應用雷達差分干涉法監測都會型地表變形：以中壢工業區爲例

Application of DInSAR in Monitoring the Metropolitan Land-Surface Deformation: Jungli Industry Park as an Example

張中白(Chung-Pai Chang) ； 王志添(Chih-Tien Wang) ； 王皓正(Hao-Cheng Wang) ； 陳錕山(Kun-Shan Chen)

《航測及遙測學刊》 9卷3期 (2004/09) Pp. 9-14

https://doi.org/10.6574/JPRS.2004.9(3).2

摘要

本研究選用八幅ERS1/2人造衛星所擷取的合成孔徑雷達影像，以差分干涉法進行測量，成功獲得中壢工業區過去十年內地表變形情形。研究成果顯示中壢工業區的變形以垂直下陷為主，變形區域大體呈圓形分佈。另外，本區下陷事件大約從1996年開始發生，至2000年以後方才逐漸趨緩；由於明顯的下陷速率變化，以及近圓形的變形分佈，本區的地層下陷極有可能是地下水抽取所引起。地下水抽取造成的地層下陷可以利用數值模擬加以驗證，這將是後續的研究重點。

關鍵字

合成孔逕雷達 ； 差分干涉法 ； 地表變形

並列摘要

Eight ERS1/2-SAR images recorded in the last ten years are used for determining the land-surface deformation in the Jungli Industry Park area by differential interferometric method. The interferometric results reveal a circular-shape subsidence of which the center is situated within the Jungli Industry Park center. Moreover, the subsidence event of this area occurred from 1996, and tended to cease after 2000. The rapid change of subsidence rate and the circular-shape of subsidence distribution illustrate that the artificial influences, for example, groundwater pumping may be important factors for the land subsidence of the Jungli area. Numerical simulation of land subsidence in terms of discharge/recharge of groundwater can substantiate in advance the relationship between the land deformation and the groundwater influence for the Jungli area in the future.

並列關鍵字

Synthetic Aperture Radar ； Differential Interferometry ； Land-Surface Deformation