digital database | Ag Data Commons

Walnut Gulch Experimental Watershed, Arizona (Precipitation)

NAL Geospatial Catalog

An extensive precipitation database at the 149 km2 Walnut Gulch Experimental Watershed (WGEW) has been developed over the past 53 years with the first records starting in August 1953 and continuing to the present.

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Walnut Gulch Experimental Watershed, Arizona (Runoff)

NAL Geospatial Catalog

The Walnut Gulch Experimental Watershed (WGEW) runoff database has the longest period of record of runoff in the world for a semiarid location, with data collection beginning in 1953. Runoff occurs at Walnut Gulch primarily as a result of convective thunderstorms during the months of July through September. Runoff volume and flow duration are correlated with drainage area as a result of the limited areal extent of runoff producing rainfall and transmission losses or infiltration of the flood wave into the channel alluvium.

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UAS User Log

The UAS User Log is a server-based, digital logbook that is accessible through any web browser on internet-connected devices. It is an outcome of multi-state teams working together to develop a common protocol for unmanned aircraft systems (UAS, or drones) operation for purposes such as research/production, spray application, and any other activity of interest.

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FSGeodata Clearinghouse

The USDA Forest Service Geodata Clearinghouse is an online collection of digital data related to forest resources. Through the Clearinghouse you can find datasets related to forests and grasslands, including boundaries and ownership, natural resources, roads and trails, as well as datasets related to State and private forested areas, including insect and disease threat and surface water importance. You can also find downloadable map products, raster data, and links to other sources of forest resource information.

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