2018-03-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/681508摘要：本計畫分析臺灣全島GPS連續站、GPS移動站、精密水準測線及PS-InSAR資料，推求全台地表速度場，接著透過斷層模型之建立，推估斷層滑移虧損率及最佳斷層幾何參數等資訊，期能提供斷層活動潛勢之分析工作，並提供活動斷層地質敏感區分析之參考。今年計畫主要執行重點為：（1）利用十數年來的地表變形觀測結果，針對臺灣北部地區（含宜蘭地區）之活動斷層及潛在活動構造，採用斷層模型進行參數反演，推估斷層滑移虧損率及最佳斷層幾何參數等資訊；（2）解析GPS移動站、連續站與精密水準測量資料，嘗試建立臺灣地區三維地表速度場之時空變化，並檢核其精度；（3）利用持久性散射體合成孔徑雷達干涉技術（PS-InSAR）觀測評估臺灣北部區域之活動斷層活動性；（4）嘗試利用單點定位技術（PPP）發展連續GPS近即時資料解算技術，針對陸地上規模大於6的地震事件，在一周內完成連續GPS同震位移場之解算工作。<br> Abstract: We analyze the geodetic data from the island-wide continuous and campaign GPS network, precise leveling routes, and PS-InSAR to provide the surface velocity field in this project. We invert the surface velocities to estimate the fault slip rate deficits and optimized fault geometry parameters by the kinematic fault models. The surface velocity field and derived fault parameters will help to assess the probability analysis of major faults and to delineate the geologically sensitive areas of active faults. The main missions of this year are to: (1) invert the surface velocities to estimate the slip rate deficit and optimized fault geometry parameters in northern Taiwan (including Ilan area) by adopting three fault models; (2) determine the spatiotemporal variation of surface velocity field in Taiwan by analyzing geodetic data from campaign-mode GPS stations, precise leveling lines and continuous GPS network; (3) use radar images with PS-InSAR technique to characterize the deformation pattern across the active faults in central Taiwan; (4) develop the near real-time GPS processing technique using precise point positioning (PPP) to estimate coseismic displacement of M > 6 inland earthquake.全球衛星定位系統精密水準PS-InSAR斷層模型GPSPrecise LevelingPS-InSARFault Model