| Abstract: | Satellite Interferometric Synthetic Aperture Radar (InSAR) is a revolutionary technique that allows scientists to measure and map changes on the Earth‘s surface as small as a few millimeters. By bouncing radar signals off the ground surface from the same point in space but at different times, the radar satellite can measure the change in distance between the satellite and ground (range change) as the land surface uplifts or subsides. Maps of relative ground-surface change (interferograms) are constructed from the InSAR data to help scientists understand how ground-water pumping, hydrocarbon production, or other human activities cause the land surface to uplift or subside. Interferograms developed by the USGS for study areas in California, Nevada, and Texas are used in this fact sheet to demonstrate some of the applications of InSAR to assess human-induced land deformation |
| Genre: | USGS Numbered Series |
| ProdID: | 53836 |
| Citation Author: | Bawden, Gerald W.; Sneed, M.; Stork, S. V.; Galloway, D. L. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | 4 p. |
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| Citation Series: | Fact Sheet |
| Citation Series Code: | FS |
| Citation Series Number: | 069-03 |
| Citation Search Results Text: | Measuring human-induced land subsidence from space; 2003; FS; 069-03; Bawden, Gerald W.; Sneed, M.; Stork, S. V.; Galloway, D. L. |
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| Citation Year: | 2003 |
| Type: | citation/reference |
| Text: | Measuring human-induced land subsidence from space; 2003; FS; 069-03; Bawden, Gerald W.; Sneed, M.; Stork, S. V.; Galloway, D. L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/fs_069_03.jpg |
| URL (INDEX PAGE): | http://pubs.water.usgs.gov/fs06903/ |
| Date Other: | Fri, 1 Oct 2004 00:00 -0500 |
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