Universal Journal of Geoscience Vol. 5(5), pp. 138 - 141
DOI: 10.13189/ujg.2017.050502
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RADAR Remote Sensing Combined with Continuous GPS Measurements for the Monitoring of Deformations of Geothermal Fields: A Proposed Methodology

J N Mbogo , J N Kebu ^*
Kenya Electricity Generating Company Ltd., Kenya

ABSTRACT

Electricity generation from geothermal sources is associated with geothermal fluid extraction and re-injection, resulting in surface changes/displacements horizontally and vertically (uplift or sinking) (Eneva, 2009). Besides, previous geodetic monitoring of geothermal production sites have shown large subsidence and horizontal displacement at tribute to thermal contraction, pressure reduction in the reservoir, and/or changes in the local stress field (Heimlich, Masson, & Gourmelen, 2013). Conventional surveying methods employed to measure the deformations of structures with small and slow displacements have often provided in frequent though precise estimates of these deformations. With the development of high precision GPS methods and Remote Sensing, an alternative method for monitoring structural deformations is available. Continuous GPS measurements technique with its higher temporal resolution is complemented with RADAR remote sensing so as to cover larger areas spatially. Citing case studies, this paper fronts the application of RADAR Remote Sensing complimented with continuous GPS measurements as an ideal way of monitoring deformations of geothermal fields for better geothermal field management. A similar proposition has been forwarded for approval in the management of Olkaria Geothermal Field which houses the largest geothermal power plant in Africa.

KEYWORDS
RADAR Remote Sensing, Geothermal Sources, Deformation Monitoring

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] J N Mbogo , J N Kebu , "RADAR Remote Sensing Combined with Continuous GPS Measurements for the Monitoring of Deformations of Geothermal Fields: A Proposed Methodology," Universal Journal of Geoscience, Vol. 5, No. 5, pp. 138 - 141, 2017. DOI: 10.13189/ujg.2017.050502.

(b). APA Format:
J N Mbogo , J N Kebu (2017). RADAR Remote Sensing Combined with Continuous GPS Measurements for the Monitoring of Deformations of Geothermal Fields: A Proposed Methodology. Universal Journal of Geoscience, 5(5), 138 - 141. DOI: 10.13189/ujg.2017.050502.