# HydroRIVERS

This folder contains the HydroRIVERS v10 Europe shapefile bundle and the GeoParquet export used by the project.

## Files

- `HydroRIVERS_v10_eu_shp/` - source ESRI Shapefile bundle
- `HydroRIVERS_v10_eu.geoparquet` - converted GeoParquet output
- `HydroRIVERS_TechDoc_v10.pdf` - upstream technical documentation

## Conversion

The GeoParquet file can be regenerated with:

```bash
uv run python data/hydrorivers/convert_to_geoparquet.py
```

The script reads the shapefile from `HydroRIVERS_v10_eu_shp/HydroRIVERS_v10_eu.shp` and writes `HydroRIVERS_v10_eu.geoparquet` in the same folder.