Terrestrial water storage variation inferred from GRACE satellite and water balance

Pat J.F. Yeh

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

The GRACE satellite mission of gravity measurement launched in 2002 has been providing new information on terrestrial water storage (TWS) changes across the continents. Recent research has demonstrated that GRACE can be used to estimate TWS changes and other hydrologic quantities in large river basins. However, validation of GRACE water storage data remains difficult owing to the lack of data on TWS and its components, particularly over large areas. In this study, GRACE TWS will be compared with independent TWS estimates from other methods for selected regions and large river basins. Available in situ observations of soil moisture and groundwater depth are used to validate GRACE TWS data in Illinois. Seasonal and inter-annual TWS variations are explored by comparing GRACE TWS estimated from the combined (land-atmosphere) water balance (CWB) analysis for the selected large river basins. The primary goals of this study are to explore the potential for GRACE to observe TWS variations and to develop a framework for its validation.

Original languageEnglish
Title of host publication32nd Asian Conference on Remote Sensing 2011, ACRS 2011
Pages2850-2855
Number of pages6
Publication statusPublished - 2011
Externally publishedYes
EventAsian Conference on Remote Sensing 2011 - Tapei, Taiwan
Duration: 3 Oct 20117 Oct 2011
Conference number: 32nd

Publication series

Name32nd Asian Conference on Remote Sensing 2011, ACRS 2011
Volume4

Conference

ConferenceAsian Conference on Remote Sensing 2011
Abbreviated titleACRS 2011
CountryTaiwan
CityTapei
Period3/10/117/10/11

Keywords

  • GRACE satellite
  • Hydrological cycle
  • Terrestrial water storage

Cite this