SCEC Award Number 17232 View PDF
Proposal Category Individual Proposal (Data Gathering and Products)
Proposal Title Development of Campaign GPS Time Series for Integrated Community Geodetic Model
Investigator(s)
Name Organization
Zheng-Kang Shen University of California, Los Angeles
Other Participants
SCEC Priorities 1a, 2a, 3e SCEC Groups SDOT, CXM, Geodesy
Report Due Date 06/15/2018 Date Report Submitted 11/14/2018
Project Abstract
 The major objective of this project is to produce campaign GPS time series and crustal motion model in southern California. All the campaign GPS data observed 1986-2016 in southern California are collected and processed uniformly using the GAMIT software, various problems associated with the meta data are fixed, and the final solution is referenced reliably to the stable north America reference frame. Station displacement time series are modelled as a function of secular velocities and coseismic/postseismic displacements of significant earthquakes. This product is a major component of the SCEC Community Geodetic Model (CGM) project, which provides foundation for further research of tectonic deformation, earthquakes, and seismic hazard assessments.
Intellectual Merit The product has been and will be used to refine fault slip rate estimates, assess seismic hazards, and constrain off-fault deformation.
Broader Impacts The research has the potential for seismic hazard mitigation.
Exemplary Figure Figure 3. Example of GPS time series for two sites located in Mojave Desert, as shown in Figure 2. Blue curves are model predicted time series.