Groundwater volume loss estimates over Central Valley California associated with Water Resources Research Publication: Sustained Groundwater Loss in California’s Central Valley Exacerbated by Intense Drought Periods by Ojha et al. 2018

This dataset contains rate of groundwater volume loss based on 1-D poroelastic model applying InSAR vertical land motion observations over Central Valley, California, from December 24th, 2006 to January 1st, 2010. Details of the processing are provided in the work of Ojha et al. (2018):
C. Ojha, M. Shirzaei, S. Werth, D. F. Argus, T. G. Farr, Sustained Groundwater Loss in California’s Central Valley Exacerbated by Intense Drought Periods. Water Resour. Res. 54, 4449–4460 (2018).
Groundwater volume loss changes are provided on a regular grid of grid spacing 0.01 degree. Latitude and longigute coordinates of the grid are provided in the files lat.csv and lon.csv. Groundwater volume loss changes are provided in the file vollow.csv with the grid orientation latitude (rows) by longitude (columns). The groundwater volume loss changes are given in “equivalent water height” in unit of cm.

本数据集收录了基于一维多孔弹性模型，并应用干涉合成孔径雷达（InSAR）垂直地表运动观测数据，对加利福尼亚州中央谷地自2006年12月24日至2010年1月1日期间的地下水体积损失率。处理细节可参见Ojha等（2018）的研究成果。

C. Ojha, M. Shirzaei, S. Werth, D. F. Argus, T. G. Farr, Sustained Groundwater Loss in California’s Central Valley Exacerbated by Intense Drought Periods. Water Resour. Res. 54, 4449–4460 (2018).

地下水体积损失变化数据以0.01度网格间距的规则网格形式提供。网格的纬度和经度坐标分别由lat.csv和lon.csv文件提供。地下水体积损失变化数据存储在vollow.csv文件中，网格方向为纬度（行）与经度（列）。地下水体积损失变化以“等效水位高度”表示，单位为厘米。