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LICENSE

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+This package aggregates collocated oceanographic data derived from upstream public products.
+
+Use is subject to the terms and citation requirements of the upstream EN4/ARGO,
+GLORYS, OSTIA, sea-level, and sea-surface-salinity products. This file is a
+dataset license notice, not a replacement for upstream product licenses.

README.md

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+---
+license: other
+pretty_name: DepthDif GeoTIFF raster and aligned ARGO dataset
+tags:
+- oceanography
+- argo
+- glorys
+- ostia
+- sea-level
+- sea-surface-salinity
+- geotiff
+- zarr
+configs:
+- config_name: profile-index
+  data_files:
+  - split: profiles
+    path: indices/profiles.parquet
+  - split: variables
+    path: indices/variables.parquet
+---
+
+# DepthDif GeoTIFF Raster and Aligned ARGO Dataset
+
+This dataset package contains the model-ready DepthDif GeoTIFF raster store and
+the enriched ARGO profile Zarr used to create it.
+
+## Dataset Overview
+
+<p align="center">
+  <img src="assets/figures/depthdif_schema.png" width="85%" alt="DepthDif dataset and model overview" />
+</p>
+
+## Layout
+
+```text
+assets/
+  figures/depthdif_schema.png
+  data/geotiff_dataset_random100_surface.png
+  data/argo_on_glorys_grid_3D.gif
+  data/profile_comparison_good_alignment.png
+  data/profile_comparison_bad_alignment.png
+rasters/
+  glorys/thetao/
+  glorys/so/
+  ostia/analysed_sst/
+  sealevel/adt/
+  sss/sos/
+  sss/dos/
+argo/
+  argo_profiles_on_grid.zarr/
+data/
+  argo_glors_ostia_ssh.zarr/
+indices/
+  profiles.parquet
+  variables.parquet
+metadata/
+  dataset_description.json
+  citation.cff
+  stac-item.json
+examples/
+  open_with_xarray.py
+  subset_by_region_time.py
+manifest.yaml
+masks/
+```
+
+The `rasters/` directory is intentionally at the repository root. It contains
+the aligned uint8 GeoTIFF products used by the pixel-space dataloader. The
+compact `argo/argo_profiles_on_grid.zarr` store is the grid-indexed ARGO input
+used by that dataloader.
+
+## Raster Example
+
+Representative surface-level training patches from the exported GeoTIFF store:
+
+<p align="center">
+  <img src="assets/data/geotiff_dataset_random100_surface.png" width="85%" alt="Random surface-level training dataset patches" />
+</p>
+
+## Raster Products
+
+All GeoTIFF rasters are exported on the GLORYS 0.1 degree global grid
+(`EPSG:4326`, 3600 x 1800 pixels, west-to-east longitudes from -180 to 180 and
+north-to-south latitudes from 90 to -90). The current package contains 761
+weekly target dates per raster product, from 2010-01-01 through 2024-07-26.
+Files are named `<variable>_YYYYMMDD.tif`.
+
+The GLORYS variables are depth-resolved 50-band GeoTIFFs:
+
+- `rasters/glorys/thetao/`: potential temperature, encoded as Kelvin.
+- `rasters/glorys/so/`: salinity, encoded as PSU.
+
+The surface products are single-band GeoTIFFs aggregated to the same weekly
+target dates with a centered 7-day mean window:
+
+- `rasters/ostia/analysed_sst/`: OSTIA analysed sea-surface temperature in Kelvin.
+- `rasters/sealevel/adt/`: absolute dynamic topography in meters.
+- `rasters/sss/sos/`: sea-surface salinity in PSU.
+- `rasters/sss/dos/`: sea-surface density in kg/m3.
+
+Raster pixels are stored as `uint8` with `255` reserved for nodata. Valid codes
+`0..254` are linearly decoded using the stretch ranges in `manifest.yaml`;
+per-file statistics, source filenames, compression, target dates, and the full
+depth axis are also recorded there.
+
+## ARGO Alignment Examples
+
+ARGO profiles are projected onto the fixed 50-level GLORYS depth axis before
+spatial rasterization. The examples below show the grid-indexed ARGO
+representation and profile-level alignment quality.
+
+<p align="center">
+  <img src="assets/data/argo_on_glorys_grid_3D.gif" width="70%" alt="Depth-aligned ARGO values on the GLORYS grid" />
+</p>
+
+<p align="center">
+  <img src="assets/data/profile_comparison_good_alignment.png" width="72%" alt="Example of good ARGO-to-GLORYS profile alignment" />
+</p>
+
+<p align="center">
+  <img src="assets/data/profile_comparison_bad_alignment.png" width="72%" alt="Example of weaker ARGO-to-GLORYS profile alignment" />
+</p>
+
+The full enriched profile-level ARGO collocation dataset is available at:
+
+```python
+import xarray as xr
+
+ds = xr.open_zarr("data/argo_glors_ostia_ssh.zarr", consolidated=None)
+```
+
+The lightweight Parquet indices are included for preview and filtering:
+
+```python
+import pandas as pd
+
+profiles = pd.read_parquet("indices/profiles.parquet")
+variables = pd.read_parquet("indices/variables.parquet")
+```
+
+Coverage:
+
+- Raster target dates: 2010-01-01 to 2024-07-26
+- Enriched ARGO profile dates: 2010-01-01 to 2024-07-31
+- GLORYS depth levels: 50
+
+Upstream product licenses and citation requirements for EN4/ARGO, GLORYS,
+OSTIA, sea-level, and sea-surface-salinity products still apply.

argo/argo_profiles_on_grid.zarr/.zattrs

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+{
+  "created_by": "depth_recon.data.dataset_creation.export_dataset_geotiff.export_dataset_geotiff",
+  "source_kind": "enriched",
+  "temperature_units": "K",
+  "temperature_stretch": {
+    "name": "temperature_kelvin",
+    "storage_dtype": "uint8",
+    "minimum": 270.15,
+    "maximum": 308.15,
+    "units": "K",
+    "nodata": 255,
+    "valid_code_min": 0,
+    "valid_code_max": 254,
+    "valid_code_count": 255,
+    "quantization_step": 0.14960629921259844,
+    "max_abs_quantization_error": 0.07480314960629922,
+    "decode": "minimum + code / 254 * (maximum - minimum)"
+  },
+  "salinity_stretch": {
+    "name": "salinity",
+    "storage_dtype": "uint8",
+    "minimum": 30.0,
+    "maximum": 40.0,
+    "units": "PSU",
+    "nodata": 255,
+    "valid_code_min": 0,
+    "valid_code_max": 254,
+    "valid_code_count": 255,
+    "quantization_step": 0.03937007874015748,
+    "max_abs_quantization_error": 0.01968503937007874,
+    "decode": "minimum + code / 254 * (maximum - minimum)"
+  },
+  "temporal_assignment": "nearest GLORYS target date inside centered 7-day window"
+}

argo/argo_profiles_on_grid.zarr/.zgroup

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+{
+  "zarr_format": 2
+}

argo/argo_profiles_on_grid.zarr/.zmetadata

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+{"metadata": {".zgroup": {"zarr_format": 2}, ".zattrs": {"created_by": "depth_recon.data.dataset_creation.export_dataset_geotiff.export_dataset_geotiff", "source_kind": "enriched", "temperature_units": "K", "temperature_stretch": {"name": "temperature_kelvin", "storage_dtype": "uint8", "minimum": 270.15, "maximum": 308.15, "units": "K", "nodata": 255, "valid_code_min": 0, "valid_code_max": 254, "valid_code_count": 255, "quantization_step": 0.14960629921259844, "max_abs_quantization_error": 0.07480314960629922, "decode": "minimum + code / 254 * (maximum - minimum)"}, "salinity_stretch": {"name": "salinity", "storage_dtype": "uint8", "minimum": 30.0, "maximum": 40.0, "units": "PSU", "nodata": 255, "valid_code_min": 0, "valid_code_max": 254, "valid_code_count": 255, "quantization_step": 0.03937007874015748, "max_abs_quantization_error": 0.01968503937007874, "decode": "minimum + code / 254 * (maximum - minimum)"}, "temporal_assignment": "nearest GLORYS target date inside centered 7-day window"}, "argo_psal_uint8/.zattrs": {"nodata": 255, "name": "salinity", "storage_dtype": "uint8", "minimum": 30.0, "maximum": 40.0, "units": "PSU", "valid_code_min": 0, "valid_code_max": 254, "valid_code_count": 255, "quantization_step": 0.03937007874015748, "max_abs_quantization_error": 0.01968503937007874, "decode": "minimum + code / 254 * (maximum - minimum)", "_ARRAY_DIMENSIONS": ["profile", "glorys_depth"]}, "argo_psal_uint8/.zarray": {"shape": [6608517, 50], "chunks": [50000, 50], "dtype": "|u1", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "argo_psal_valid/.zattrs": {"dtype": "bool", "_ARRAY_DIMENSIONS": ["profile", "glorys_depth"]}, "argo_psal_valid/.zarray": {"shape": [6608517, 50], "chunks": [50000, 50], "dtype": "|i1", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "argo_temp_kelvin_uint8/.zattrs": {"nodata": 255, "name": "temperature_kelvin", "storage_dtype": "uint8", "minimum": 270.15, "maximum": 308.15, "units": "K", "valid_code_min": 0, "valid_code_max": 254, "valid_code_count": 255, "quantization_step": 0.14960629921259844, "max_abs_quantization_error": 0.07480314960629922, "decode": "minimum + code / 254 * (maximum - minimum)", "_ARRAY_DIMENSIONS": ["profile", "glorys_depth"]}, "argo_temp_kelvin_uint8/.zarray": {"shape": [6608517, 50], "chunks": [50000, 50], "dtype": "|u1", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "argo_temp_valid/.zattrs": {"dtype": "bool", "_ARRAY_DIMENSIONS": ["profile", "glorys_depth"]}, "argo_temp_valid/.zarray": {"shape": [6608517, 50], "chunks": [50000, 50], "dtype": "|i1", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "glorys_depth/.zattrs": {"_ARRAY_DIMENSIONS": ["glorys_depth"]}, "glorys_depth/.zarray": {"shape": [50], "chunks": [50], "dtype": "<f4", "fill_value": "NaN", "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "grid_col/.zattrs": {"_ARRAY_DIMENSIONS": ["profile"]}, "grid_col/.zarray": {"shape": [6608517], "chunks": [50000], "dtype": "<i4", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "grid_row/.zattrs": {"_ARRAY_DIMENSIONS": ["profile"]}, "grid_row/.zarray": {"shape": [6608517], "chunks": [50000], "dtype": "<i4", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "latitude/.zattrs": {"_ARRAY_DIMENSIONS": ["profile"]}, "latitude/.zarray": {"shape": [6608517], "chunks": [50000], "dtype": "<f4", "fill_value": "NaN", "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "longitude/.zattrs": {"_ARRAY_DIMENSIONS": ["profile"]}, "longitude/.zarray": {"shape": [6608517], "chunks": [50000], "dtype": "<f4", "fill_value": "NaN", "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "profile/.zattrs": {"_ARRAY_DIMENSIONS": ["profile"]}, "profile/.zarray": {"shape": [6608517], "chunks": [103259], "dtype": "<i8", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "profile_date/.zattrs": {"_ARRAY_DIMENSIONS": ["profile"]}, "profile_date/.zarray": {"shape": [6608517], "chunks": [50000], "dtype": "<i4", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "profile_source_file/.zattrs": {"_ARRAY_DIMENSIONS": ["profile"]}, "profile_source_file/.zarray": {"shape": [6608517], "chunks": [50000], "dtype": "<U33", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "source_profile_idx/.zattrs": {"_ARRAY_DIMENSIONS": ["profile"]}, "source_profile_idx/.zarray": {"shape": [6608517], "chunks": [50000], "dtype": "<i4", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}, "target_date/.zattrs": {"_ARRAY_DIMENSIONS": ["profile"]}, "target_date/.zarray": {"shape": [6608517], "chunks": [50000], "dtype": "<i4", "fill_value": null, "order": "C", "filters": null, "dimension_separator": ".", "compressor": {"id": "blosc", "cname": "lz4", "clevel": 5, "shuffle": 1, "blocksize": 0}, "zarr_format": 2}}, "zarr_consolidated_format": 1}

argo/argo_profiles_on_grid.zarr/source_profile_idx/.zarray

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+{
+  "shape": [
+    6608517
+  ],
+  "chunks": [
+    50000
+  ],
+  "dtype": "<i4",
+  "fill_value": null,
+  "order": "C",
+  "filters": null,
+  "dimension_separator": ".",
+  "compressor": {
+    "id": "blosc",
+    "cname": "lz4",
+    "clevel": 5,
+    "shuffle": 1,
+    "blocksize": 0
+  },
+  "zarr_format": 2
+}

examples/open_with_xarray.py

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+from pathlib import Path
+
+import xarray as xr
+
+
+ROOT = Path(__file__).resolve().parents[1]
+ds = xr.open_zarr(ROOT / "data/argo_glors_ostia_ssh.zarr", consolidated=None)
+print(ds)

examples/subset_by_region_time.py

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+from pathlib import Path
+
+import pandas as pd
+import xarray as xr
+
+
+ROOT = Path(__file__).resolve().parents[1]
+profiles = pd.read_parquet(ROOT / "indices/profiles.parquet")
+subset = profiles[
+    (profiles["profile_date"] >= 20100101)
+    & (profiles["profile_date"] <= 20101231)
+    & (profiles["latitude"].between(30.0, 46.0))
+    & (profiles["longitude"].between(-6.0, 37.0))
+]
+
+ds = xr.open_zarr(ROOT / "data/argo_glors_ostia_ssh.zarr", consolidated=None)
+subset_ds = ds.sel(profile=subset["profile"].to_numpy())
+print(subset_ds)

metadata/citation.cff

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+cff-version: 1.2.0
+message: "If you use this dataset, cite DepthDif and the upstream EN4/ARGO, GLORYS, OSTIA, sea-level, and SSS products."
+title: "DepthDif aligned ARGO profile collocation dataset"
+authors:
+  - family-names: "DepthDif contributors"
+license: "other"

metadata/dataset_description.json

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+{
+  "name": "OceanVariableReconstruction",
+  "created_utc": "2026-05-21T06:26:40+00:00",
+  "zarr_path": "data/argo_glors_ostia_ssh.zarr",
+  "profile_count": 6637381,
+  "glorys_depth_count": 50,
+  "profile_date_range": {
+    "start": 20100101,
+    "end": 20240731,
+    "start_iso": "2010-01-01",
+    "end_iso": "2024-07-31"
+  },
+  "bbox": [
+    -999.99,
+    -999.99,
+    179.99985,
+    168.8678
+  ],
+  "variables": [
+    "glorys_depth",
+    "profile",
+    "argo_depth_qc_on_glorys_depth",
+    "argo_juld_qc",
+    "argo_position_qc",
+    "argo_potm_on_glorys_depth",
+    "argo_potm_qc_on_glorys_depth",
+    "argo_potm_valid_on_glorys_depth",
+    "argo_profile_depth_qc",
+    "argo_profile_potm_qc",
+    "argo_profile_psal_qc",
+    "argo_psal_on_glorys_depth",
+    "argo_psal_qc_on_glorys_depth",
+    "argo_psal_valid_on_glorys_depth",
+    "argo_temp_on_glorys_depth",
+    "argo_temp_qc_on_glorys_depth",
+    "argo_temp_valid_on_glorys_depth",
+    "glorys_bottomT",
+    "glorys_mlotst",
+    "glorys_siconc",
+    "glorys_sithick",
+    "glorys_so",
+    "glorys_temporal_status",
+    "glorys_thetao",
+    "glorys_uo",
+    "glorys_usi",
+    "glorys_vo",
+    "glorys_vsi",
+    "glorys_zos",
+    "latitude",
+    "longitude",
+    "ostia_analysed_sst",
+    "ostia_analysis_error",
+    "ostia_mask",
+    "ostia_sea_ice_fraction",
+    "ostia_temporal_status",
+    "profile_date",
+    "profile_idx",
+    "profile_juld",
+    "profile_source_file",
+    "sealevel_adt",
+    "sealevel_err_sla",
+    "sealevel_err_ugosa",
+    "sealevel_err_vgosa",
+    "sealevel_flag_ice",
+    "sealevel_sla",
+    "sealevel_temporal_status",
+    "sealevel_tpa_correction",
+    "sealevel_ugos",
+    "sealevel_ugosa",
+    "sealevel_vgos",
+    "sealevel_vgosa",
+    "sss_dos",
+    "sss_sea_ice_fraction",
+    "sss_sos",
+    "sss_temporal_status",
+    "valid_observed_depth_count"
+  ],
+  "zarr_attrs": {
+    "description": "ARGO profiles enriched with freshly collocated GLORYS, OSTIA, sea-level, and SSS fields.",
+    "created_by": "depth_recon.data.dataset_creation.export_aligned_argo.b_export_enriched_argo_profiles",
+    "created_utc": "2026-05-20T14:16:25+00:00",
+    "requested_date_range": {
+      "start_date": 20100101,
+      "end_date": 20240731
+    },
+    "batch_size": 2048,
+    "cache_size_per_worker": 8,
+    "max_profiles": null,
+    "workers": 12,
+    "path_policy": "No absolute source filesystem paths are stored. profile_source_file stores source filenames only.",
+    "profile_axis": "One row per valid EN4/ARGO profile passing date and coordinate filters.",
+    "depth_axis": "GLORYS native depth coordinate, in meters, loaded from the first readable GLORYS file.",
+    "source_file_summary": {
+      "argo": {
+        "file_count": 169,
+        "first_file": "EN.4.2.2.f.profiles.g10.201001.nc",
+        "last_file": "EN.4.2.2.f.profiles.g10.202407.nc"
+      },
+      "glorys": {
+        "file_count": 843,
+        "first_file": "mercatorglorys12v1_gl12_mean_20100101_R20100106.nc",
+        "last_file": "mercatorglorys12v1_gl12_mean_20260220_R20260225.nc",
+        "first_date": 20100101,
+        "last_date": 20260220
+      },
+      "ostia": {
+        "file_count": 5326,
+        "first_file": "20100101120000-UKMO-L4_GHRSST-SSTfnd-OSTIA-GLOB_REP-v02.0-fv02.0.nc",
+        "last_file": "20240731120000-UKMO-L4_GHRSST-SSTfnd-OSTIA-GLOB_REP-v02.0-fv02.0.nc",
+        "first_date": 20100101,
+        "last_date": 20240731
+      },
+      "sealevel": {
+        "file_count": 5326,
+        "first_file": "dt_global_allsat_phy_l4_20100101_20241016.nc",
+        "last_file": "dt_global_allsat_phy_l4_20240731_20250429.nc",
+        "first_date": 20100101,
+        "last_date": 20240731
+      },
+      "sss": {
+        "file_count": 5326,
+        "first_file": "dataset-sss-ssd-rep-daily_20100101T1200Z_P20241017T0000Z.nc",
+        "last_file": "dataset-sss-ssd-rep-daily_20240731T1200Z_P20260101T0000Z.nc",
+        "first_date": 20100101,
+        "last_date": 20240731
+      }
+    },
+    "source_metadata": {
+      "argo": {
+        "provider": "UK Met Office Hadley Centre",
+        "product": "EN4.2.2 profile archive",
+        "role": "In-situ profile observations projected onto the GLORYS depth grid.",
+        "file_count": 169,
+        "representative_file": "EN.4.2.2.f.profiles.g10.201001.nc",
+        "first_file": "EN.4.2.2.f.profiles.g10.201001.nc",
+        "last_file": "EN.4.2.2.f.profiles.g10.202407.nc",
+        "global_attrs": {
+          "licence": "EN4 is distributed under the Non Commercial Government Licence: http://www.nationalarchives.gov.uk/doc/non-commercial-government-licence/version/2/. The data are available for non-commercial use with attribution to the data providers, please see the product website (see global attribute: references) for terms and conditions.",
+          "references": "Website and paper: https://www.metoffice.gov.uk/hadobs/en4/; Good, S. A., M. J. Martin and N. A. Rayner, 2013. EN4: quality controlled ocean temperature and salinity profiles and monthly objective analyses with uncertainty estimates, Journal of Geophysical Research: Oceans, 118, 6704-6716, doi:10.1002/2013JC009067",
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+          "references": "http://www.mercator-ocean.fr",
+          "comment": "CMEMS product",
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+          "forecast_range": "2-day_forecast",
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+            "dtype": "float64",
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+              "long_name": "Depth",
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+              "axis": "Z"
+            }
+          },
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+              "latitude"
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+              "unit_long": "Degrees North",
+              "long_name": "Latitude",
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+          },
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+              "unit_long": "Degrees East",
+              "long_name": "Longitude",
+              "standard_name": "longitude",
+              "axis": "X"
+            }
+          }
+        }
+      },
+      "ostia": {
+        "provider": "Copernicus Marine Service / UK Met Office OSTIA",
+        "product": "SST_GLO_SST_L4_REP_OBSERVATIONS_010_011",
+        "role": "Daily analysed sea-surface temperature and mask fields sampled at profile points.",
+        "file_count": 5326,
+        "representative_file": "20100101120000-UKMO-L4_GHRSST-SSTfnd-OSTIA-GLOB_REP-v02.0-fv02.0.nc",
+        "first_file": "20100101120000-UKMO-L4_GHRSST-SSTfnd-OSTIA-GLOB_REP-v02.0-fv02.0.nc",
+        "last_file": "20240731120000-UKMO-L4_GHRSST-SSTfnd-OSTIA-GLOB_REP-v02.0-fv02.0.nc",
+        "global_attrs": {
+          "Conventions": "CF-1.4, ACDD-1.3",
+          "summary": "A merged, multi-sensor L4 Foundation SST product",
+          "references": "Donlon, C.J., Martin, M., Stark, J.D., Roberts-Jones, J., Fiedler, E., Wimmer, W., 2011. The Operational Sea Surface Temperature and Sea Ice Analysis (OSTIA). Remote Sensing of the Environment",
+          "institution": "UKMO",
+          "history": "Created from sst.nc; obs_anal.nc; seaice.nc",
+          "comment": "WARNING Some applications are unable to properly handle signed byte values. If values are encountered > 127, please subtract 256 from this reported value",
+          "license": "These data are available free of charge under the CMEMS data policy",
+          "id": "OSTIA-UKMO-L4-GLOB-v2.0",
+          "naming_authority": "org.ghrsst",
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+          "date_created": "20190818T061207Z",
+          "start_time": "20100101T000000Z",
+          "time_coverage_start": "20100101T000000Z",
+          "stop_time": "20100102T000000Z",
+          "time_coverage_end": "20100102T000000Z",
+          "file_quality_level": 3,
+          "Metadata_Conventions": "Unidata Observation Dataset v1.0",
+          "metadata_link": "http://podaac.jpl.nasa.gov/ws/metadata/dataset?format=gcmd&shortName=UKMO-L4HRfnd-GLOB-OSTIA",
+          "keywords": "Oceans > Ocean Temperature > Sea Surface Temperature",
+          "keywords_vocabulary": "NASA Global Change Master Directory (GCMD) Science Keywords",
+          "standard_name_vocabulary": "NetCDF Climate and Forecast (CF) Metadata Convention",
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+          "northernmost_latitude": 90.0,
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+          "geospatial_lat_units": "degrees_north",
+          "geospatial_lat_resolution": 0.05000000074505806,
+          "geospatial_lon_units": "degrees_east",
+          "geospatial_lon_resolution": 0.05000000074505806,
+          "acknowledgment": "Please acknowledge the use of these data with the following statement: These data were provided by GHRSST, Met Office and CMEMS",
+          "creator_name": "Met Office as part of CMEMS",
+          "creator_email": "servicedesk.cmems@mercator-ocean.eu",
+          "creator_url": "http://marine.copernicus.eu",
+          "project": "Group for High Resolution Sea Surface Temperature",
+          "publisher_name": "GHRSST Project Office",
+          "publisher_url": "http://www.ghrsst.org",
+          "publisher_email": "ghrsst-po@nceo.ac.uk",
+          "processing_level": "L4",
+          "cdm_data_type": "grid",
+          "title": "Global SST & Sea Ice Analysis, L4 OSTIA, 0.05 deg daily (METOFFICE-GLO-SST-L4-REP-OBS-SST-V2)",
+          "sensor": "AMSR2, AMSRE, GOES<13,16>, SEVIRI, SLSTRA, ATSR<1,2>, AATSR, AVHRR<07,09,11,12,14,15,16,17,18,19,MTA>, GMI, VIIRS<NPP,N20>",
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+        },
+        "dimensions": {
+          "time": 1,
+          "lat": 3600,
+          "lon": 7200
+        },
+        "variables": {
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+            "dims": [
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+              "lat",
+              "lon"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "long_name": "analysed sea surface temperature",
+              "standard_name": "sea_surface_foundation_temperature",
+              "units": "kelvin",
+              "valid_min": -300,
+              "valid_max": 4500,
+              "source": "AMSR2-REMSS-L2P-v2.0, AMSRE-REMSS-L2P-v2.0, TMI-REMSS-L2P-v04, GOES13-OSISAF-L3C-v2.0, SEVIRI-OSISAF-L3C-v2.0, SLSTRA-C3S-L3C-v2.0, ATSR<1,2>-ESACCI-L3U-v2.0, AATSR-ESACCI-L3U-v2.0, AVHRR<06,07,08,09,10,11,12,14,15,16,17,18,19>-ESACCI-L3U-v2.0, AVHRRMTA-ESACCI-L3U-v2.0, GMI-REMSS-L3U-v2.0, VIIRS-OSPO-L3U-v2.0",
+              "reference": "C.J. Donlon, M. Martin,J.D. Stark, J. Roberts-Jones, E. Fiedler, W. Wimmer. The operational sea surface temperature and sea ice analysis (OSTIA) system. Remote Sensing Environ., 116 (2012), pp. 140-158 http://dx.doi.org/10.1016/j.rse.2010.10.017",
+              "comment": "OSTIA foundation SST"
+            }
+          },
+          "analysis_error": {
+            "dims": [
+              "time",
+              "lat",
+              "lon"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "long_name": "estimated error standard deviation of analysed_sst",
+              "standard_name": "sea_surface_foundation_temperature standard_error",
+              "units": "kelvin",
+              "valid_min": 0,
+              "valid_max": 32767,
+              "comment": "OSTIA foundation SST analysis standard deviation error"
+            }
+          },
+          "sea_ice_fraction": {
+            "dims": [
+              "time",
+              "lat",
+              "lon"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "long_name": "sea ice area fraction",
+              "standard_name": "sea_ice_area_fraction",
+              "units": "1",
+              "valid_min": 0,
+              "valid_max": 100,
+              "source": "EUMETSAT OSI-SAF",
+              "comment": "Sea ice area fraction"
+            }
+          },
+          "mask": {
+            "dims": [
+              "time",
+              "lat",
+              "lon"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "long_name": "land sea ice lake bit mask",
+              "valid_min": 1,
+              "valid_max": 31,
+              "flag_masks": [
+                1,
+                2,
+                4,
+                8,
+                16
+              ],
+              "flag_meanings": "water land optional_lake_surface sea_ice optional_river_surface",
+              "source": "NAVOCEANO_landmask_v1.0 EUMETSAT_OSI-SAF_icemask ARCLake_lakemask",
+              "comment": "Land/ open ocean/ sea ice lake mask"
+            }
+          },
+          "time": {
+            "dims": [
+              "time"
+            ],
+            "dtype": "int32",
+            "attrs": {
+              "long_name": "reference time of sst field",
+              "standard_name": "time",
+              "axis": "T",
+              "units": "seconds since 1981-01-01 00:00:00",
+              "comment": ""
+            }
+          },
+          "lat": {
+            "dims": [
+              "lat"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "standard_name": "latitude",
+              "long_name": "latitude",
+              "units": "degrees_north",
+              "valid_min": -90.0,
+              "valid_max": 90.0,
+              "axis": "Y",
+              "comment": "Latitude geographical coordinates,WGS84 projection"
+            }
+          },
+          "lon": {
+            "dims": [
+              "lon"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "standard_name": "longitude",
+              "long_name": "longitude",
+              "units": "degrees_east",
+              "valid_min": -180.0,
+              "valid_max": 180.0,
+              "axis": "X",
+              "comment": "Longitude geographical coordinates,WGS84 projection"
+            }
+          }
+        }
+      },
+      "sealevel": {
+        "provider": "Copernicus Marine Service",
+        "product": "SEALEVEL_GLO_PHY_L4_MY_008_047",
+        "dataset_id": "cmems_obs-sl_glo_phy-ssh_my_allsat-l4-duacs-0.125deg_P1D",
+        "role": "Daily sea-level, geostrophic current, and ice-flag fields sampled at profile points.",
+        "file_count": 5326,
+        "representative_file": "dt_global_allsat_phy_l4_20100101_20241016.nc",
+        "first_file": "dt_global_allsat_phy_l4_20100101_20241016.nc",
+        "last_file": "dt_global_allsat_phy_l4_20240731_20250429.nc",
+        "global_attrs": {
+          "Conventions": "CF-1.6",
+          "Metadata_Conventions": "Unidata Dataset Discovery v1.0",
+          "cdm_data_type": "Grid",
+          "comment": "Sea Surface Height measured by Altimetry and derived variables",
+          "contact": "servicedesk.cmems@mercator-ocean.eu",
+          "creator_email": "servicedesk.cmems@mercator-ocean.eu",
+          "creator_name": "CMEMS - Sea Level Thematic Assembly Center",
+          "creator_url": "http://marine.copernicus.eu",
+          "institution": "CLS, CNES",
+          "keywords": "Oceans > Ocean Topography > Sea Surface Height",
+          "keywords_vocabulary": "NetCDF COARDS Climate and Forecast Standard Names",
+          "license": "http://marine.copernicus.eu/web/27-service-commitments-and-licence.php",
+          "processing_level": "L4",
+          "product_version": "vNov2024",
+          "project": "COPERNICUS MARINE ENVIRONMENT MONITORING SERVICE (CMEMS)",
+          "references": "http://marine.copernicus.eu",
+          "software_version": "8.0_MIOST_DT2024_baseline",
+          "source": "Altimetry measurements",
+          "ssalto_duacs_comment": "The reference mission used for the altimeter inter-calibration processing is Topex/Poseidon between 1993-01-01 and 2002-04-23, Jason-1 between 2002-04-24 and 2008-10-18, OSTM/Jason-2 between 2008-10-19 and 2016-06-25, Jason-3 since 2016-06-25.",
+          "standard_name_vocabulary": "NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table v37",
+          "summary": "SSALTO/DUACS Delayed-Time Level-4 sea surface height and derived variables measured by multi-satellite altimetry observations over Global Ocean.",
+          "title": "DT merged all satellites Global Ocean Gridded SSALTO/DUACS Sea Surface Height L4 product and derived variables",
+          "date_created": "2024-10-16T16:52:55Z",
+          "history": "2024-10-16 16:52:55Z: Creation",
+          "geospatial_lat_max": 89.9375,
+          "geospatial_lat_min": -89.9375,
+          "geospatial_lat_resolution": 0.125,
+          "geospatial_lat_units": "degrees_north",
+          "geospatial_lon_max": 179.9375,
+          "geospatial_lon_min": -179.9375,
+          "geospatial_lon_resolution": 0.125,
+          "geospatial_lon_units": "degrees_east",
+          "geospatial_vertical_max": 0.0,
+          "geospatial_vertical_min": 0.0,
+          "geospatial_vertical_positive": "down",
+          "geospatial_vertical_resolution": "point",
+          "geospatial_vertical_units": "m",
+          "time_coverage_duration": "P1D",
+          "time_coverage_resolution": "P1D",
+          "time_coverage_end": "2010-01-01T12:00:00Z",
+          "time_coverage_start": "2009-12-31T12:00:00Z",
+          "platform": "Jason-1 Interleaved, OSTM/Jason-2, Envisat"
+        },
+        "dimensions": {
+          "latitude": 1440,
+          "nv": 2,
+          "longitude": 2880,
+          "time": 1
+        },
+        "variables": {
+          "sla": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "ancillary_variables": "err_sla",
+              "comment": "The sea level anomaly is the sea surface height above mean sea surface; it is referenced to the [1993, 2012] period; see the product user manual for details",
+              "grid_mapping": "crs",
+              "long_name": "Sea level anomaly",
+              "standard_name": "sea_surface_height_above_sea_level",
+              "units": "m"
+            }
+          },
+          "err_sla": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "comment": "The formal mapping error represents a purely theoretical mapping error. It mainly traduces errors induced by the constellation sampling capability and consistency with the spatial/temporal scales considered, as described in Le Traon et al (1998) or Ducet et al (2000)",
+              "grid_mapping": "crs",
+              "long_name": "Formal mapping error",
+              "standard_name": "sea_surface_height_above_sea_level standard_error",
+              "units": "m"
+            }
+          },
+          "ugosa": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "ancillary_variables": "err_ugosa",
+              "comment": "The geostrophic velocity anomalies are referenced to the [1993, 2012] period",
+              "grid_mapping": "crs",
+              "long_name": "Geostrophic velocity anomalies: zonal component",
+              "standard_name": "surface_geostrophic_eastward_sea_water_velocity_assuming_sea_level_for_geoid",
+              "units": "m/s"
+            }
+          },
+          "err_ugosa": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "comment": "The formal mapping error represents a purely theoretical mapping error. It mainly traduces errors induced by the constellation sampling capability and consistency with the spatial/temporal scales considered, as described in Le Traon et al (1998) or Ducet et al (2000)",
+              "grid_mapping": "crs",
+              "long_name": "Formal mapping error on zonal geostrophic velocity anomalies",
+              "standard_name": "surface_geostrophic_eastward_sea_water_velocity_assuming_sea_level_for_geoid standard_error",
+              "units": "m/s"
+            }
+          },
+          "vgosa": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "ancillary_variables": "err_vgosa",
+              "comment": "The geostrophic velocity anomalies are referenced to the [1993, 2012] period",
+              "grid_mapping": "crs",
+              "long_name": "Geostrophic velocity anomalies: meridian component",
+              "standard_name": "surface_geostrophic_northward_sea_water_velocity_assuming_sea_level_for_geoid",
+              "units": "m/s"
+            }
+          },
+          "err_vgosa": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "comment": "The formal mapping error represents a purely theoretical mapping error. It mainly traduces errors induced by the constellation sampling capability and consistency with the spatial/temporal scales considered, as described in Le Traon et al (1998) or Ducet et al (2000)",
+              "grid_mapping": "crs",
+              "long_name": "Formal mapping error on meridional geostrophic velocity anomalies",
+              "standard_name": "surface_geostrophic_northward_sea_water_velocity_assuming_sea_level_for_geoid standard_error",
+              "units": "m/s"
+            }
+          },
+          "adt": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "comment": "The absolute dynamic topography is the sea surface height above geoid; the adt is obtained as follows: adt=sla+mdt where mdt is the mean dynamic topography; see the product user manual for details",
+              "grid_mapping": "crs",
+              "long_name": "Absolute dynamic topography",
+              "standard_name": "sea_surface_height_above_geoid",
+              "units": "m"
+            }
+          },
+          "ugos": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "grid_mapping": "crs",
+              "long_name": "Absolute geostrophic velocity: zonal component",
+              "standard_name": "surface_geostrophic_eastward_sea_water_velocity",
+              "units": "m/s"
+            }
+          },
+          "vgos": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "grid_mapping": "crs",
+              "long_name": "Absolute geostrophic velocity: meridian component",
+              "standard_name": "surface_geostrophic_northward_sea_water_velocity",
+              "units": "m/s"
+            }
+          },
+          "flag_ice": {
+            "dims": [
+              "time",
+              "latitude",
+              "longitude"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "long_name": "Ice Flag for a 15% criterion of ice concentration",
+              "flag_meanings": "data_on_sea data_on_ice",
+              "flag_values": [
+                0,
+                1
+              ],
+              "standard_name": "status_flag",
+              "comment": "Ice Flag based on CDR OSI SAF V3.0 products until 2020 (OSI-450_a), ICDR OSI SAF V3.0 (Interim products) from 2021 (OSI-430-a) (Lavergne et al., 2019). The flag corresponds to the 15% sea ice concentration.",
+              "grid_mapping": "crs"
+            }
+          },
+          "tpa_correction": {
+            "dims": [
+              "time"
+            ],
+            "dtype": "float64",
+            "attrs": {
+              "long_name": "TOPEX-A instrumental drift correction derived from altimetry and tide gauges global comparisons (WCRP Sea Level Budget Group, 2018)",
+              "standard_name": "sea_surface_height_above_sea_level",
+              "comment": "NOT IMPLEMENTED YET: This correction is not yet available for the current product version. This field will be updated once this correction is producted. This variable can be added to the gridded SLA to correct for the observed instrumental drift during the lifetime of the TOPEX-A mission (the correction is null after this period). This is a global correction to be added a posteriori (and not before) on the global mean sea level estimate derived from the gridded sea level map. It can be applied at regional or local scale as a best estimate (better than no correction, since the regional variation of the instrumental drift is unknown). See product manual for more details.",
+              "units": "m"
+            }
+          },
+          "time": {
+            "dims": [
+              "time"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "long_name": "Time",
+              "calendar": "gregorian",
+              "axis": "T",
+              "standard_name": "time",
+              "units": "days since 1950-01-01 00:00:00"
+            }
+          },
+          "latitude": {
+            "dims": [
+              "latitude"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "long_name": "Latitude",
+              "valid_max": 89.9375,
+              "axis": "Y",
+              "standard_name": "latitude",
+              "bounds": "lat_bnds",
+              "units": "degrees_north",
+              "valid_min": -89.9375
+            }
+          },
+          "longitude": {
+            "dims": [
+              "longitude"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "axis": "X",
+              "long_name": "Longitude",
+              "standard_name": "longitude",
+              "units": "degrees_east",
+              "valid_max": 179.9375,
+              "valid_min": -179.9375,
+              "bounds": "lon_bnds"
+            }
+          }
+        }
+      },
+      "sss": {
+        "provider": "Copernicus Marine Service / CNR",
+        "product": "MULTIOBS_GLO_PHY_S_SURFACE_MYNRT_015_013",
+        "dataset_id": "cmems_obs-mob_glo_phy-sss_my_multi_P1D",
+        "role": "Daily sea-surface salinity, density, and sea-ice fields sampled at profile points.",
+        "file_count": 5326,
+        "representative_file": "dataset-sss-ssd-rep-daily_20100101T1200Z_P20241017T0000Z.nc",
+        "first_file": "dataset-sss-ssd-rep-daily_20100101T1200Z_P20241017T0000Z.nc",
+        "last_file": "dataset-sss-ssd-rep-daily_20240731T1200Z_P20260101T0000Z.nc",
+        "global_attrs": {
+          "Conventions": "CF-1.7",
+          "title": "Global Analysed Sea Surface Salinity and Density",
+          "references": "Buongiorno Nardelli, B., R. Droghei, and R. Santoleri (2016), Multi-dimensional interpolation of SMOS sea surface salinity with surface temperature and in situ salinity data, Remote Sens. Environ., doi:10.1016/j.rse.2015.12.052.;Sammartino, M., Aronica, S., Santoleri, S., and B. Buongiorno Nardelli, (2022), Retrieving Mediterranean Sea Surface Salinity Distribution and Interannual Trends from Multi-Sensor Satellite and In Situ Data, Remote Sens., doi.org/10.3390/rs14102502.",
+          "institution": "CNR",
+          "contact": "servicedesk.cmems@mercator-ocean.eu",
+          "netcdf_version_id": "4.9.3-development of Jun  4 2023 14:13:36",
+          "creation_date": "Thu 17 Oct 2024 10:57:11",
+          "product_version": "1.1",
+          "grid_resolution": "0.125 degrees",
+          "software_version": "SSS/SSD HR Processor v1.1",
+          "westernmost_longitude": "0.0625",
+          "easternmost_longitude": "359.9375",
+          "southernmost_latitude": "-89.9375",
+          "northernmost_latitude": "89.9375",
+          "Scaling_Equation": "(scale_factor*data) + add_offset",
+          "license": "free registration at Copernicus Marine Service (http://marine.copernicus.eu/web/56-user-registration-form.php)"
+        },
+        "dimensions": {
+          "time": 1,
+          "depth": 1,
+          "lat": 1440,
+          "lon": 2880
+        },
+        "variables": {
+          "sos": {
+            "dims": [
+              "time",
+              "depth",
+              "lat",
+              "lon"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "long_name": "sea surface salinity",
+              "standard_name": "sea_surface_salinity",
+              "units": ".001"
+            }
+          },
+          "dos": {
+            "dims": [
+              "time",
+              "depth",
+              "lat",
+              "lon"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "long_name": "sea surface density",
+              "standard_name": "sea_surface_density",
+              "units": "kg/m3"
+            }
+          },
+          "sea_ice_fraction": {
+            "dims": [
+              "time",
+              "depth",
+              "lat",
+              "lon"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "long_name": "sea ice area fraction",
+              "standard_name": "sea_ice_area_fraction",
+              "units": "percent"
+            }
+          },
+          "time": {
+            "dims": [
+              "time"
+            ],
+            "dtype": "int32",
+            "attrs": {
+              "units": "hours since 1950-01-01 00:00:00",
+              "long_name": "time",
+              "standard_name": "time",
+              "calendar": "Gregorian",
+              "axis": "T",
+              "comment": "Nominal time of Level 4 analysis"
+            }
+          },
+          "depth": {
+            "dims": [
+              "depth"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "standard_name": "depth",
+              "units": "m",
+              "axis": "Z",
+              "positive": "down"
+            }
+          },
+          "lat": {
+            "dims": [
+              "lat"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "units": "degrees_north",
+              "axis": "Y",
+              "standard_name": "latitude"
+            }
+          },
+          "lon": {
+            "dims": [
+              "lon"
+            ],
+            "dtype": "float32",
+            "attrs": {
+              "units": "degrees_east",
+              "axis": "X",
+              "standard_name": "longitude"
+            }
+          }
+        }
+      }
+    },
+    "processing": {
+      "argo_depth_projection": "ARGO TEMP, POTM_CORRECTED, and PSAL_CORRECTED are interpolated onto the GLORYS depth coordinate with duplicate-depth collapse and the existing GLORYS depth cutoff rules.",
+      "spatial_collocation": "Continuous gridded fields use xarray linear interpolation at profile latitude/longitude. Categorical variables use nearest-neighbor sampling.",
+      "temporal_collocation": "All gridded fields use the nearest available source file in time. No temporal interpolation is applied between bracketing source files.",
+      "argo_quality_flags": "Optional EN4/ARGO QC variables are stored as int8 QC codes. Depth-level QC variables are projected onto the GLORYS depth coordinate by keeping the exact source-depth code where possible, otherwise the worst code from the bracketing source levels. A value of -1 means unavailable or unsupported at that target depth.",
+      "longitude_handling": "Profile longitudes are normalized to [-180, 180), then converted to 0..360 only when the source grid uses non-negative longitudes."
+    },
+    "status_values": {
+      "0": "nearest_or_exact",
+      "1": "nearest_edge",
+      "2": "missing"
+    },
+    "primary_external_sea_surface_height": "sealevel_adt",
+    "primary_external_sea_surface_salinity": "sss_sos",
+    "primary_external_sea_surface_density": "sss_dos",
+    "known_source_notes": {
+      "sealevel_tpa_correction": "The Copernicus source metadata marks this field as not implemented in the current product version, so values may be NaN."
+    }
+  },
+  "includes_geotiff_assets": true
+}

metadata/stac-item.json

@@ -0,0 +1,76 @@
+{
+  "stac_version": "1.0.0",
+  "type": "Feature",
+  "id": "OceanVariableReconstruction",
+  "bbox": [
+    -999.99,
+    -999.99,
+    179.99985,
+    168.8678
+  ],
+  "geometry": {
+    "type": "Polygon",
+    "coordinates": [
+      [
+        [
+          -999.99,
+          -999.99
+        ],
+        [
+          179.99985,
+          -999.99
+        ],
+        [
+          179.99985,
+          168.8678
+        ],
+        [
+          -999.99,
+          168.8678
+        ],
+        [
+          -999.99,
+          -999.99
+        ]
+      ]
+    ]
+  },
+  "properties": {
+    "datetime": null,
+    "start_datetime": "2010-01-01",
+    "end_datetime": "2024-07-31",
+    "created": "2026-05-21T06:26:40+00:00"
+  },
+  "assets": {
+    "zarr": {
+      "href": "data/argo_glors_ostia_ssh.zarr",
+      "type": "application/vnd+zarr",
+      "title": "Aligned ARGO profile Zarr"
+    },
+    "profiles": {
+      "href": "indices/profiles.parquet",
+      "type": "application/x-parquet",
+      "title": "Profile index"
+    },
+    "variables": {
+      "href": "indices/variables.parquet",
+      "type": "application/x-parquet",
+      "title": "Variable index"
+    },
+    "rasters": {
+      "href": "rasters/",
+      "type": "image/tiff; application=geotiff",
+      "title": "Root-level GeoTIFF raster store"
+    },
+    "compact_argo": {
+      "href": "argo/argo_profiles_on_grid.zarr",
+      "type": "application/vnd+zarr",
+      "title": "Compact grid-indexed ARGO Zarr"
+    },
+    "manifest": {
+      "href": "manifest.yaml",
+      "type": "application/x-yaml",
+      "title": "GeoTIFF export manifest"
+    }
+  }
+}