Monitoring deformation at the Geysers Geothermal Field, California using C-band and X-band interferometric synthetic aperture radar

Geodetic observations, often in conjunction with other data, provide a cost-effective means for identifying and characterizing geothermal resources. A review of the various methods reveals how the technology for measuring deformation has advanced considerably in the past few decades. Currently, interferometric synthetic aperture radar is the method of choice for monitoring deformation at a geothermal field. A discussion of geodetic monitoring at The Geysers geothermal field, California, illustrates some of the progress made and the challenges that remain.

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Imaging structure with fluid fluxes at the Brady geothermal field, Nevada using satellite interferometric synthetic aperture radar (InSAR)

10.1190/1.1851085 ◽

2004 ◽

Author(s):

Gary Oppliger ◽

Mark Coolbaugh

Keyword(s):

Synthetic Aperture Radar ◽

Geothermal Field ◽

Synthetic Aperture ◽

Interferometric Synthetic Aperture Radar ◽

Aperture Radar

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High Accuracy Algorithm of Airborne Interferometric Synthetic Aperture Radar

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.128-129.138 ◽

2011 ◽

Vol 128-129 ◽

pp. 138-141

Author(s):

Song Tao Han ◽

Ge Shi Tang ◽

Yong Fei Mao ◽

Lue Chen ◽

Mei Wang

Keyword(s):

Data Processing ◽

Synthetic Aperture Radar ◽

Large Scale ◽

Synthetic Aperture ◽

Interferometric Synthetic Aperture Radar ◽

Processing Methods ◽

X Band ◽

System Data ◽

Data Processing Methods ◽

Aperture Radar

Interferometric Synthetic Aperture Radar is one of the most important technologies for topographic mapping. The DEM quality of airborne InSAR system depends on both system hardware performance and data processing methods. To derive large scale topographic and thematic maps up to scale 1:50000 and 1:10000, the whole data processing methods were presented. The methods included SAR imaging, interferometric processing and cartographic processing. Special methods were induced to resolve the problems encountered in project applications. Results using X-band airborne InSAR system data showed validity of the algorithm.

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Time-series analysis of surface deformation at Brady Hot Springs geothermal field (Nevada) using interferometric synthetic aperture radar

Geothermics ◽

10.1016/j.geothermics.2016.01.008 ◽

2016 ◽

Vol 61 ◽

pp. 114-120 ◽

Cited By ~ 23

Author(s):

S.T. Ali ◽

J. Akerley ◽

E.C. Baluyut ◽

M. Cardiff ◽

N.C. Davatzes ◽

...

Keyword(s):

Time Series ◽

Time Series Analysis ◽

Synthetic Aperture Radar ◽

Hot Springs ◽

Surface Deformation ◽

Geothermal Field ◽

Synthetic Aperture ◽

Interferometric Synthetic Aperture Radar ◽

Series Analysis ◽

Aperture Radar

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A multiscale approach for detection and mapping differential subsidence using multi-platform InSAR products

Proceedings of the International Association of Hydrological Sciences ◽

10.5194/piahs-382-173-2020 ◽

2020 ◽

Vol 382 ◽

pp. 173-177

Author(s):

Dario E. Solano-Rojas ◽

Shimon Wdowinski ◽

Enrique Cabral-Cano ◽

Batuhan Osmanoglu ◽

Emre Havazli ◽

...

Keyword(s):

Synthetic Aperture Radar ◽

Data Availability ◽

Synthetic Aperture ◽

Multiscale Approach ◽

Interferometric Synthetic Aperture Radar ◽

Case Examples ◽

X Band ◽

Data Coverage ◽

Sar Data ◽

Aperture Radar

Abstract. Detecting and mapping subsidence is currently supported by interferometric synthetic aperture radar (InSAR) products. However, several factors, such as band-dependent processing, noise presence, and strong subsidence limit the use of InSAR for assessing differential subsidence, which can lead to ground instability and damage to infrastructure. In this work, we propose an approach for measuring and mapping differential subsidence using InSAR products. We consider synthetic aperture radar (SAR) data availability, data coverage over time and space, and the region's subsidence rates to evaluate the need of post-processing, and only then we interpret the results. We illustrate our approach with two case-examples in Central Mexico, where we process SAR data from the Japanese ALOS (L-band), the German TerraSAR-X (X-band), the Italian COSMO-SkyMed (X-band) and the European Sentinel-1 (C-band) satellites. We find good agreement between our results on differential subsidence and field data of existing faulting and find potential to map yet-to-develop faults.

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

Remote Sensing ◽

10.3390/rs12020225 ◽

2020 ◽

Vol 12 (2) ◽

pp. 225 ◽

Cited By ~ 1

Author(s):

Elena C. Reinisch ◽

S. Tabrez Ali ◽

Michael Cardiff ◽

J. Ole Kaven ◽

Kurt L. Feigl

Keyword(s):

Synthetic Aperture Radar ◽

Numerical Models ◽

Fluid Pressure ◽

Geothermal Field ◽

Synthetic Aperture ◽

Interferometric Synthetic Aperture Radar ◽

Before And After ◽

Best Fitting ◽

Coso Geothermal Field ◽

Aperture Radar

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.

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