Total Applied Surface Water and Groundwater Irrigation Data from Four Areas to Support Analysis for Estimating Irrigation Consumptive Use for the Conterminous United States

This digital dataset contains irrigation applications and consumptive use at the agricultural-field scale (average 173 acres) and twelve-digit watershed scale (HUC12) for four regions in the conterminous United States representing calendar years 2000-2020. Agricultural field-scale irrigation depths of applied groundwater and surface water for selected agricultural fields were compiled from local and state agencies for Pajaro Valley, California, Snake River, Idaho, Colorado River, Colorado, and the Mississippi Alluvial Plain. To ensure accurate irrigation amounts for agricultural fields, only data that could be directly (1-to-1) tied with surface water and groundwater points of diversion and agricultural field places of use were used. Agricultural field-scale data were aggregated to HUC12 scale to compute consumptive use and compare with consumptive use reported in Martin and others (2023).

本数字数据集涵盖美国本土四个区域在2000至2020年日历年的农田尺度（平均173英亩）与十二位水文单元代码（HUC12）流域尺度的灌溉用水量及耗水量数据。针对加州帕萨罗谷、爱达荷州蛇河流域、科罗拉多州科罗拉多河流域及密西西比河冲积平原的选定农田，其地下水与地表水灌溉水深的农田尺度数据均由地方及州级相关机构汇编获得。为保障农田灌溉量数据的准确性，本数据集仅采用可与地表水、地下水取水点及农田用水地块实现直接一一对应的有效数据。研究团队将农田尺度数据聚合至HUC12流域尺度以计算耗水量，并与Martin等人（2023）报道的耗水量结果进行对比。