Title: Geodetic Measurements and Numerical Models of Deformation at Coso Geothermal Field, California, USA, 2004–2016

Journal Article · · Remote Sensing
DOI: https://doi.org/10.3390/rs12020225 · OSTI ID:1616426
ORCiD logo [1];  [2];  [3];  [4];  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. AIR-Worldwide, Boston, MA (United States)
  3. Univ. of Wisconsin, Madison, WI (United States)
  4. U.S.G.S. Earthquake Science Center, Menlo Park, CA (United States)
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We measure transient deformation at Coso geothermal field using interferometric synthetic aperture radar (InSAR) data acquired between 2004 and 2016 and relative positions estimated from global positioning system (GPS) to quantify relationships between deformation and pumping. We parameterize the reservoir as a cuboidal sink and solve for best-fitting reservoir dimensions and locations before and after 2010 in accordance with sustainability efforts implemented in late 2009 at the site. Time-series analysis is performed on volume changes estimated from pairs of synthetic aperture radar (SAR) and daily GPS data. We identify decreasing pore-fluid pressure as the dominant mechanism driving the subsidence observed at Coso geothermal field. We also find a significant positive correlation between deformation and production rate.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
National Science Foundation (NSF)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1616426
Report Number(s):
LA-UR-19-31925
Journal Information:
Remote Sensing, Journal Name: Remote Sensing Journal Issue: 2 Vol. 12; ISSN 2072-4292
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

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