Download public releases
Use the repository record for the version, files, license, and citation associated with each release. The links below provide access to published GRID project outputs.
| Product | Access | Release date | Download |
|---|---|---|---|
| U.S. river salinization and alkalinization: 226 sites | Data and code on Zenodo · Details | May 15, 2023 | ZIP, approximately 56 MB |
| ROcD-nGoM: northern Gulf of Mexico river–ocean database | Data on Zenodo · Details | November 17, 2023 | ZIP, approximately 2.3 GB |
| River weathering data and machine-learning workflows | Data and code on Zenodo · Details | August 8, 2026 | ZIP, approximately 26.8 MB |
These releases represent selected outputs, not a download of the full GRID inventory. For other holdings or a specific data need, contact the project team with the variables, region, time period, and intended use. See Coverage, Methods, and Data Use before combining products.
Examples of watershed attributes
The table illustrates the kinds of environmental attributes relevant to GRID research. It is not a complete dictionary of the 139 watershed properties in the current inventory or a guarantee of availability at each site. Units and aggregation periods can differ by source and release; use the definitions accompanying your selected dataset.
| Attribute example | Example unit | Category |
|---|---|---|
| Runoff | mm per month | Hydrology |
| Soil moisture | m³ per m³ | Hydrology |
| Temperature | °C | Climate |
| Precipitation | mm per month | Climate |
| Watershed area | km² | Geomorphology |
| Erosion rate | mm per year | Geomorphology |
| Elevation | m | Geomorphology |
| Slope | degrees | Geomorphology |
| Aspect | degrees | Geomorphology |
| Soil organic carbon | g per kg | Soil chemistry |
| Soil pH | pH | Soil chemistry |
| Evaporite | % | Geology |
| Carbonate sediment | % | Geology |
| Siliciclastic sediment | % | Geology |
| Pyroclastic sediment | % | Geology |
| Mixed sediment | % | Geology |
| Unconsolidated sediment | % | Geology |
| Igneous basic | % | Geology |
| Igneous intermediate | % | Geology |
| Igneous acid | % | Geology |
| Metamorphic | % | Geology |
| Impervious surface area | % | Land use |
| Population density | people per km² | Land use |
| Cultivated vegetation | % | Land use |
| Urban | % | Land use |
| Trees | % | Land cover |
| Shrubs | % | Land cover |
| Herbaceous vegetation | % | Land cover |
| Flooded vegetation | % | Land cover |
| Snow and ice | % | Land cover |
| Barren | % | Land cover |
| Water | % | Land cover |
Percentage-based attributes require the source’s spatial denominator and class definitions. Soil properties require depth information; climate and hydrology fields require their time period and aggregation method. Lithology labels above retain the example source terminology.