Evaluation of interferometric synthetic aperture radar (InSAR) techniques for measuring land subsidence and calculated subsidence rates for the Escalante Valley, Utah, 1998 to 2006 (OFR-589)

By: R. R. Forster

Previous studies have shown the Escalante Valley, Utah, is subsiding due to groundwater withdrawal. The magnitude and spatial pattern of this cm/yr.-scale subsidence is mapped with satellite data from a synthetic aperture radar (SAR) using interferometric SAR (InSAR) processing techniques. A relatively new processing approach that measures individual pixel displacements for selected persistent scatterers (PSInSAR) was tested in the agricultural setting of the Escalante Valley.

The objectives of this study were to 1) test the suitability of a relatively new application of interferometric synthetic aperture radar (InSAR) and 2) use traditional InSAR to measure land surface subsidence in the Escalante Valley, Utah. This 25-page report discusses the results of the study.

Other Information:
Published: 2012
Pages: 25 p.
Location: Garfield County, Iron County, Kane County, and Washington County