Data

Observations of irrigated agricultural land within the McMullen Valley Groundwater Basin in Arizona. Crops were verified in situ four times in 2024 first on May 2nd, then on Aug 30th, Sep 10th, and finally on Dec 4th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery...

Observations of irrigated agricultural land within the Sierra Vista Groundwater Subbasin of the Upper San Pedro Groundwater Basin in Arizona. Crops were verified in situ once in 2024 on Sep 11th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery for Arizona and...

Observations of irrigated agricultural land within the Harquahala Irrigation Non-Expansion Area Groundwater Basin in Arizona. Crops were verified in situ twice in 2024, first on May 15th and again on Aug 29th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery for...

Observations of irrigated agricultural land within the Douglas Active Management Area Groundwater Basin in Arizona. Crops were verified in situ twice in 2024, first on May 28th and again on Aug 9th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery for Arizona and...

Observations of irrigated agricultural land within the Hualapai Valley Irrigation Non-Expansion Area Groundwater Basin in Arizona. Crops were verified in situ twice in 2024, first on Jun 6th and again on Aug 13th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery for...

Observations of irrigated agricultural land within the Ranegras Plain Groundwater Basin in Arizona. Crops were verified in situ twice in 2024, first on May 15th and again on Sep 10th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery for Arizona and supplemented with...

Observations of irrigated agricultural land within the Butler Valley Groundwater Basin in Arizona. Crops were verified in situ once in 2024 on May 15th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery for Arizona and supplemented with the Sentinel2 imagery collection...

Observations of irrigated agricultural land within the Agua Fria Groundwater Basin in Arizona. Crops were verified in situ once in 2024 on Aug 15th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery for Arizona and supplemented with the Sentinel2 imagery collection...

Observations of irrigated agricultural land within the Sacramento Valley Groundwater Basin in Arizona. Crops were verified in situ once in 2024 on Jun 6th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023 imagery for Arizona and supplemented with the Sentinel2 imagery...

Observations of irrigated agricultural land within the San Simon Valley Groundwater Subbasin of the Safford Groundwater Basin in Arizona. Crops were verified in situ twice in 2024, first on May 31st and again on Sep 20th; based on digitized field boundaries. Field boundaries were digitized from U.S. Department of Agriculture, National Agriculture Imagery Program County Mosaic 2023...

A three-dimensional unsaturated-zone flow model was developed using Hydrus-3D (PC-Progress, Inc.) to simulate managed aquifer recharge at the Southeast Houghton Artificial Recharge Project (SHARP) in Tucson, AZ. Recharge, up to about 4,000 acre-feet per year, takes place at three surface basins. The model simulates variable-saturated flow in the unsaturated zone and groundwater mounding...

The City of Flagstaff in northern Arizona utilizes Upper Lake Mary reservoir for approximately 25 to 30 percent of its water supply and understanding the detailed topography of the storage basin is essential for effective water management. The U.S. Geological Survey incorporated modern bathymetric and ground survey techniques to construct a 1-meter (1m) resolution digital elevation model...