Science Service System

Summary of Proposal GEO0149

TitleX-band Interferometric SAR Observations of Land Subsidence in New Orleans, Louisiana
Investigator Kim, Sang-Wan - Sejong University, Geoinformation Engineering
Team Members
Dr. Wdowinski, Shimon - University of Miami, Division of Marine Geology and Geophysics
Dr. Amelung, Falk - University of Miami, Division of Marine Geology and Geophysics
Dr. Dixon, Timothy - University of Miami, Division of Marine Geology and Geophysics
Dr. Dokka, Roy - Louisiana State University, Louisiana Spatial Reference Center and Center for GeoInformatics
Dr. Graber, Hans - University of Miami, Applied marine physics
SummaryMany urban areas are experiencing land subsidence due to anthropogenic activities, such as water, oil and natural gas withdrawal. In addition, some areas also experience subsidence due to natural processes such as sediment compaction. The combination can make some coastal urban areas such as New Orleans highly susceptible to flooding due to storm surge during hurricanes and other tropical storms. This problem is exacerbated by global warming and sea level rise. We propose to remotely measure land subsidence in New Orleans urban areas using Interferometric Synthetic Aperture Radar (InSAR) observations. We will use both standard interferometric techniques as well as the new point target scatterer technique. Our results will be tested against leveling data, GPS and other InSAR observation using other SAR observations, mainly C-band. These comparisons will provide useful tests for the general feasibility test and accuracy assessment of X-band InSAR technique in urban.

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DLR 2004-2016