Geo468K_GravAnomalies

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Unformatted text preview: world wide gravity map is made about once per month. This allows for tracking movements of air and water. Maps are of free- air gravity anomalies GRACE Monthly Gravity Anomalies over Land GRACE Monthly Gravity Anomalies over Oceans GRACE detects coseismic and postseismic deforma2on from the Sumatra- Andaman earthquake rand J. L. Chen, C. R. Wilson, B. D. Tapley, and S. G GRACE global mass change between the mean of 2005 and 2006 and mean of 2003 and 2004, with 4 filtering schemes: (a)  500 km Gaussian smoothing, (b) 300 km Gaussian smoothing, (c) decorrelaEon filtering and 500 km Gaussian smoothing, and (d) decorrelaEon filtering and 300 km Gaussian smoothing. GRACE detects coseismic and postseismic deforma2on from the Sumatra- Andaman earthquake Grand J. L. Chen, C. R. Wilson, B. D. Tapley, and S. Detail from Figure 1d shows the region of the Sumatra- Andaman earthquake. The epicenters of the Sumatra- Andaman earthquake (the main shock) and the Nias earthquake are marked by the pink and white triangles, respec2vely. Two grid points A (0.5N, 96.5E) and B (6.5N, 96.5E), marked by white crosses, are selected to demonstrate the rupture process as a func2on of 2me in later analysis. This image captures coseismic deforma2on of December 2004 event and part of the March 2005 event, based on the difference between two sets of 2- year ave...
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This note was uploaded on 02/02/2014 for the course GEO 468k taught by Professor Staff during the Spring '08 term at University of Texas at Austin.

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