Use exact approach from dynamical-org/notebooks

- Use latest.zarr URLs instead of version-specific paths
- Add .zarr extension to all dataset URLs
- Use chunks=None parameter (no dask chunking)
- Upgrade to xarray>=2025.3.0 and zarr>=3.0.8
- Match exact package versions from notebooks repo

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -17,30 +17,30 @@ logging.basicConfig(
 )
 logger = logging.getLogger(__name__)
 
-# Catalog configuration with correct zarr store URLs
+# Catalog configuration - using latest.zarr URLs as per dynamical-org/notebooks
 CATALOG = {
     "NOAA GFS Analysis (Hourly)": {
-        "url": "https://data.dynamical.org/noaa/gfs/analysis-hourly/[email protected]",
+        "url": "https://data.dynamical.org/noaa/gfs/analysis-hourly/latest.zarr?email=treesixtyweather@gmail.com",
         "type": "analysis",
         "variables": ["temperature_2m", "precipitation", "wind_u_10m", "wind_v_10m", "mean_sea_level_pressure"]
     },
     "NOAA GFS Forecast": {
-        "url": "https://data.dynamical.org/noaa/gfs/forecast/[email protected]",
+        "url": "https://data.dynamical.org/noaa/gfs/forecast/latest.zarr?email=treesixtyweather@gmail.com",
         "type": "forecast",
         "variables": ["temperature_2m", "precipitation", "wind_u_10m", "wind_v_10m", "mean_sea_level_pressure"]
     },
     "NOAA GEFS Analysis": {
-        "url": "https://data.dynamical.org/noaa/gefs/analysis/[email protected]",
+        "url": "https://data.dynamical.org/noaa/gefs/analysis/latest.zarr?email=treesixtyweather@gmail.com",
         "type": "analysis",
         "variables": ["temperature_2m", "precipitation", "wind_u_10m", "wind_v_10m"]
     },
     "NOAA GEFS Forecast (35-day)": {
-        "url": "https://data.dynamical.org/noaa/gefs/forecast-35-day/[email protected]",
+        "url": "https://data.dynamical.org/noaa/gefs/forecast-35-day/latest.zarr?email=treesixtyweather@gmail.com",
         "type": "forecast",
         "variables": ["temperature_2m", "precipitation", "wind_u_10m", "wind_v_10m"]
     },
     "NOAA HRRR Forecast (48-hour)": {
-        "url": "https://data.dynamical.org/noaa/hrrr/forecast-48-hour/[email protected]",
+        "url": "https://data.dynamical.org/noaa/hrrr/forecast-48-hour/latest.zarr?email=treesixtyweather@gmail.com",
         "type": "forecast",
         "variables": ["temperature_2m", "precipitation", "wind_u_10m", "wind_v_10m"]
     }
@@ -61,16 +61,10 @@ def load_dataset(dataset_name, use_cache=True):
         url = CATALOG[dataset_name]["url"]
         logger.info(f"Opening zarr store at: {url}")
 
-        # Open zarr store (using zarr v2)
-        # Try consolidated first, then fall back to non-consolidated
-        try:
-            logger.info("Trying to open with consolidated=True")
-            ds = xr.open_zarr(url, consolidated=True)
-            logger.info(f"Successfully opened with consolidated metadata")
-        except KeyError:
-            logger.info("No consolidated metadata, trying consolidated=False")
-            ds = xr.open_zarr(url, consolidated=False)
-            logger.info(f"Successfully opened without consolidated metadata")
+        # Open zarr store - using approach from dynamical-org/notebooks
+        logger.info("Opening zarr store with chunks=None")
+        ds = xr.open_zarr(url, chunks=None)
+        logger.info(f"Successfully opened zarr store")
         logger.info(f"Dataset dimensions: {dict(ds.dims)}")
         logger.info(f"Dataset variables: {list(ds.data_vars)}")
         logger.info(f"Dataset coordinates: {list(ds.coords)}")

requirements.txt

@@ -1,9 +1,9 @@
 gradio==5.47.2
-xarray<2025.1.0
-zarr<3.0.0
+xarray>=2025.3.0
+zarr>=3.0.8
 fsspec
-aiohttp
-s3fs
+aiohttp>=3.11.14
+s3fs>=2025.3.0
 pandas
 numpy
 plotly