Monitoring groundwater variability from space: the GRACE satellite gravity mission.
Monitoring groundwater variability from space: the GRACE satellite gravity mission.
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从太空监测地下水变化：GRACE 卫星重力任务。
DOI：
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发表时间：
2009
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影响因子：
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通讯作者：
S. Swenson
中科院分区：
文献类型：
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作者：
J. Wahr;V. M. Tiwari;S. Swenson
NASA 和德国航天局 (DLR) 于 2002 年启动了 GRACE 卫星任务。GRACE 为地球全球重力场提供准确的每月解决方案。解之间的差异提供了有关地球质量分布每月变化的信息。其结果可用于监测数百公里及以上区域的总蓄水量变化。总水量包括地下水、土壤湿度、地表水和雪的贡献。如果使用观测或模型输出减去土壤湿度和地表水+雪的贡献，则残差提供地下水变化。
NASA and the German Space Agency (DLR) launched the GRACE satellite mission in 2002. GRACE provides accurate monthly solutions for Earth's global gravity field. Differences between solutions provide information about monthly variations in Earth's mass distribution. The results can be used to monitor changes in the total volume of water stored in regions with scales of a few hundred kilometres and larger. Total water volume includes contributions from groundwater, soil moisture, surface water, and snow. If soil moisture and surface water+snow contributions are subtracted, using observations or model output, the residuals provide groundwater variability.