Simulated and reported groundwater recharge fluxes in 196 locations in arid and semi-arid regions.

This dataset contains 196 locations in semi-arid and arid regions where groundwater recharge fluxes were reported based on ground-based methods, and their equivalent simulated groundwater recharge fluxes were estimated using the Richards equation, global soil properties, and daily climate data. For each location, there is a folder that contains the parameters of the soil hydraulic functions and the original climate (Rain (R) and potential evapotranspiration (Ep)) that was used. Long daily R and Ep time series were synthesized according to the original measured climate. Furthermore, the statistics of the long daily time series were modified, mainly the standard deviation and the mean of the R and Ep. For a comprehensive dataset description, please refer to the paper entitled ‘Changes in mean evapotranspiration dominate groundwater recharge in semi-arid regions’.

本数据集涵盖半干旱与干旱区的196个点位，这些点位的地下水补给通量（groundwater recharge fluxes）已通过地面观测方法（ground-based methods）公开报道；研究人员同时借助理查兹方程（Richards equation）、全球土壤属性数据以及逐日气候数据，估算得到了各点位对应的等效模拟地下水补给通量。每个点位对应一个专属文件夹，其中存储了土壤水力学函数（soil hydraulic functions）的参数，以及研究所使用的原始气候数据：降雨（Rain, R）与潜在蒸散发（potential evapotranspiration, Ep）。研究人员依据原始实测气候数据，合成了长时段逐日降雨（R）与潜在蒸散发（Ep）时间序列；此外还对该长时段逐日时间序列的统计特征进行了调整，主要修改了降雨与潜在蒸散发的标准差与均值。如需获取该数据集的完整描述，请参阅题为《Changes in mean evapotranspiration dominate groundwater recharge in semi-arid regions》的学术论文。