21 October 2014 Deformation monitoring in the metro Manila using ALOS/PALSAR
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Abstract
Excessive pumping of groundwater in the Metro Manila district, the Philippines, has occurred huge land subsidence. The purpose of this study is to investigate the distribution of spatial and temporal change on the earth surface in this area. We measured long-term ground subsidence by InSAR using JERS-1/SAR, ENVISAT/ASAR, Fine-beam, polarimetry and ScanSAR mode of ALOS/PALSAR, and TerraSAR-X data. As a result, we detected apparent subsidence and uplift patterns at eight locations. They have been found to correlate with up-down motion of groundwater level. The largest amount of ground subsidence was measured approximately 600 mm over 6 years (100mm/year).
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Tomonori Deguchi, "Deformation monitoring in the metro Manila using ALOS/PALSAR", Proc. SPIE 9243, SAR Image Analysis, Modeling, and Techniques XIV, 924315 (21 October 2014); doi: 10.1117/12.2067163; https://doi.org/10.1117/12.2067163
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