Remote Sens., Volume 13, Issue 2 (January-2 2021) – 172 articles
Cover Story (view full-size image): Accurate land deformation measurements can provide constructive insight into the regional geophysical and hydrologic processes. Global positioning system (GPS) networks are not uniformly distributed across the globe, posing a challenge to obtaining accurate deformation information in data-sparse regions. This paper computes vertical displacement by assimilating gravity data from the Gravity Recovery and Climate Experiment (GRACE) and GRACE Follow-On (GRACE-FO) into the hydrologic model using the GRACE/GRACE-FO data assimilation (DA) technique. Results confirm the GRACE/GRACE-FO DA success in providing vertical displacement estimates consistent with satellite data while maintaining high-spatial details of the model, highlighting the benefits of GRACE/GRACE-FO DA in data-sparse regions. View this paper
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