Global time variations of hydrological signals from GRACE satellite gravimetry
نویسندگان
چکیده
منابع مشابه
Satellite Altimetry and GrAcE Gravimetry for Studies of Annual Water Storage Variations in Bangladesh
Four different data sources have been compared with respect to observations of the annual water storage variations in the region of Bangladesh. Data from satellite altimeters and river gauges estimates the variation in surface water storage in the major rivers of Bangladesh. The GRACE satellites measure the integrated mass change and hence the terrestrial soil moisture variations, which can als...
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Global assessment of the spatiotemporal variability in terrestrial total water storage anomalies (TWSA) in response to hydrologic extremes is critical for water resources management. Using TWSA derived from the gravity recovery and climate experiment (GRACE) satellites, this study systematically assessed the skill of the TWSA-climatology (TC) approach and breakpoint (BP) detection method for id...
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Time series of regional 2° × 2° Gravity Recovery and Climate Experiment (GRACE) solutions of surface water mass change have been computed over Africa from 2003 to 2012 with a 10-day resolution by using a new regional approach. These regional maps are used to describe and quantify water mass change. The contribution of African hydrology to actual sea level rise is negative and small in magnitude...
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Article history: From the IPCC 4th Assessm Received 2 August 2008 Accepted 12 October 2008 Available online 18 October 2008
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The satellite mission GRACE (Gravity Recovery and Climate Experiment) provides monthly solutions of the global gravity field of the Earth. Temporal variations in gravity reflect mass redistributions over the Earth. Those mass movements are caused by physical phenomena such as ice sheet dynamics, accumulation of hydrological masses over land, the dynamics in the solid Earth and the dynamics in t...
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ژورنال
عنوان ژورنال: Geophysical Journal International
سال: 2004
ISSN: 0956-540X
DOI: 10.1111/j.1365-246x.2004.02328.x