Well and Monitoring Data; Land Use Land Cover Change; Grace CRS-Mascon

The groundwater observation well data for verification of GRACE-derived GWSA were collected from Global Groundwater Information System (GGIS). The study only used monthly groundwater level (GWL) records from nine wells in Uganda (the region of UN) due to data shortage in other sections of the basin. The anomaly of the data (GWLA) was correlated with GRACE-derived monthly GWSA estimates to validate the credibility of GRACE data.用于验证GRACE反演地下水储量变化（GRACE-derived GWSA）的地下水观测井数据，采集自全球地下水信息系统（Global Groundwater Information System, GGIS）。鉴于该流域其余区域数据短缺，本研究仅采用了乌干达境内9口观测井的月度地下水位（groundwater level, GWL）记录。随后将该数据的异常值（GWLA）与GRACE反演得到的月度地下水储量估计值开展相关性分析，以此验证GRACE数据的可信度。