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Summary of Proposal GEO0895

TitleData acquisition for GEO's Los Angeles, California Geohazard Supersite
Investigator Lundgren, Paul - California Institute of Technology, Jet Propulsion Laboratory
Team Member
Dr. Fielding, Eric - California Institute of Technology, Jet Propulsion Laboratory
SummaryThe Geohazards Supersite concept, organized by the Group of Earth Observation(GEO), is intended to facilitate access to space and in-situ data for regional areas exposed to geological threats. The principal objective is to encourage basic research of earthquake, volcano and other hazardous geological processes as a means of reducing the loss of life from geological disasters.Los Angeles,a earthquake/tectonic Supersite, features a highly active fault system that lies around and beneath a large metropolitan area.Complementing any InSAR data are extensive in-situ networks of seismometers and GPS instruments that allow maximization of the scientific interpretation of any InSAR data acquired there. We propose to applyTerraSAR-X repeat pass differential interferometry to study surface change associated with earthquake, and other transient deformation in Los Angeles and surrounding southern California.Previous studies have shown that Los Angeles and surrounding desert areas are well-suited for research using InSAR. From February-August 2009 Dr.Lundgren tasked TSX data acquisitions for two tracks over southern California.We will build on these acquisitions by tasking TerraSAR-X to acquire stripmap data over southern California across additional subswaths for these tracks in order to balance spatial coverage and temporal resolution, which may then be ordered by approved PIs (who have submitted individual proposals via the TerraSAR-X Science Service System) as part of GEO’s Los Angeles Geohazard Supersite.Data requirements: Strip-map mode data single polarization (HH). Data amounts: 33 acquisitions per year on each of two tracks covering Los Angeles and southern California. Total data request: 66-99scenes per year over the duration of the TSX and Tandem-X missions. Funding in support of the time required to manage tasking and acquisition plans is provided to the PIs (Lundgren and Fielding) by the U.S. National Aeronautics and Space Administration (NASA).

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