Science Service System

Summary of Proposal GEO0213

TitleTerraSAR InSAR Investigation of Active Crustal Deformation
Investigator Bürgmann, Roland - University of California, Berkeley, Department of Earth and Planetary Science
Team Members
Dr. Ferretti, Alessandro - Tele-Rilevamento Europa - T.R.E. s.r.l.,
SummaryThis project aims to utilize advanced analysis of Terra-SAR data to investigate the dy-namics and interactions of solid Earth deformation processes, such as earthquakes and fault creep, and Earth surface processes, such as land subsidence and groundwater movements, in a densely populated, urban region, the San Francisco Bay Area. Results from TerraSAR data will be carefully compared and integrated with InSAR data from other spacecraft, including the ERS-1/2, Envisat, RADARSAT-1 and ALOS satellites will be inte-grated in a rigorous analysis and monitoring effort of active surface deformation in the region. Ongoing deformation imaging reveals a number of natural hazards including elastic strain accumula-tion about seismogenic faults, active landsliding, land subsidence and rebound, and settling of unconsolidated sediments that are highly susceptible to liquefaction. Using a permanent scatterer InSAR analysis approach we are able to resolve the deformation at spatial resolutions of 10s of m to 100s of km and at a temporal resolution of a few weeks. Data from multiple spacecraft im-proves the temporal resolution and provides constraints on the 3D components of the observed motions. The San Francisco Bay Area is an ideal natural laboratory that exemplifies the connections between surface and interior processes. Funding for this work currently comes from the U.S. Geological Survey. Additional funding has been requested from NASA.

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