within
+range in this extract — any groundwater estimate south of there will come back
+empty, and that's a property of the source data, not a bug in the interpolation.
+
+### 3.4 Climate (`safran/`, via `download_era5_sample.py` / `download_era5_full.py`)
+
+Despite the `safran` naming throughout this codebase (a holdover from an
+earlier plan to use Météo-France's SAFRAN reanalysis), the actual data is ERA5
+from Copernicus's Climate Data Store, pulled via `cdsapi`. ERA5 splits
+instantaneous variables (temperature, wind) from accumulated ones
+(precipitation, evaporation, radiation, snowfall, runoff) at the API level —
+`download_era5_full.py` downloads each set separately per year and merges them,
+because the CDS API rejects mixed requests. The full pull spans 1960–2026 and
+is genuinely slow (a `time.sleep` and per-year retry loop is in there for a
+reason).
+
+`SAFRANLoader` interpolates the ERA5 grid to each station's coordinate
+(nearest or linear, configurable) rather than requiring stations to sit
+exactly on a grid cell — this is standard practice for reanalysis data at
+0.25° resolution, not an approximation specific to this project.
+
+### 3.5 IDPR (`idpr.csv`)
+
+BRGM's *Indice de Développement et de Persistance des Réseaux* — an
+infiltration-vs-runoff tendency index, and the closest thing this project has
+to a real soil/drainage covariate. The actual file used here is already
+one row per station (`station_id` matching `station_code` exactly, verified
+1:1 against all 27 stations, no duplicates, no nulls), not a raw spatial point
+cloud. `node_features.py` checks for this and does a direct ID join when
+possible rather than nearest-neighbor search — nearest-neighbor is only the
+fallback path for a generic IDPR export that doesn't come pre-matched to
+stations.
+
+There is no soil texture, permeability, or hydraulic conductivity dataset in
+this project. IDPR is a tendency index, not a texture measurement — worth
+keeping that distinction in mind if it ever gets described as "soil data" in a
+writeup.
+
+### 3.6 Catchment area (`catchment_area.csv`, via `scripts/download_catchment_area.py`)
+
+Hub'Eau publishes catchment (drainage basin) area on the **site** referentiel,
+not the station referentiel — `surface_bv` on `hydrometrie/referentiel/sites`,
+in km². Since one site can have several stations, the download script does two
+passes: station → `code_site`, then `code_site` → `surface_bv`, and joins them
+back. 16 of 27 stations have a value; Hub'Eau simply doesn't publish this field
+for every site, and the missing ones correlate with the observer/SEBV stations
+from §3.1 but aren't identical to that set.
+
+This number is **cumulative** — the total catchment area draining to that
+point, all the way to the source. That distinction matters once you bring BD
+TOPO into the picture (§3.7), because BD TOPO's catchment polygons are the
+opposite: incremental, reach-by-reach areas. Comparing the two directly without
+accounting for that gives area ratios that look like measurement error but
+aren't — a spatial join between the 27 stations and the 135 BD TOPO polygons
+gave ratios from about 0.015 near the river mouth up to 0.67 near the source,
+which is exactly the pattern you'd expect from cumulative-vs-incremental, not
+a data quality problem.
+
+### 3.7 BD TOPO hydrography (`bdtopo_hydro/`, via `scripts/download_bdtopo_hydro.py`)
+
+IGN's BD TOPO / BD TOPAGE hydrographic network, pulled from the Geoplateforme
+WFS (`https://data.geopf.fr/wfs`) rather than downloaded as a national bulk
+file — the download script queries a bounding box around the two basins
+instead. Three layers, all scoped to that bbox:
+
+- `troncon_hydrographique.geojson` — river centerline reaches. 30,045 features
+  in the current pull, which sounds like a lot for two rivers because it
+  includes every stream, ditch, and canal in the box, not just the Eure and
+  Risle.
+- `surface_hydrographique.geojson` — hydrographic surfaces, including a
+  `Nature` attribute that's supposed to flag karst-influenced reaches. IGN
+  documents this attribute as **provisional and incomplete** — filled in with
+  a limited, sometimes-default set of values pending refinement by the water
+  agencies. A negative karst search here is not strong evidence of anything;
+  it may just mean that stretch hasn't been annotated yet.
+- `bassin_versant_topographique.geojson` — catchment polygons, incremental
+  (see §3.6). 135 polygons in the current bbox.
+
+**WFS axis order**: when a `BBOX` parameter's CRS is given via the URN form
+(`urn:ogc:def:crs:EPSG::4326`), the OGC spec requires latitude, longitude axis
+order — the opposite of the lon,lat order most GIS tools use by default.
+Getting this backwards doesn't raise an error; it silently matches zero real
+features, which looks identical to "no data in this area." `download_bdtopo_hydro.py`
+tries lon,lat first and automatically retries with the axes swapped if that
+comes back empty — for this project's bounding box, lat,lon is the order that
+returns real data.
+
+**Z-coordinate in tronçon geometry**: `troncon_hydrographique` geometries
+carry a third coordinate — real altitude at every vertex — not just lon/lat.
+Code handling this data needs to account for 3D coordinates explicitly (e.g.
+slicing to the first two values before building a 2-column DataFrame from
+`geometry.coords`). This altitude data doubles as a genuinely useful
+fine-grained elevation profile along the river, denser than anything
+derivable from the 27 gauge points alone (`BDTopoHydroLoader.get_elevation_profile`).
+
+**The bétoire finding**: two stations in the roster are explicitly named
+*"[amont bétoire]"* and *"[aval bétoire]"* in Hub'Eau's own site names —
+*bétoire* being the Normandy dialect term for a karst swallow-hole. That's
+independent, deliberate naming from the data provider, not a guess. It's the
+strongest evidence in this project for a real losing reach on La Risle around
+Grosley-sur-Risle/Ajou (`H605641101` → `H605641201`), even though the BD TOPO
+karst layer doesn't currently confirm it (see the provisional-attribute note
+above). `build_surface_edges`'s `known_losing_reaches` parameter exists
+specifically for this — the current recommendation is to flag all three edges
+spanning that stretch as `verified_continuous=False`, not just guess at one.
+
+Also worth knowing: filtering the 30,045 tronçons down to a named river and
+building a graph from their endpoints does **not** give one connected line.
+For "Risle," 1,195 name-matched tronçons split into 132 disconnected
+components; the extraction keeps only the largest. That's a real topology gap
+in the source data (tile boundaries, tributaries sharing a base name without
+literally connecting), not a bug in the graph-walking code.
+
+### 3.8 Centerline generation
+
+`centerlines/eure_centerline.csv` and `centerlines/risle_centerline.csv` — the
+geometry `build_surface_edges` orders stations against — are generated by
+`scripts/analyze_bdtopo_hydro.py --export-centerline`. It filters
+`troncon_hydrographique.geojson` (§3.7) down to the named river, builds a
+graph from the tronçon endpoints, and walks the longest path through it via
+double-BFS shortest-path to get one continuous, correctly-ordered sequence of
+real coordinates. This is the accurate method: real BD TOPO vector geometry
+snaps stations to within 0.05 km on average.
+
+`scripts/extract_river_centerline.py` is a separate, standalone technique for
+deriving a centerline directly from a traced map image, for a river or region
+without BD TOPO coverage: color-threshold the image to isolate a traced route,
+skeletonize it, walk the end-to-end path the same double-BFS way, then
+georeference by fitting a least-squares affine transform from a handful of
+manually-read reference-point pixel positions to their known coordinates.
+This produces a reliable *shape*, but the **absolute position** is only as
+good as the georeferencing step — residuals at the reference points run to a
+few kilometers with a handful of manually-read points, giving roughly a 0.88
+km average snap distance rather than 0.05 km. It's the fallback when a real
+vector source isn't available, not the method used for the current
+`centerlines/` files.
+
 ---
-title: River Network
-emoji: 📚
-colorFrom: pink
-colorTo: green
-sdk: gradio
-sdk_version: 6.24.0
-python_version: '3.12'
-app_file: app.py
-pinned: false
+
+## 4. Applications
+
+Click-to-explore UI over the river network (`src/app.py`, Streamlit): pick a
+river, click (or slide) along its course, see interpolated elevation,
+estimated groundwater level, and — for whichever real gauge is nearest that
+point — water level, discharge, and rating-curve plots pulled directly from
+`HydrometricLoader`'s own plotting methods rather than reimplemented.
+
+Click support uses Streamlit's native chart-selection
+(`st.plotly_chart(..., on_select="rerun")`, requires `plotly` alongside
+`streamlit`), not a third-party click-handling package. The click handler and
+the position slider share a single source of truth by design: Streamlit only
+honors a slider's `value=` argument the first time that widget is created, and
+on every later rerun returns whatever's stored under that widget's own
+session-state key — so the click handler writes directly into the slider's
+own key before it's instantiated, rather than a separate key, keeping the two
+controls in sync. It also de-duplicates incoming click events, since
+Streamlit's chart-selection state persists across reruns caused by *other*
+widgets and would otherwise re-fire on every unrelated interaction, not just
+the click that caused it.
+
 ---
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+## 5. Testing (`src/test_build_graph.py`)
+
+Not a unit test suite in the pytest sense — a single script that runs the full
+`node_features → build_surface_edges → build_pyg_graph(s)` pipeline against
+real data under `--data-root` and checks the result is actually sane: no
+NaN/Inf in the feature tensor, no accidental cross-basin edges, targets
+genuinely excluded from the model input, edge indices within bounds,
+bidirectional edge count exactly double the directed count, per-basin node
+counts summing to the combined total, standardized features actually landing
+near zero mean / unit variance, and the `known_losing_reaches` flag actually
+taking effect on the edge it's supposed to.
+
+It also prints mean/max `snap_distance_km` per basin against whatever
+centerline is currently in `centerlines/` — this is the number that would
+catch "one basin got a real BD TOPO centerline and the other is still on the
+old digitized approximation" without anyone having to notice by eye. As of the
+last run, that threshold is deliberately loose (2 km) so it won't hard-fail on
+a legitimately-imperfect-but-usable centerline; it's a reported number to
+watch, not yet an enforced standard. Worth tightening once both basins are on
+real geometry.
+
+Exits 0 on a clean pass, 1 otherwise, so it's usable as a pre-commit or CI
+gate if that's ever set up.
+
+---
+
+## 6. Known limitations and open questions
+
+- **Each basin is modeled as a single chain, not a branching network.** Tributaries
+  aren't represented. Fixing this means pulling BD TOPO's confluence-node
+  layer and reworking `build_surface_edges`'s core assumption, not a small
+  patch.
+- **The karst losing-reach flag is based on naming evidence, not a confirmed
+  BD TOPO classification.** The provisional state of the `Nature` attribute
+  means this may firm up (or not) as IGN's data matures — it's not something
+  this project can resolve unilaterally.
+- **Catchment area exists in two incompatible forms** (Hub'Eau cumulative vs.
+  BD TOPO incremental) and nothing currently derives a true independent
+  cumulative catchment from BD TOPO alone by summing incremental polygons
+  upstream of each gauge. Doable, not done.
+- **13 of 27 stations have some hydrometric data; 8 have discharge
+  specifically.** Any model trained on discharge as a target has a real,
+  uneven gauge-density problem to contend with, not just a "some nodes are
+  unlabeled" abstraction.
+- **No true soil or permeability dataset.** IDPR is a tendency index, useful
+  but not a substitute.
+- **The groundwater-well BDLISA aquifer-unit field is unused.** If a
+  subsurface connectivity edge is ever justified with real evidence rather
+  than proximity, this is the first place to look.
+
+---
+
+## 7. Running things
+
+Data acquisition (from repo root, in roughly dependency order):
+
+```bash
+python -m scripts.download_hubeau
+python -m scripts.download_elevation
+python -m scripts.download_era5_full        # slow; download_era5_sample.py first if just testing
+python -m scripts.extract_era5
+python -m scripts.download_catchment_area
+python -m scripts.download_bdtopo_hydro --check   # verify typeNames before the real pull
+python -m scripts.download_bdtopo_hydro
+```
+
+Validate the graph pipeline against whatever's actually in `datasets/`:
+
+```bash
+python -m src.test_build_graph --data-root datasets
+```
+
+Run the explorer:
+
+```bash
+streamlit run src/app.py -- --data-root datasets
+```

datasets/ADES/ADES_data_fetching.py

@@ -0,0 +1,158 @@
+import requests
+import pandas as pd
+import geopandas as gpd
+from shapely.geometry import Point
+from tqdm import tqdm
+
+# Departments intersecting the study area
+departments = ["27", "61", "76"]
+
+url = "https://hubeau.eaufrance.fr/api/v1/niveaux_nappes/stations"
+
+stations = []
+
+for dep in departments:
+
+    params = {
+        "code_departement": dep,
+        "size": 20000,
+        "format": "json"
+    }
+
+    r = requests.get(url, params=params)
+
+    if r.status_code == 200:
+        stations.extend(r.json()["data"])
+
+stations = pd.DataFrame(stations)
+
+print(f"{len(stations)} stations downloaded.")
+
+print(stations.columns)
+
+stations = gpd.GeoDataFrame(
+    stations.drop(columns="geometry", errors="ignore"),
+    geometry=gpd.points_from_xy(
+        stations["x"],
+        stations["y"]
+    ),
+    crs="EPSG:4326"
+)
+
+
+# Watershed Merging
+
+# Read shapefiles
+risle = gpd.read_file("data/Watershed_Risle.shp")
+eure = gpd.read_file("data/Watershed_Eure.shp")
+
+# Same CRS
+eure = eure.to_crs(risle.crs)
+
+# Combine
+watersheds = pd.concat([risle, eure], ignore_index=True)
+watersheds = gpd.GeoDataFrame(watersheds, crs=risle.crs)
+
+# Create one merged geometry
+watershed = gpd.GeoDataFrame(
+    geometry=[watersheds.unary_union],
+    crs=watersheds.crs
+)
+
+# Convert to station CRS
+watershed = watershed.to_crs("EPSG:2154")
+stations = stations.to_crs("EPSG:2154")
+
+print(stations.total_bounds)
+print(watershed.total_bounds)
+
+
+
+stations_clip = gpd.clip(stations, watershed)
+
+print(f"Total stations downloaded: {len(stations)}")
+print(f"Stations inside Risle + Eure watersheds: {len(stations_clip)}")
+
+watershed.to_file(
+    "output/shapefile/Risle_Eure_Watershed.gpkg",
+    driver="GPKG"
+)
+
+watershed.to_file(
+    "output/shapefile/Risle_Eure_Watershed.shp"
+)
+
+
+# Save station list 
+
+stations_clip.to_file(
+    "output/shapefile/groundwater_stations.gpkg",
+    driver="GPKG"
+)
+
+stations_clip.to_file(
+    "output/shapefile/groundwater_stations.shp"
+)
+
+stations_clip.drop(columns="geometry").to_csv(
+    "output/csv/groundwater_stations.csv",
+    index=False
+)
+
+# Download ground water levels
+#levels_all = []
+
+#for code in tqdm(stations_clip["code_bss"]):
+#
+#    url = "https://hubeau.eaufrance.fr/api/v1/niveaux_nappes/chroniques"
+#
+#    params = {
+#        "code_bss": code,
+#        "format": "json",
+#        "size": 20000
+#    }
+#
+#    r = requests.get(url, params=params)
+#
+#    if r.status_code == 200:
+#        data = r.json().get("data", [])
+#        if data:
+#            df = pd.DataFrame(data)
+#            df["code_bss"] = code
+#            levels_all.append(df)
+
+## Combine
+#levels_df = pd.concat(levels_all, ignore_index=True)
+
+## Save
+#levels_df.to_csv("output/csv/groundwater_levels_watershed.csv", index=False)
+
+#print("Groundwater levels downloaded:", len(levels_df))
+
+# Download groundwater quality
+quality_all = []
+
+for code in tqdm(stations_clip["code_bss"]):
+
+    url = "https://hubeau.eaufrance.fr/api/v1/qualite_nappes/analyses"
+
+    params = {
+        "bss_id": code,
+        "format": "json",
+        "size": 20000
+    }
+
+    r = requests.get(url, params=params)
+
+    if r.status_code == 200:
+        data = r.json().get("data", [])
+        if data:
+            df = pd.DataFrame(data)
+            df["code_bss"] = code
+            quality_all.append(df)
+
+quality_df = pd.concat(quality_all, ignore_index=True)
+
+quality_df.to_csv("output/csv/groundwater_quality_watershed.csv", index=False)
+
+print("Groundwater quality records:", len(quality_df))

datasets/ADES/groundwater_levels_watershed.csv

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:87e2a5e7a87676bd7caa4d80ecd8c88849c2192a9444319c9ddf64d8746d891e
+size 74555439

datasets/ADES/groundwater_stations.csv

@@ -0,0 +1,114 @@
+code_bss,urn_bss,date_debut_mesure,date_fin_mesure,code_commune_insee,nom_commune,x,y,codes_bdlisa,urns_bdlisa,bss_id,altitude_station,nb_mesures_piezo,code_departement,nom_departement,libelle_pe,profondeur_investigation,codes_masse_eau_edl,noms_masse_eau_edl,urns_masse_eau_edl,date_maj
+02532X0012/F1,http://services.ades.eaufrance.fr/pointeau/02532X0012/F1,1988-01-18,2000-01-13,61242,Le Mage,0.830353365,48.537604015,,[],BSS000TTRG,231.0,137,61,Orne,,38.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+02532X0007/F,http://services.ades.eaufrance.fr/pointeau/02532X0007/F,1987-01-26,1987-09-11,61230,Longny les Villages,0.807853497,48.547016865,,[],BSS000TTRB,235.0,9,61,Orne,,55.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+BSS002PTKW/SR1,http://services.ades.eaufrance.fr/pointeau/BSS002PTKW/SR1,2016-04-28,2026-01-05,61230,Longny les Villages,0.852492411,48.572531639,['123AC01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/123AC01.pdf'],BSS002PTKW,266.0,3538,61,Orne,,42.0,,,[],Wed Dec 11 22:13:50 CET 2024
+02155X1040/F,http://services.ades.eaufrance.fr/pointeau/02155X1040/F,1999-03-25,2026-01-05,61429,Charencey,0.72928814,48.624381056,['123AC01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/123AC01.pdf'],BSS000RFVG,230.0,9412,61,Orne,La bourgoiserie,67.0,['GG081'],['Sables et gres du Cenomanien sarthois libres'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/GG081'],Wed Dec 04 14:26:33 CET 2024
+02142X0005/S1,http://services.ades.eaufrance.fr/pointeau/02142X0005/S1,1974-01-31,1976-03-17,61389,Sainte-Gauburge-Sainte-Colombe,0.452987737,48.710522474,,[],BSS000RERG,250.0,21,61,Orne,,21.5,,,[],Fri Jun 28 07:31:38 CEST 2024
+01785X0011/S1,http://services.ades.eaufrance.fr/pointeau/01785X0011/S1,1974-01-30,1975-12-23,61385,Saint-Evroult-de-Montfort,0.366094021,48.811152891,,[],BSS000MRJL,285.0,19,61,Orne,,19.35,,,[],Fri Jun 28 07:31:38 CEST 2024
+01788X0049/PZ5,http://services.ades.eaufrance.fr/pointeau/01788X0049/PZ5,2013-11-28,2016-08-18,27502,Rugles,0.707840313,48.808532028,,[],BSS000MRQG,181.94,995,27,Eure,,15.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01795X0011/S1,http://services.ades.eaufrance.fr/pointeau/01795X0011/S1,1972-11-09,2023-09-21,27069,Bois-Arnault,0.747209827,48.824862061,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000MRYC,205.0,6031,27,Eure,Puits Les Siaulles (Bois-Arnault) - 27,32.0,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Tue Sep 23 19:34:49 CEST 2025
+01796X0020/P,http://services.ades.eaufrance.fr/pointeau/01796X0020/P,2022-07-27,2026-07-04,27054,Bémécourt,0.813455882,48.829452768,,[],BSS000MRZZ,185.0,1439,27,Eure,,23.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01791X0002/P,http://services.ades.eaufrance.fr/pointeau/01791X0002/P,2013-11-28,2016-08-18,27427,Neaufles-Auvergny,0.726099,48.874798,,[],BSS000MRRG,174.0,995,27,Eure,,30.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01784X0024/P,http://services.ades.eaufrance.fr/pointeau/01784X0024/P,2013-11-28,2016-08-18,27075,Bois-Normand-près-Lyre,0.695379051,48.898940517,,[],BSS000MRHF,198.0,956,27,Eure,,37.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01792X0010/P,http://services.ades.eaufrance.fr/pointeau/01792X0010/P,2013-11-28,2016-08-18,27565,Le Lesme,0.840012,48.912698,,[],BSS000MRTG,178.5,995,27,Eure,,28.85,,,[],Fri Jun 28 07:31:38 CEST 2024
+01784X0005/S1,http://services.ades.eaufrance.fr/pointeau/01784X0005/S1,1972-11-07,1981-12-21,27068,Bois-Anzeray,0.68803551,48.92077842,,[],BSS000MRGL,198.0,92,27,Eure,,36.6,,,[],Fri Jun 28 07:31:38 CEST 2024
+01792X0005/S1,http://services.ades.eaufrance.fr/pointeau/01792X0005/S1,1972-11-09,1984-11-29,27242,Le Fidelaire,0.83188,48.955478,,[],BSS000MRTB,168.0,133,27,Eure,,40.7,,,[],Fri Jun 28 07:31:38 CEST 2024
+01495X0013/P,http://services.ades.eaufrance.fr/pointeau/01495X0013/P,2013-11-28,2016-08-18,27049,Mesnil-en-Ouche,0.74118,48.970609,,[],BSS000LBPP,178.0,995,27,Eure,,33.3,,,[],Fri Jun 28 07:31:38 CEST 2024
+01495X0067/F1,http://services.ades.eaufrance.fr/pointeau/01495X0067/F1,2013-11-28,2017-07-11,27049,Mesnil-en-Ouche,0.774535905,48.973418753,,[],BSS000LBRL,129.69,1309,27,Eure,,32.27,,,[],Fri Jun 28 07:31:38 CEST 2024
+02144X0005/S1,http://services.ades.eaufrance.fr/pointeau/02144X0005/S1,1974-01-31,2026-07-04,61456,Saint-Sulpice-sur-Risle,0.658047665,48.766362664,['123BW01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/123BW01.pdf'],BSS000REWL,230.0,10774,61,Orne,Puits du Château du Souchey (l'Aigle) - 61,29.8,['HG212'],['Craie du Lieuvin-Ouche - bassin versant de la Risle'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG212'],Fri Dec 06 23:13:34 CET 2024
+01788X0012/P,http://services.ades.eaufrance.fr/pointeau/01788X0012/P,1972-11-07,1984-11-29,27359,Juignettes,0.642436631,48.855171449,,[],BSS000MRNU,218.0,125,27,Eure,,17.35,,,[],Fri Jun 28 07:31:38 CEST 2024
+01487X0001/S1,http://services.ades.eaufrance.fr/pointeau/01487X0001/S1,1982-01-28,2026-07-03,27049,Mesnil-en-Ouche,0.585971387,48.963156874,['121AW30'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AW30.pdf'],BSS000LBFR,199.0,7845,27,Eure,Puits Château d'eau (la Roussière) - 27,29.0,['HG212'],['Craie du Lieuvin-Ouche - bassin versant de la Risle'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG212'],Mon Sep 23 20:25:44 CEST 2024
+01486X0013/P,http://services.ades.eaufrance.fr/pointeau/01486X0013/P,1972-11-07,1976-03-08,27514,Saint-Aubin-du-Thenney,0.489017767,49.021904842,,[],BSS000LBEK,182.0,36,27,Eure,,31.74,,,[],Fri Jun 28 07:31:38 CEST 2024
+01484X0002/P,http://services.ades.eaufrance.fr/pointeau/01484X0002/P,1972-11-07,1981-12-21,27523,Saint-Clair-d'Arcey,0.663997278,49.065071526,,[],BSS000LBAE,162.0,97,27,Eure,,63.27,,,[],Fri Jun 28 07:31:38 CEST 2024
+01482X0009/S1,http://services.ades.eaufrance.fr/pointeau/01482X0009/S1,1972-11-07,1984-11-29,27460,Plainville,0.511204226,49.08792668,,[],BSS000LAUD,170.0,135,27,Eure,,42.1,,,[],Fri Jun 28 07:31:38 CEST 2024
+01483X0011/S1,http://services.ades.eaufrance.fr/pointeau/01483X0011/S1,1972-11-07,1981-12-18,27056,Bernay,0.562260863,49.115443807,,[],BSS000LAWS,171.0,102,27,Eure,,40.14,,,[],Fri Jun 28 07:31:38 CEST 2024
+01227X0022/P,http://services.ades.eaufrance.fr/pointeau/01227X0022/P,2001-04-05,2026-07-04,27079,Boissy-Lamberville,0.57749099,49.163125496,['121AW30'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AW30.pdf'],BSS000JGKA,169.0,7997,27,Eure,Puits de Boissy Lamberville (Boissy-Lamberville) - 27,19.15,['HG212'],['Craie du Lieuvin-Ouche - bassin versant de la Risle'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG212'],Tue Aug 05 20:51:33 CEST 2025
+01227X0038/S22,http://services.ades.eaufrance.fr/pointeau/01227X0038/S22,1982-02-16,2023-09-06,27367,Lieurey,0.538445122,49.223631521,['123BW01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/123BW01.pdf'],BSS000JGKS,149.0,8138,27,Eure,Forage de Lieurey (Lieurey) - 27,101.0,['HG212'],['Craie du Lieuvin-Ouche - bassin versant de la Risle'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG212'],Tue Sep 23 19:41:29 CEST 2025
+01786X0001/S1,http://services.ades.eaufrance.fr/pointeau/01786X0001/S1,1974-01-31,2000-01-13,61167,La Ferté-en-Ouche,0.448642005,48.861125488,,[],BSS000MRKF,250.0,284,61,Orne,,32.55,,,[],Fri Jun 28 07:31:38 CEST 2024
+01482X0055/P,http://services.ades.eaufrance.fr/pointeau/01482X0055/P,2003-01-21,2026-05-19,27564,Saint-Mards-de-Fresne,0.465573501,49.077212428,['121AW01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AW01.pdf'],BSS000LAWB,182.5,8062,27,Eure,PUITS LE CHESNEY (SAINT-MARDS-DE-FRESNE) - 27,18.7,['HG212'],['Craie du Lieuvin-Ouche - bassin versant de la Risle'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG212'],Mon Dec 01 18:41:54 CET 2025
+00985X0040/S1,http://services.ades.eaufrance.fr/pointeau/00985X0040/S1,1971-01-19,2025-04-16,27561,Saint-Maclou,0.411508411,49.360505521,['123BW01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/123BW01.pdf'],BSS000GKSW,120.0,6595,27,Eure,Puits du Château (Saint-Maclou) - 27,39.8,['HG212'],['Craie du Lieuvin-Ouche - bassin versant de la Risle'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG212'],Tue Sep 24 20:10:22 CEST 2024
+00986X0069/S1,http://services.ades.eaufrance.fr/pointeau/00986X0069/S1,1971-01-26,1980-10-27,27655,Tourville-sur-Pont-Audemer,0.530532488,49.327504978,,[],BSS000GKXL,105.0,104,27,Eure,,69.35,,,[],Fri Jun 28 07:31:38 CEST 2024
+00987X0010/S1,http://services.ades.eaufrance.fr/pointeau/00987X0010/S1,1971-01-26,1976-03-08,27385,Manneville-sur-Risle,0.554346718,49.353961325,,[],BSS000GLBC,94.0,54,27,Eure,,95.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+00987X0009/S1,http://services.ades.eaufrance.fr/pointeau/00987X0009/S1,1971-01-26,2026-07-02,27263,Le Perrey,0.580959003,49.380233794,['121AW01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AW01.pdf'],BSS000GLBB,112.0,10006,27,Eure,Puits Château du Hamel (Fourmetot) - 27,67.5,['HG212'],['Craie du Lieuvin-Ouche - bassin versant de la Risle'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG212'],Mon Sep 23 22:50:13 CEST 2024
+02155X2001/P,http://services.ades.eaufrance.fr/pointeau/02155X2001/P,2013-03-21,2026-04-01,27155,Chennebrun,0.781516532,48.679507786,,[],BSS000RFVK,197.0,1310,27,Eure,,31.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+02152X0051/P,http://services.ades.eaufrance.fr/pointeau/02152X0051/P,2007-02-23,2026-07-03,27521,Saint-Christophe-sur-Avre,0.816238041,48.700275823,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000RFLV,198.0,6719,27,Eure,Puits Mairie (Saint-Christophe-sur-Avre) - 27,38.2,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Wed Sep 25 12:40:12 CEST 2024
+02152X0002/P,http://services.ades.eaufrance.fr/pointeau/02152X0002/P,2016-05-25,2026-04-01,27521,Saint-Christophe-sur-Avre,0.816264023,48.700335028,['121AS30'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS30.pdf'],BSS000RFJU,188.0,115,27,Eure,,26.3,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Fri Jun 28 07:31:38 CEST 2024
+02152X0031/P,http://services.ades.eaufrance.fr/pointeau/02152X0031/P,2015-07-24,2026-04-01,27610,Saint-Victor-sur-Avre,0.854449841,48.702517981,,[],BSS000RFKZ,200.0,124,27,Eure,,42.65,,,[],Fri Jun 28 07:31:38 CEST 2024
+02151X0030/S1,http://services.ades.eaufrance.fr/pointeau/02151X0030/S1,1982-02-02,2016-08-31,27038,Les Barils,0.802934996,48.725041118,,[],BSS000RFHT,202.0,714,27,Eure,,22.6,,,[],Fri Jun 28 07:31:38 CEST 2024
+02151X0006/P,http://services.ades.eaufrance.fr/pointeau/02151X0006/P,2013-11-06,2026-04-01,27108,Bourth,0.801471889,48.740388423,,[],BSS000RFGT,210.0,133,27,Eure,,21.9,,,[],Fri Jun 28 07:31:38 CEST 2024
+02151X0008/P,http://services.ades.eaufrance.fr/pointeau/02151X0008/P,2013-03-21,2026-04-01,27108,Bourth,0.796843045,48.755000708,,[],BSS000RFGV,208.0,928,27,Eure,,28.87,,,[],Fri Jun 28 07:31:38 CEST 2024
+02151X0031/MW1,http://services.ades.eaufrance.fr/pointeau/02151X0031/MW1,2013-11-06,2015-01-28,27108,Bourth,0.782124702,48.766917776,,[],BSS000RFHU,190.0,7,27,Eure,,,,,[],Fri Jun 28 07:31:38 CEST 2024
+02151X0032/MW2,http://services.ades.eaufrance.fr/pointeau/02151X0032/MW2,2013-11-06,2015-01-28,27108,Bourth,0.78503102,48.767504137,,[],BSS000RFHV,186.0,7,27,Eure,,,,,[],Fri Jun 28 07:31:38 CEST 2024
+02151X0033/MW3,http://services.ades.eaufrance.fr/pointeau/02151X0033/MW3,2013-11-06,2015-01-28,27108,Bourth,0.78543428,48.767662229,,[],BSS000RFHW,186.0,7,27,Eure,,,,,[],Fri Jun 28 07:31:38 CEST 2024
+02153X0046/P,http://services.ades.eaufrance.fr/pointeau/02153X0046/P,2015-10-01,2026-04-01,27679,Verneuil d'Avre et d'Iton,0.974506593,48.736421888,,[],BSS000RFPF,163.0,124,27,Eure,,,,,[],Fri Jun 28 07:31:38 CEST 2024
+02153X0055/PZ4,http://services.ades.eaufrance.fr/pointeau/02153X0055/PZ4,2013-09-05,2026-04-01,27036,Bâlines,0.970326001,48.743448699,,[],BSS000RFPQ,157.0,637,27,Eure,,50.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+02153X0023/S1,http://services.ades.eaufrance.fr/pointeau/02153X0023/S1,1985-04-23,2005-08-31,27036,Bâlines,0.967602875,48.753403654,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000RFNG,163.0,2851,27,Eure,,16.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+02154X0001/F,http://services.ades.eaufrance.fr/pointeau/02154X0001/F,2016-06-01,2026-04-01,27643,Tillières-sur-Avre,1.056359525,48.75807598,"['121AS01', '121AS30']","['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf', 'http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS30.pdf']",BSS000RFRF,135.0,114,27,Eure,,40.2,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Fri Jun 28 07:31:38 CEST 2024
+02153X0040/F1,http://services.ades.eaufrance.fr/pointeau/02153X0040/F1,2013-11-06,2015-06-09,27457,Piseux,0.943895883,48.76939577,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000RFNZ,173.0,8,27,Eure,,55.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+02153X0054/P,http://services.ades.eaufrance.fr/pointeau/02153X0054/P,2013-09-05,2026-04-01,27457,Piseux,0.952677587,48.771201837,,[],BSS000RFPP,177.0,1192,27,Eure,,22.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+02153X0002/P,http://services.ades.eaufrance.fr/pointeau/02153X0002/P,2013-09-05,2026-04-01,27457,Piseux,0.975275315,48.773517651,['119AE05'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/119AE05.pdf'],BSS000RFMK,168.2,364,27,Eure,,19.4,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Fri Jun 28 07:31:38 CEST 2024
+02153X0034/F,http://services.ades.eaufrance.fr/pointeau/02153X0034/F,2013-09-05,2023-04-03,27457,Piseux,0.953846447,48.773654317,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000RFNT,179.0,1171,27,Eure,,55.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01797X0044/P,http://services.ades.eaufrance.fr/pointeau/01797X0044/P,2013-09-05,2026-04-01,27457,Piseux,0.953756311,48.786694835,,[],BSS000MSDG,168.0,767,27,Eure,,18.77,,,[],Fri Jun 28 07:31:38 CEST 2024
+01797X0094/P,http://services.ades.eaufrance.fr/pointeau/01797X0094/P,2013-09-06,2026-04-01,27578,Sainte-Marie-d'Attez,0.95479,48.80363,,[],BSS000MSFJ,166.0,766,27,Eure,,12.2,,,[],Fri Jun 28 07:31:38 CEST 2024
+01798X0036/S1,http://services.ades.eaufrance.fr/pointeau/01798X0036/S1,1972-11-09,1984-11-29,27198,Mesnils-sur-Iton,0.992426731,48.816388455,,[],BSS000MSHA,175.0,126,27,Eure,,28.15,,,[],Fri Jun 28 07:31:38 CEST 2024
+01796X0028/S1,http://services.ades.eaufrance.fr/pointeau/01796X0028/S1,1972-11-09,1984-11-29,27054,Bémécourt,0.873483904,48.854949487,,[],BSS000MSAH,186.0,127,27,Eure,,26.95,,,[],Fri Jun 28 07:31:38 CEST 2024
+01792X0020/PZ2,http://services.ades.eaufrance.fr/pointeau/01792X0020/PZ2,2003-01-23,2026-07-04,27565,Le Lesme,0.872630829,48.893151651,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000MRTR,155.0,7596,27,Eure,Forage de Sainte Marguerite de l'Autel (Sainte-Marguerite-de-l'Autel) ,30.6,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Mon May 05 19:51:13 CEST 2025
+01794X0035/S1,http://services.ades.eaufrance.fr/pointeau/01794X0035/S1,1985-04-23,2026-07-04,27436,Nogent-le-Sec,1.026343918,48.920072687,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000MRWS,159.0,11140,27,Eure,Puits Les Grands Gomberts (Nogent-le-Sec) - 27,37.2,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Mon Jun 23 20:50:31 CEST 2025
+01498X0031/S1,http://services.ades.eaufrance.fr/pointeau/01498X0031/S1,1969-07-10,2026-07-05,27281,Gaudreville-la-Rivière,1.04392487,48.962417631,,[],BSS000LBVX,100.0,4189,27,Eure,,9.55,,,[],Fri Jun 28 07:31:38 CEST 2024
+01498X0005/SO,http://services.ades.eaufrance.fr/pointeau/01498X0005/SO,2022-07-27,2026-07-03,27287,Glisolles,1.02592822,48.981819906,,[],BSS000LBUV,85.0,1438,27,Eure,,0.0,,,[],Fri Dec 19 18:58:10 CET 2025
+01493X0001/P,http://services.ades.eaufrance.fr/pointeau/01493X0001/P,1968-12-10,2026-07-04,27298,Graveron-Sémerville,0.973304193,49.094539328,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000LBME,138.0,11231,27,Eure,Puits Ferme du Château (Graveron-Semerville) - 27,43.35,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Mon Sep 23 20:34:56 CEST 2024
+01237X0004/S1,http://services.ades.eaufrance.fr/pointeau/01237X0004/S1,1971-01-27,1984-11-29,27389,Marbeuf,0.966545269,49.157680019,,[],BSS000JKJG,141.0,151,27,Eure,,71.8,,,[],Fri Jun 28 07:31:38 CEST 2024
+01237X0012/S1,http://services.ades.eaufrance.fr/pointeau/01237X0012/S1,1971-01-27,1972-07-25,27011,Amfreville-Saint-Amand,0.931937141,49.212486229,,[],BSS000JKJQ,157.0,18,27,Eure,,52.7,,,[],Fri Jun 28 07:31:38 CEST 2024
+01232X0006/P,http://services.ades.eaufrance.fr/pointeau/01232X0006/P,2006-03-02,2026-07-04,27320,La Haye-du-Theil,0.87606716,49.23438244,['123BW01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/123BW01.pdf'],BSS000JGQF,160.0,6814,27,Eure,Puits de la Haye du Theil (la Haye-du-Theil) - 27,50.2,['HG212'],['Craie du Lieuvin-Ouche - bassin versant de la Risle'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG212'],Thu Oct 03 21:33:02 CEST 2024
+01495X0063/PZ1,http://services.ades.eaufrance.fr/pointeau/01495X0063/PZ1,2013-11-28,2020-02-25,27049,Mesnil-en-Ouche,0.788512047,48.986917574,,[],BSS000LBRG,130.0,2281,27,Eure,Puits de Mancelles (Ajou - 27),9.33,,,[],Fri Jun 28 07:31:38 CEST 2024
+01495X0064/PZ2,http://services.ades.eaufrance.fr/pointeau/01495X0064/PZ2,2013-11-28,2020-02-25,27049,Mesnil-en-Ouche,0.788524354,48.986962674,,[],BSS000LBRH,130.0,2281,27,Eure,,20.6,,,[],Fri Jun 28 07:31:38 CEST 2024
+01496X0011/S1,http://services.ades.eaufrance.fr/pointeau/01496X0011/S1,1972-11-08,1976-05-11,27162,Collandres-Quincarnon,0.846685,48.99336,,[],BSS000LBSC,158.0,40,27,Eure,,41.4,,,[],Fri Jun 28 07:31:38 CEST 2024
+01495X0066/P,http://services.ades.eaufrance.fr/pointeau/01495X0066/P,2013-11-28,2016-08-18,27300,Grosley-sur-Risle,0.802739402,49.045486931,,[],BSS000LBRK,99.0,995,27,Eure,Puits de Grosley-sur-Risle (Grosley-sur-Risle - 27),6.3,,,[],Fri Jun 28 07:31:38 CEST 2024
+01492X0012/S1,http://services.ades.eaufrance.fr/pointeau/01492X0012/S1,1972-11-08,2016-08-18,27466,Le Plessis-Sainte-Opportune,0.835938,49.058272,,[],BSS000LBLW,151.0,959,27,Eure,CHATEAU DE ST LEGER,33.1,,,[],Fri Jun 28 07:31:38 CEST 2024
+01491X0016/SO,http://services.ades.eaufrance.fr/pointeau/01491X0016/SO,2014-09-04,2017-07-11,27051,Beaumont-le-Roger,0.790233623,49.061872751,,[],BSS000LBJE,98.0,701,27,Eure,,,,,[],Fri Jun 28 07:31:38 CEST 2024
+01491X0009/S1,http://services.ades.eaufrance.fr/pointeau/01491X0009/S1,1972-11-08,2026-07-03,27290,Goupil-Othon,0.769762038,49.114406798,['121AW01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AW01.pdf'],BSS000LBHX,150.0,10617,27,Eure,Puits Ferme de la Pommeraie (Goupillières) - 27,47.4,['HG212'],['Craie du Lieuvin-Ouche - bassin versant de la Risle'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG212'],Mon Sep 23 21:07:32 CEST 2024
+01235X0048/S1,http://services.ades.eaufrance.fr/pointeau/01235X0048/S1,1985-09-24,2002-12-09,27425,Nassandres sur Risle,0.716682371,49.157574837,['924AC01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/924AC01.pdf'],BSS000JKGZ,61.0,3123,27,Eure,,6.2,,,[],Fri Jun 28 07:31:38 CEST 2024
+01235X0006/S1,http://services.ades.eaufrance.fr/pointeau/01235X0006/S1,1971-01-27,1973-12-11,27311,Harcourt,0.756969871,49.171448189,,[],BSS000JKFF,138.0,31,27,Eure,,53.5,,,[],Fri Jun 28 07:31:38 CEST 2024
+01236X0008/S1,http://services.ades.eaufrance.fr/pointeau/01236X0008/S1,1971-01-26,2006-02-24,27302,Le Bosc du Theil,0.846921461,49.227245985,['121AW01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AW01.pdf'],BSS000JKHQ,147.0,2898,27,Eure,,51.1,,,[],Fri Jun 28 07:31:38 CEST 2024
+01245X0010/S1,http://services.ades.eaufrance.fr/pointeau/01245X0010/S1,1967-10-12,2026-07-04,27412,Terres de Bord,1.089270969,49.224047153,"['080AA58', '121AZ01', '119AE07']","['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/080AA58.pdf', 'http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AZ01.pdf', 'http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/119AE07.pdf']",BSS000JNAH,136.0,11690,27,Eure,PUITS ECROSVILLE (MONTAURE) - 27,42.4,['HG220'],"[""Craie altérée de l'estuaire de la Seine hors pointe de Caux""]",['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG220'],Mon Jun 23 22:57:35 CEST 2025
+BSS003CLUO/X,http://services.ades.eaufrance.fr/pointeau/BSS003CLUO/X,2018-11-23,2023-12-06,27188,Criquebeuf-sur-Seine,1.110748,49.285246,['924AA01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/924AA01.pdf'],BSS003CLUO,57.75,1780,27,Eure,PIEZO AMONT,62.0,,,[],Fri Oct 18 22:45:29 CEST 2024
+01241X0357/F,http://services.ades.eaufrance.fr/pointeau/01241X0357/F,2018-11-19,2023-12-07,27188,Criquebeuf-sur-Seine,1.104868973,49.301520559,"['040AB75', '121AZ01']","['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/040AB75.pdf', 'http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AZ01.pdf']",BSS000JLBQ,24.0,1844,27,Eure,,17.0,['HG220'],"[""Craie altérée de l'estuaire de la Seine hors pointe de Caux""]",['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG220'],Fri Oct 18 20:50:13 CEST 2024
+BSS003HDQA/X,http://services.ades.eaufrance.fr/pointeau/BSS003HDQA/X,2019-09-05,2026-07-03,27090,Bosroumois,0.898249094,49.286552893,['121AU'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AU.pdf'],BSS003HDQA,160.92,2494,27,Eure,PZ2,117.0,['HG220'],"[""Craie altérée de l'estuaire de la Seine hors pointe de Caux""]",['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG220'],Tue Sep 24 13:55:00 CEST 2024
+01224X0014/S1,http://services.ades.eaufrance.fr/pointeau/01224X0014/S1,1972-11-08,1984-11-29,27468,Pont-Authou,0.701825472,49.24596246,,[],BSS000JGAU,65.0,134,27,Eure,,19.8,,,[],Fri Jun 28 07:31:38 CEST 2024
+00995X0003/S1,http://services.ades.eaufrance.fr/pointeau/00995X0003/S1,1967-09-22,1978-10-25,27102,Bouquetot,0.763507647,49.353767078,,[],BSS000GNNN,135.0,324,27,Eure,,74.22,,,[],Fri Jun 28 07:31:38 CEST 2024
+02163X2004/P,http://services.ades.eaufrance.fr/pointeau/02163X2004/P,2015-11-20,2026-04-01,27423,Muzy,1.330715358,48.776075971,,[],BSS000RGMG,105.0,123,27,Eure,,27.3,,,[],Fri Jun 28 07:31:38 CEST 2024
+01807X0023/P,http://services.ades.eaufrance.fr/pointeau/01807X0023/P,2015-12-01,2026-04-01,27423,Muzy,1.345107787,48.784476137,,[],BSS000MTBN,110.0,122,27,Eure,,34.4,,,[],Fri Jun 28 07:31:38 CEST 2024
+01807X0059/P,http://services.ades.eaufrance.fr/pointeau/01807X0059/P,2015-07-23,2026-04-01,27181,Courdemanche,1.269163896,48.800892937,,[],BSS000MTDA,137.0,125,27,Eure,,20.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01807X0051/S1,http://services.ades.eaufrance.fr/pointeau/01807X0051/S1,1985-05-28,2026-07-04,27391,Marcilly-sur-Eure,1.342297655,48.823719553,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000MTCS,75.0,10862,27,Eure,PUITS DE L'ANCIENNE GARE (MARCILLY-SUR-EURE),12.0,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Mon Sep 23 19:38:51 CEST 2024
+01805X0036/S1,http://services.ades.eaufrance.fr/pointeau/01805X0036/S1,1982-01-26,2026-07-04,27411,Moisville,1.165839057,48.83983924,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000MSYC,153.0,11378,27,Eure,Puits Mairie Ecole (Moisville) - 27,18.0,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Sat Jun 21 20:19:20 CEST 2025
+01807X0001/S1,http://services.ades.eaufrance.fr/pointeau/01807X0001/S1,1972-11-09,1976-03-10,27073,Bois-le-Roi,1.338444312,48.8656293,,[],BSS000MTAQ,133.0,31,27,Eure,,110.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01803X0004/P,http://services.ades.eaufrance.fr/pointeau/01803X0004/P,2002-05-29,2026-07-04,27507,Saint-André-de-l'Eure,1.297264849,48.889721586,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000MSPF,136.5,8271,27,Eure,Puits Touvoye (Saint-André-de-l'Eure) - 27,120.0,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Tue Apr 15 22:57:18 CEST 2025
+01803X0007/S1,http://services.ades.eaufrance.fr/pointeau/01803X0007/S1,1972-11-09,1984-11-29,27277,La Baronnie,1.265760794,48.955356533,,[],BSS000MSPJ,145.0,132,27,Eure,,67.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01508X0134/S1,http://services.ades.eaufrance.fr/pointeau/01508X0134/S1,1985-05-24,2000-01-14,27114,Breuilpont,1.409401757,48.963986168,['924AC07'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/924AC07.pdf'],BSS000LDTK,47.0,1930,27,Eure,,4.6,,,[],Fri Jun 28 07:31:38 CEST 2024
+01508X0133/S1,http://services.ades.eaufrance.fr/pointeau/01508X0133/S1,1985-04-26,2023-10-10,27231,Fains,1.388574729,48.994531044,['040AB11'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/040AB11.pdf'],BSS000LDTJ,43.0,9706,27,Eure,Puits de Fains (Fains) - 27,2.05,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Fri Jun 28 07:31:38 CEST 2024
+01805X0008/P,http://services.ades.eaufrance.fr/pointeau/01805X0008/P,2015-12-01,2026-04-01,27206,Droisy,1.160337037,48.799626936,,[],BSS000MSWY,147.0,121,27,Eure,,21.8,,,[],Fri Jun 28 07:31:38 CEST 2024
+01805X0019/P,http://services.ades.eaufrance.fr/pointeau/01805X0019/P,2015-10-01,2026-04-01,27416,Buis-sur-Damville,1.086203267,48.834993519,,[],BSS000MSXK,158.0,123,27,Eure,,33.4,,,[],Fri Jun 28 07:31:38 CEST 2024
+01801X0010/S1,http://services.ades.eaufrance.fr/pointeau/01801X0010/S1,1985-05-09,2026-07-04,27693,Sylvains-Lès-Moulins,1.086499072,48.881862606,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000MSJQ,132.0,10538,27,Eure,Puits de Coulonges (Sylvains-les-Moulins) - 27,32.0,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Fri Oct 10 14:25:57 CEST 2025
+01801X0013/S1,http://services.ades.eaufrance.fr/pointeau/01801X0013/S1,1971-01-08,1978-05-02,27693,Sylvains-Lès-Moulins,1.078231289,48.896964303,,[],BSS000MSJT,128.0,2343,27,Eure,,17.65,,,[],Fri Jun 28 07:31:38 CEST 2024
+01801X0042/F,http://services.ades.eaufrance.fr/pointeau/01801X0042/F,2022-07-25,2026-07-03,27693,Sylvains-Lès-Moulins,1.089638993,48.919040203,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000MSKY,119.0,1440,27,Eure,,37.5,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Fri Jun 28 07:31:38 CEST 2024
+01801X0004/S1,http://services.ades.eaufrance.fr/pointeau/01801X0004/S1,1968-02-27,1978-10-26,27301,Grossœuvre,1.161142159,48.953800384,,[],BSS000MSJJ,138.5,117,27,Eure,,42.25,,,[],Sun Apr 12 13:00:02 CEST 2026
+01501X0046/S1,http://services.ades.eaufrance.fr/pointeau/01501X0046/S1,1985-05-10,1985-12-13,27439,Normanville,1.150697855,49.078335891,,[],BSS000LBZQ,48.0,8,27,Eure,,4.4,,,[],Fri Jun 28 07:31:38 CEST 2024
+01494X0004/S1,http://services.ades.eaufrance.fr/pointeau/01494X0004/S1,1968-02-22,1984-11-29,27504,Sacquenville,1.073747163,49.083989626,,[],BSS000LBNH,143.0,184,27,Eure,,127.6,,,[],Fri Jun 28 07:31:38 CEST 2024
+01245X0016/S1,http://services.ades.eaufrance.fr/pointeau/01245X0016/S1,1968-01-30,1972-07-26,27127,Canappeville,1.118898374,49.15768802,,[],BSS000JNAP,145.0,53,27,Eure,,55.2,,,[],Fri Jun 28 07:31:38 CEST 2024
+01245X0030/S1,http://services.ades.eaufrance.fr/pointeau/01245X0030/S1,1968-01-30,1981-12-24,27403,Le Mesnil-Jourdain,1.120613701,49.177132849,,[],BSS000JNBD,137.98,154,27,Eure,,61.05,,,[],Fri May 01 07:06:06 CEST 2026
+01811X2035/S1,http://services.ades.eaufrance.fr/pointeau/01811X2035/S1,1985-05-24,1989-01-28,27278,Garennes-sur-Eure,1.450771854,48.918987646,['924AC07'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/924AC07.pdf'],BSS000MTJZ,57.0,413,27,Eure,,5.8,,,[],Fri Jun 28 07:31:38 CEST 2024
+01515X2033/S1,http://services.ades.eaufrance.fr/pointeau/01515X2033/S1,1968-12-06,1984-11-29,27696,Villiers-en-Désœuvre,1.502640162,48.975046439,,[],BSS000LESR,148.0,685,27,Eure,,34.27,,,[],Fri Jun 28 07:31:38 CEST 2024
+01515X2036/F,http://services.ades.eaufrance.fr/pointeau/01515X2036/F,1993-05-06,1993-05-06,27689,Villegats,1.460860339,48.992990627,,[],BSS000LESU,95.0,1,27,Eure,,112.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01515X2015/S1,http://services.ades.eaufrance.fr/pointeau/01515X2015/S1,1968-09-26,2026-07-03,27136,Chaignes,1.445393268,49.014101938,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000LERX,144.0,10979,27,Eure,Puits de Chaignes (Chaignes) - 27,120.8,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Mon Sep 23 20:55:42 CEST 2024
+01508X0100/P,http://services.ades.eaufrance.fr/pointeau/01508X0100/P,2002-01-21,2026-07-04,27203,Douains,1.430497927,49.040770323,['113AK03'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/113AK03.pdf'],BSS000LDRZ,133.0,6396,27,Eure,PUITS DE DOUAINS (DOUAINS) - 27,34.33,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Thu Oct 03 19:42:36 CEST 2024
+01506X0016/P1,http://services.ades.eaufrance.fr/pointeau/01506X0016/P1,2001-11-22,2026-07-04,27158,Cierrey,1.249032003,49.003128233,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000LDJZ,130.5,7291,27,Eure,Puits Ferme de la Pommeraie (Cierrey) - 27,71.95,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Mon Sep 23 21:37:11 CEST 2024
+01506X0013/S1,http://services.ades.eaufrance.fr/pointeau/01506X0013/S1,1968-12-06,2001-10-16,27410,Miserey,1.240227843,49.016901105,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000LDJW,134.0,1954,27,Eure,,77.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01508X0006/S1,http://services.ades.eaufrance.fr/pointeau/01508X0006/S1,1977-05-05,2000-01-14,27190,Croisy-sur-Eure,1.347846259,49.030202233,['924AC07'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/924AC07.pdf'],BSS000LDNB,39.0,1880,27,Eure,,2.45,,,[],Fri Jun 28 07:31:38 CEST 2024
+BSS004GCQN/X,http://services.ades.eaufrance.fr/pointeau/BSS004GCQN/X,2024-01-19,2026-07-03,27299,Gravigny,1.161723019,49.057505801,,[],BSS004GCQN,54.49,881,27,Eure,PIÉZOMÈTRE,30.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+BSS004AFBP/X,http://services.ades.eaufrance.fr/pointeau/BSS004AFBP/X,2022-07-28,2024-01-19,27439,Normanville,1.163554262,49.05835226,,[],BSS004AFBP,52.8,540,27,Eure,,30.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01502X0089/F,http://services.ades.eaufrance.fr/pointeau/01502X0089/F,2012-12-20,2026-07-04,27439,Normanville,1.180364522,49.070200354,['121AS30'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS30.pdf'],BSS000LCEZ,86.0,4852,27,Eure,FORAGE DE NORMANVILLE (NORMANVILLE) - 27,67.0,['HG211'],['Craie altérée du Neubourg-Iton-plaine de Saint-André'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG211'],Thu Feb 19 22:09:02 CET 2026
+01501X0002/F,http://services.ades.eaufrance.fr/pointeau/01501X0002/F,1967-04-02,2008-12-10,27439,Normanville,1.161462521,49.077376226,['121AS01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AS01.pdf'],BSS000LBXU,49.0,4746,27,Eure,Puits de Normanville (Normanville) - 27,16.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01501X0037/S1,http://services.ades.eaufrance.fr/pointeau/01501X0037/S1,1968-03-27,1981-12-24,27147,La Chapelle-du-Bois-des-Faulx,1.164508343,49.113733537,,[],BSS000LBZF,132.0,153,27,Eure,,90.0,,,[],Fri Jun 28 07:31:38 CEST 2024
+01242X0116/S1,http://services.ades.eaufrance.fr/pointeau/01242X0116/S1,1985-05-24,2008-02-18,27528,Le Vaudreuil,1.22147949,49.252530003,['121AZ01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AZ01.pdf'],BSS000JLHW,9.0,4739,27,Eure,,34.25,,,[],Fri Jun 28 07:31:38 CEST 2024
+BSS003FBUG/X,http://services.ades.eaufrance.fr/pointeau/BSS003FBUG/X,2018-11-19,2023-12-06,27701,Val-de-Reuil,1.236998,49.28483,['924AA01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/924AA01.pdf'],BSS003FBUG,9.76,1843,27,Eure,PZ CEMEX,9.55,['HG001'],['Alluvions de la Seine moyenne et aval'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG001'],Fri Oct 18 22:44:31 CEST 2024
+01242X0530/FN3,http://services.ades.eaufrance.fr/pointeau/01242X0530/FN3,2008-01-10,2026-07-04,27701,Val-de-Reuil,1.212018314,49.305417373,['121AZ01'],['http://reseau.eaufrance.fr/geotraitements/bdlisa/files/entite/121AZ01.pdf'],BSS000JMAM,8.0,6692,27,Eure,FORAGE DE LA BASE DE LOISIRS (VAL-DE-REUIL),20.5,['HG201'],['Craie du Vexin normand et picard'],['http://www.sandre.eaufrance.fr/geo/MasseDEauSouterraine/HG201'],Mon Sep 23 22:01:21 CEST 2024

datasets/IDPR_values.csv

@@ -0,0 +1,28 @@
+fid,X,Y,X_lambert,Y_lambert,station_id,basin_name,latitude,longitude,IDPR
+1,522210.5142,6852566.356,522210.5142,6852566.356,H602021010,La Risle,48.74870522,0.58156195,2000
+2,539761.0001,6883805.004,539761.0001,6883805.004,H605641401,La Risle,49.03411899,0.808378297,885
+3,533400.0001,6900649.005,533400.0001,6900649.005,H620021010,La Risle,49.18388271,0.714759598,1000
+4,532138.0001,6907155.004,532138.0001,6907155.004,H623021010,La Risle,49.24201812,0.694854113,1000
+5,511031.0001,6849508.005,511031.0001,6849508.005,H600021010,La Risle,48.71803654,0.430946285,1212
+6,531904.0001,6860441.004,531904.0001,6860441.004,H603021010,La Risle,48.82209534,0.710239413,1000
+7,534773.0001,6874894.005,534773.0001,6874894.005,H605021010,La Risle,48.9527593,0.743674684,1117
+8,540227.0001,6883351.005,540227.0001,6883351.005,H605022010,La Risle,49.03015442,0.814920403,237
+9,538193.0001,6878375.005,538193.0001,6878375.005,H605641101,La Risle,48.98491874,0.789022568,1000
+10,539177.0002,6885262.005,539177.0002,6885262.005,H605641201,La Risle,49.04706878,0.799839826,237
+11,536394.5252,6890311.1,536394.5252,6890311.1,H606000101,La Risle,49.09174604,0.759834916,1000
+12,524179.0001,6918393.004,524179.0001,6918393.004,H623022010,La Risle,49.34085604,0.58089832,545
+13,567277.0001,6817949.004,567277.0001,,H402021010,L'Eure,48.44823808,1.205047075,1159
+14,587267.0001,6810648.005,587267.0001,,H403301101,L'Eure,48.38634694,1.477223775,545
+15,588995.0001,6816797.004,588995.0001,,H404021010,L'Eure,48.441954,1.498980903,547
+16,580935.0001,6854187.004,580935.0001,6854187.004,H420021010,L'Eure,48.77678274,1.379648722,545
+17,580952.6709,6854179.489,580952.6709,6854179.489,H420021011,L'Eure,48.77671842,1.379891235,1134
+18,573648.0001,6817910.005,573648.0001,,H403021010,L'Eure,48.44915882,1.291192655,2000
+19,587926,6819632.004,587926,6819632.004,H404021101,L'Eure,48.46726995,1.483793322,925
+20,592634.4399,6839392.744,592634.4399,6839392.744,H414000201,L'Eure,48.64579381,1.542543476,1292
+21,585363.0001,6845654.004,585363.0001,6845654.004,H416021010,L'Eure,48.70085268,1.442183941,1172
+22,580914.8963,6854220.871,580914.8963,6854220.871,H420021012,L'Eure,48.77708356,1.379365749,586
+23,580769.0001,6855886.004,580769.0001,6855886.004,H426021010,L'Eure,48.7920293,1.376915068,1010
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datasets/README.md

@@ -0,0 +1,320 @@
+# Datasets Documentation
+
+**Project:** Physics-Informed KARST-Aware GNN for Streamflow Prediction
+**Study Area:** La Risle and La Eure River Systems, Seine Basin, France
+**Period:** 1960-2026 (historical data)
+
+## Directory Structure
+
+```
+datasets/
+├── station_list.csv                    # 27 stations metadata (coordinates, names)
+├── selected_stations.csv               # 27 selected station codes
+├── IDPR_values.csv                     # BRGM infiltration/runoff index (27 stations)
+├── ADES/                               # Groundwater data (KARST connectivity)
+│   ├── groundwater_stations.csv        # 114 groundwater monitoring wells
+│   ├── groundwater_levels_watershed.csv# 272,379 groundwater level measurements
+│   ├── stations_metadata.csv          # 10,001 stations (full ADES database)
+│   └── ADES_data_fetching.py          # Data collection script
+├── Watersehd_risle/                    # La Risle watershed boundary
+│   └── Watershed_Risle.shp            # Shapefile (EPSG:2154)
+├── Watershed_Eure/                     # La Eure watershed boundary
+│   └── Watershed_Eure.shp             # Shapefile (EPSG:2154)
+├── Risle_Eure_watershed/              # Merged watershed boundary
+│   └── Risle_Eure_Watershed.shp       # Combined shapefile (EPSG:2154)
+└── River Images/                       # Reference maps
+    ├── Carte-de-la_Seine-390x305.png
+    ├── Eure_(rivière).png
+    └── Risle.png
+```
+
+## Available Data
+
+### 1. Hydrometric Stations (`station_list.csv`)
+
+**File:** `station_list.csv`
+**Rows:** 27 stations
+**Columns:**
+- `X`, `Y` - Lambert 93 coordinates (EPSG:2154)
+- `station_code` - Unique station identifier (e.g., H602021010)
+- `region_name` - NORMANDIE
+- `departament_name` - ORNE or EURE
+- `station_name` - Full station name
+- `municipality` - Municipality name
+- `INSEE` - INSEE code
+- `id_root` - Root identifier
+- `lon`, `lat` - WGS84 coordinates
+- `lon-lat-ID` - Combined identifier
+
+**Basin Distribution:**
+- **La Risle:** 12 stations (e.g., La Risle à Rai, La Risle à Brionne, etc.)
+- **La Eure:** 13 stations (e.g., L'Eure à Chartres, L'Eure à Louviers, etc.)
+- **Tributary:** 1 station (Le bras de l'Eure à Lormaye)
+
+**Sample Stations:**
+```
+H602021010 - La Risle à Rai (48.749°N, 0.582°E)
+H605641401 - La Risle à Barquet (49.034°N, 0.808°E)
+H620021010 - La Risle à Brionne
+H4202010  - L'Eure à Chartres
+H4522010  - L'Eure à Louviers
+```
+
+### 2. Selected Stations (`selected_stations.csv`)
+
+**File:** `selected_stations.csv`
+**Rows:** 27 stations
+**Content:** List of selected station codes for analysis
+
+### 3. IDPR Data (`IDPR_values.csv`)
+
+**File:** `IDPR_values.csv`
+**Source:** BRGM (Bureau de Recherches Géologiques et Minières)
+**Rows:** 27 stations
+**Purpose:** Infiltration vs runoff tendency (KARST indicator)
+
+**Columns:**
+- `fid` - Feature ID
+- `X`, `Y` - Original coordinates
+- `X_lambert`, `Y_lambert` - Lambert 93 coordinates
+- `station_id` - Station identifier
+- `basin_name` - "La Risle" or "La Eure"
+- `latitude`, `longitude` - WGS84 coordinates
+- `IDPR` - **Infiltration Dominance vs Precipitation Runoff index**
+  - Higher values → More infiltration (karst behavior)
+  - Lower values → More surface runoff
+
+**IDPR Range in Dataset:**
+- La Risle: 885 - 2000
+- Indicates varying karst influence across the basin
+
+### 4. ADES Groundwater Data
+
+**Source:** ADES (Accès aux Données sur les Eaux Souterraines)
+**Purpose:** Karst groundwater connectivity, subsurface flow pathways
+
+#### 4.1 Groundwater Stations (`ADES/groundwater_stations.csv`)
+
+**Rows:** 114 groundwater monitoring wells in watershed
+**Columns:**
+- `code_bss` - BSS code (unique well identifier)
+- `urn_bss` - URN identifier
+- `date_debut_mesure`, `date_fin_mesure` - Measurement period
+- `code_commune_insee`, `nom_commune` - Municipality
+- `x`, `y` - Coordinates
+- `bss_id` - Short BSS ID
+- `altitude_station` - Well altitude (m)
+- `nb_mesures_piezo` - Number of piezometric measurements
+- `code_departement`, `nom_departement` - Department (61=Orne, 27=Eure)
+- `profondeur_investigation` - Investigation depth (m)
+
+**Sample Wells:**
+- BSS000TTRG (Le Mage, Orne) - 137 measurements, depth 38m, altitude 231m
+- BSS000TTRB (Longny les Villages) - 9 measurements, depth 55m, altitude 235m
+
+#### 4.2 Groundwater Levels (`ADES/groundwater_levels_watershed.csv`)
+
+**Rows:** 272,379 piezometric measurements
+**Period:** Various (e.g., 2013-present for some wells)
+**Columns:**
+- `code_bss`, `bss_id`, `urn_bss` - Well identifiers
+- `date_mesure` - Measurement date
+- `timestamp_mesure` - Unix timestamp
+- `niveau_nappe_eau` - Groundwater level (m above reference)
+- `profondeur_nappe` - Depth to water table (m below surface)
+- `mode_obtention` - Measurement method
+- `statut` - Data status ("Donnée contrôlée niveau 2")
+- `qualification` - Data quality ("Correcte", etc.)
+- `code_producteur`, `nom_producteur` - Data producer
+
+**Note:** This is time series data for groundwater levels, crucial for understanding subsurface karst connectivity.
+
+#### 4.3 ADES Metadata (`ADES/stations_metadata.csv`)
+
+**Rows:** 10,001 stations (full ADES database, not filtered)
+**Purpose:** Reference metadata for all groundwater stations in France
+
+### 5. Watershed Shapefiles
+
+#### 5.1 La Risle Watershed (`Watersehd_risle/Watershed_Risle.shp`)
+
+**CRS:** EPSG:2154 (Lambert 93 - French national projection)
+**Features:** 1 multipolygon
+**Attributes:**
+- `ID_INTERNE` - Internal ID (e.g., Sav21_226)
+- `ID_FONCTIO` - Functional ID
+- `NOM` - Watershed name
+- `SITUATION_` - Situation/status
+
+#### 5.2 La Eure Watershed (`Watershed_Eure/Watershed_Eure.shp`)
+
+**CRS:** EPSG:2154 (Lambert 93)
+**Features:** 1 multipolygon
+**Attributes:** Same as La Risle
+
+#### 5.3 Merged Watershed (`Risle_Eure_watershed/Risle_Eure_Watershed.shp`)
+
+**CRS:** EPSG:2154 (Lambert 93)
+**Features:** 1 multipolygon (merged boundary)
+**Attributes:**
+- `FID` - Feature ID
+- `geometry` - Geometry
+
+**Note:** This merged shapefile covers both La Risle and La Eure basins for basin-wide analysis.
+
+### Hydrometric Data (Hub'Eau API)
+
+**Status:** Downloaded and available datasets/hydrometric
+**Expected:** JSON and CSV files for 27 stations (1960-2026)
+
+**Historical Statistics (Daily/Monthly):**
+- `QmnJ` / `QmM` - Mean discharge (m³/s)
+- `QIXnJ` / `QIXM` - Maximum instantaneous discharge (m³/s)
+- `QINnJ` / `QINM` - Minimum instantaneous discharge (m³/s)
+- `HIXnJ` / `HIXM` - Maximum water level (m)
+
+**Real-Time Observations (5-min interval, ~1 month):**
+- `H` - Water level (m)
+- `Q` - River discharge (m³/s)
+
+### Meteorological Data (SAFRAN Reanalysis)
+
+**Status:** datasets/safran
+**Expected:** JSON and CSV files for 27 stations (1960-2026)
+
+**Variables (12):**
+- `DLI_Q` - Atmospheric radiation (W/m²)
+- `DRAINC_Q` - Drainage (mm)
+- `ETP_Q` - Potential evapotranspiration (mm)
+- `FF_Q` - Wind speed (m/s)
+- `HU_Q` - Relative humidity (%)
+- `PRELIQ_Q` - Liquid precipitation (mm)
+- `PRENEI_Q` - Solid precipitation (mm)
+- `RESR_NEIGE_Q` - Snowpack water equivalent (mm)
+- `RUNC_Q` - Runoff (mm)
+- `SSI_Q` - Visible radiation (W/m²)
+- `SWI_Q` - Soil moisture index
+- `T_Q` - Average air temperature (°C)
+
+### DEM and Topographic Data
+
+**Status:** datasets/station_elevations.csv
+**Required for:**
+- Elevation statistics (mean, min, max)
+- Basin slope calculation
+- Drainage density
+- Topographic Wetness Index (TWI)
+- River network topology extraction (QGIS hydrology tools)
+
+**Recommended Source:**
+- IGN RGE ALTI (French national DEM, 1m or 5m resolution)
+- EU-DEM (25m resolution)
+
+### River Network Topology
+
+**Status:** ❌ Not yet in repository
+**Required:** `station_edges.csv` for graph construction
+
+**Expected Format:**
+```csv
+source,target,distance,elevation_gradient,basin_id
+H602021010,H605641401,15.2,10.0,0
+H605641401,H620021010,12.5,-5.0,0
+...
+```
+
+**Generation Method:**
+- Use QGIS DEM hydrology processing tools
+- Extract upstream-downstream relationships
+- Calculate river distances and elevation gradients
+- Ensure no cross-basin edges (La Risle ≠ La Eure)
+
+### Basin Attributes (To Be Extracted)
+
+**Status:** ❌ Not yet extracted from shapefiles/DEM
+
+**Topological:**
+- Elevation, slope, drainage density, TWI, basin area
+
+**Soil Properties:**
+- Soil type, texture, hydraulic conductivity, porosity, depth
+
+**Land Use:**
+- Forest/agricultural/urban cover %, NDVI
+
+**Geological/KARST:**
+- Aquifer characteristics, lithology, permeability, sinkhole density
+
+## Data Processing Notes
+
+### Basin Assignment
+
+Based on station names in `station_list.csv`:
+
+**La Risle Stations (basin_id = 0):**
+- 12 stations with names starting with "La Risle"
+- Station codes: H60*, H62*
+
+**La Eure Stations (basin_id = 1):**
+- 13 stations with names starting with "L'Eure"
+- Station codes: H42*, H45*, H46*, H47*
+- Includes tributary: "Le bras de l'Eure"
+
+### Coordinate Systems
+
+**All geospatial data uses:**
+- **Projected:** EPSG:2154 (Lambert 93) for distances/areas
+- **Geographic:** EPSG:4326 (WGS84) for lat/lon
+
+**Conversion needed for:**
+- Station coordinates (already in both systems in `station_list.csv`)
+- Shapefiles (already in EPSG:2154)
+
+### Data Size Summary
+
+| File | Rows | Size | Notes |
+|------|------|------|-------|
+| `station_list.csv` | 27 | 4.1 KB | Station metadata |
+| `selected_stations.csv` | 27 | 338 B | Station codes only |
+| `IDPR_values.csv` | 27 | 2.6 KB | KARST infiltration index |
+| `ADES/groundwater_stations.csv` | 114 | ~50 KB | Groundwater wells |
+| `ADES/groundwater_levels_watershed.csv` | 272,379 | ~50 MB | **Large!** Time series |
+| `ADES/stations_metadata.csv` | 10,001 | ~2 MB | Full ADES database |
+
+**⚠️ Note:** `groundwater_levels_watershed.csv` is the largest file (272K rows). Use efficient processing (chunking, filtering by date range).
+
+## Next Steps
+
+1. **Collect Hydrometric Data**
+   - Use Hub'Eau API to download discharge/water level data
+   - Store in `datasets/hydrometric/` (JSON and CSV)
+
+2. **Collect SAFRAN Data**
+   - Download meteorological reanalysis for 27 station coordinates
+   - Store in `datasets/safran/` (JSON and CSV)
+
+3. **Acquire DEM**
+   - Download IGN RGE ALTI or EU-DEM for study area
+   - Store in `datasets/DEM/`
+
+4. **Extract River Topology**
+   - Use QGIS DEM hydrology tools
+   - Generate `datasets/station_edges.csv`
+
+5. **Extract Basin Attributes**
+   - Use DEM to calculate topological features
+   - Use soil/land use databases for additional features
+   - Store in `datasets/basin_features/`
+
+6. **Process Data Through Pipeline**
+   - Run `example_pipeline.py` once all data is available
+   - Generate fused datasets, graphs, and tensors
+
+## Data Sources & References
+
+- **Hub'Eau API:** https://hubeau.eaufrance.fr/
+- **SAFRAN Reanalysis:** Météo-France
+- **ADES:** https://ades.eaufrance.fr/ (groundwater data)
+- **BRGM IDPR:** Bureau de Recherches Géologiques et Minières
+- **IGN:** https://geoservices.ign.fr/ (DEM, elevation data)
+- **Watersheds:** Digitized from official French hydrographic boundaries

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datasets/hydrometric/discharge_observations.csv

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+version https://git-lfs.github.com/spec/v1
+oid sha256:bdc0c09df588962065b029d2a46ca149654a1bb6ae3c7ddfec81564de96be2fc
+size 15544423

datasets/hydrometric/discharge_observations.json

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+version https://git-lfs.github.com/spec/v1
+oid sha256:378b64b0e3f7d76880449af583f2e5ccff1a759d8ce79dacc80de0aaa4caa7ca
+size 51952533

datasets/hydrometric/download_log.txt

@@ -0,0 +1,105 @@
+Downloading hydrometric data for 27 stations...
+Output: datasets/hydrometric
+
+================================================================================
+DOWNLOADING DISCHARGE (Q)
+================================================================================
+
                                                 
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                         
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
                                                          
+  Error 206
+✗ H602021010: No data
+✓ H605641401: 8824 observations
+✓ H620021010: 8050 observations
+  Error 206
+✗ H623021010: No data
+✗ H600021010: No data
+✗ H603021010: No data
+✓ H605021010: 7654 observations
+✓ H605022010: 11689 observations
+✓ H605641101: 5278 observations
+✓ H605641201: 5888 observations
+✓ H606000101: 57 observations
+✓ H623022010: 5163 observations
+✗ H402021010: No data
+✓ H403301101: 7190 observations
+✓ H404021010: 947 observations
+✗ H420021010: No data
+✓ H420021011: 12427 observations
+  Error 206
+✗ H403021010: No data
+✓ H404021101: 13673 observations
+✗ H414000201: No data
+  Error 206
+✗ H416021010: No data
+✓ H420021012: 4557 observations
+  Error 206
+✗ H426021010: No data
+✗ H426021201: No data
+✓ H431021010: 9821 observations
+  Error 206
+✗ H432021010: No data
+  Error 206
+✗ H438021010: No data
+
+✓ Discharge: 101218 total observations
+  Stations: 14
+  Date range: 1969-01-01 to 2026-08-12
+
+================================================================================
+DOWNLOADING WATER LEVEL (H)
+================================================================================
+
                                                   
                                                           
                                                           
                                                           
                                                           
                                                           
                                                           
                                                           
                                                           
                                                           
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
                                                            
+  Error 206
+✗ H602021010: No data
+✓ H605641401: 8824 observations
+✓ H620021010: 8050 observations
+  Error 206
+✗ H623021010: No data
+✗ H600021010: No data
+✗ H603021010: No data
+✓ H605021010: 7654 observations
+✓ H605022010: 11689 observations
+✓ H605641101: 5278 observations
+✓ H605641201: 5888 observations
+✓ H606000101: 57 observations
+✓ H623022010: 5163 observations
+✗ H402021010: No data
+✓ H403301101: 7190 observations
+✓ H404021010: 947 observations
+✗ H420021010: No data
+✓ H420021011: 12427 observations
+  Error 206
+✗ H403021010: No data
+✓ H404021101: 13673 observations
+✗ H414000201: No data
+  Error 206
+✗ H416021010: No data
+✓ H420021012: 4557 observations
+  Error 206
+✗ H426021010: No data
+✗ H426021201: No data
+  Error 500
+✗ H431021010: No data
+  Error 206
+✗ H432021010: No data
+  Error 206
+✗ H438021010: No data
+
+✓ Water level: 91397 total observations
+  Stations: 13
+  Date range: 1969-01-01 to 2026-08-12
+
+================================================================================
+DOWNLOAD COMPLETE
+================================================================================
+Files saved to: datasets/hydrometric
+
+Files created:
+  - station_metadata.csv (0.0 MB)
+  - waterlevel_observations.csv (13.4 MB)
+  - download_summary.json (0.0 MB)
+  - discharge_observations.json (49.5 MB)
+  - download_pid.txt (0.0 MB)
+  - station_metadata.json (0.0 MB)
+  - discharge_observations.csv (14.8 MB)
+  - waterlevel_observations.json (44.7 MB)
+  - download_log.txt (0.0 MB)

datasets/hydrometric/download_pid.txt

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+43075

datasets/hydrometric/download_summary.json

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+{
+  "download_date": "2026-08-13T22:11:14.029275",
+  "num_stations": 27,
+  "stations_with_metadata": 0,
+  "historical_data": {
+    "QmJ": 0,
+    "QIJ": 0,
+    "HIJ": 0,
+    "QmM": 0,
+    "QIM": 0,
+    "HIM": 0
+  },
+  "realtime_observations": 0
+}

datasets/hydrometric/waterlevel_observations.csv

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+version https://git-lfs.github.com/spec/v1
+oid sha256:6d65f98eb9c9e9f8d4b02acfb329133c722acbc72b0e8c83c0df18375bd61bc4
+size 14030867

datasets/hydrometric/waterlevel_observations.json

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+version https://git-lfs.github.com/spec/v1
+oid sha256:8899387fe06ebdd592b96f7f20e7c1d6f6e08248c245c29d928150b6085834ee
+size 46900156

datasets/safran/download_pid.txt

@@ -0,0 +1 @@
+26979