GRACE卫星在区域地下水管理中的应用潜力综述

GRACE卫星能反演区域地下水储量的月动态变化,而且数据免费,它为区域地下水管理提供了新的方法。首先总结了区域地下水管理、GRACE卫星在地下水储量和区域地下水管理中的应用现状;接着通过多个案例分析展示了GRACE卫星能成功应用于区域地下水储量动态评价,而且GRACE反演的地下水动态数据能用于区域地下水模型的参数识别,证实了GRACE卫星在区域地下水管理的应用潜力;最后指出GRACE卫星反演的数据在应用中的两大问题:该数据无法直接用于区域地下水资源评价和空间分辨率低。GRACE卫星如何有效用于区域地下水资源评价和如何提高GRACE卫星反演数据的空间分辨率是当前研究的发展方向。

Review on the Application of GRACE Satellite in Regional Groundwater Management

GRACE satellite can be used to derive monthly regional groundwater storage changes, and the data can be freely downloaded, which provides a new method for regional groundwater management. The processes in the management of regional groundwater, the application of GRACE-derived groundwater storage and the current status of GRACE satellite used in regional groundwater management were summarized. GRACE-derived data can be successfully used to the assessment of regional groundwater storage by case studies from the researchers all over the world. GRACE-derived data can be used in model calibration for regional groundwater flow model. GRACE satellite shows great potential in regional groundwater management. However, there are two problems in the application of GRACE-derived data. One is that the date can not be directly used to evaluate regional groundwater resource. The another one is low spatial resolution of GRACE data. Studying on the method for effectively evaluating regional groundwater resources from GRACE satellite and improving the spatial resolution of GRACE-derived data are the problems to be addressed in the future.