The Gravity Recovery and Climate Experiment (GRACE) mission has measured total water storage change (TWSC) interpreted drought patterns in an unparalleled way since 2002. Nevertheless, there are few sources that can be used to understand prior the GRACE era. In this study, we extended gridded TWSC 1993 by combining principal component analysis (PCA), least square (LS) fitting, multiple linear r...

The solid Earth deforms elastically in response to variations of surface atmosphere, hydrology, and ice/glacier mass loads. Continuous geodetic observations by Global Positioning System (CGPS) stations and Gravity Recovery and Climate Experiment (GRACE) record such deformations to estimate seasonal and secular mass changes. In this paper, we present the seasonal variation of the surface mass ch...

Drought is a complex natural hazard which can have negative effects on agriculture, economy, and human life. In this paper, the primary goal is to explore the application of the Gravity Recovery and Climate Experiment (GRACE) gravity satellite data for the quantitative investigation of the recent drought dynamic over the arid land of northwestern China, a region with scarce hydrological and met...

Earth’s gravitational field provides invaluable insights into the changing nature of our planet. It reflects mass change caused by geophysical processes like continental hydrology, changes in cryosphere or flux ocean. Satellite missions such as NASA/DLR operated Gravity Recovery and Climate Experiment (GRACE), its successor GRACE Follow-On (GRACE-FO) continuously monitor these temporal variatio...

Observations from the Gravity Recovery and Climate Experiment (GRACE) GRACE Follow-On (GRACE-FO) missions can be used to estimate gravimetric excitation of polar motion (PM), which reflects contribution mass changes in continental hydrosphere cryosphere PM variation. Many solutions for Earth’s gravity field variations have been developed by institutes around world based on GRACE/GRACE-FO data; ...

gravity recovery and climate experiment (grace) satellite gravimetry mission launched in march 2002 based on its twin gravimetric satellites makes application of both high-low (hl) and law-low (ll) gravimetric techniques possible. the ll is based on satellite-to-satellite tracking (sst) via the one way two frequencies k-band-ranging between the two grace satellites. as a result of combination o...

Abstract Changing water quantities and location can be estimated using the Gravity Recovery Climate Experiment (GRACE) satellites. By measuring differences in Earth's gravity, satellites provide monthly data on regional changes mass resulting from movement of water. Studying Southeast U.S., full record original GRACE (2002–2016), a significant trend declining appears west-central Alabama, exten...

This study is designed to demonstrate use of free remote sensing data to analyze response of water resources and grassland vegetation to a climate change induced prolonged drought in a sparsely gauged semi-arid region. Water resource changes over Hulun Lake region derived from monthly Gravity Recovery and Climate Experiment (GRACE) and Tropical Rainfall Measuring Mission (TRMM) products were an...