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首页> 外文期刊>Universal Journal of Geoscience >RADAR Remote Sensing Combined with Continuous GPS Measurements for the Monitoring of Deformations of Geothermal Fields: A Proposed Methodology
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RADAR Remote Sensing Combined with Continuous GPS Measurements for the Monitoring of Deformations of Geothermal Fields: A Proposed Methodology

机译：RADAR遥感与连续GPS测量相结合以监测地热场变形的一种建议方法

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摘要

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.
机译：地热源的发电与地热流体的提取和再注入有关，导致地表水平/垂直方向发生变化/位移（隆升或下沉）（Eneva，2009）。此外，先前对地热生产站点的大地测量显示，由于热收缩，储层压力降低和/或局部应力场变化，沉陷和水平位移也很大（Heimlich，Masson和Gourmelen，2013）。用于测量具有小且缓慢位移的结构的变形的常规测量方法经常频繁地但精确地估计了这些变形。随着高精度GPS方法和遥感技术的发展，可以使用另一种方法来监视结构变形。具有更高时间分辨率的连续GPS测量技术与RADAR遥感相辅相成，可以在空间上覆盖更大的区域。引用案例研究，本文介绍了结合连续GPS测量的RADAR遥感技术的应用，它是监视地热场变形以更好地热场管理的理想方法。类似的提议也已转发给Olkaria地热田的管理部门批准，该地具有非洲最大的地热发电厂。

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