2017-02-152024-05-13https://scholars.lib.ntu.edu.tw/handle/123456789/643032摘要：本計畫分析臺灣全島GPS移動站、GPS連續站、精密水準測線及PS-InSAR資料，提供全台地表速度場，接著透過斷層模型之建立，推估斷層短期滑移速率、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）利用近十數年來的地表變形觀測結果，同時針對臺灣中部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，推估斷層短期滑移速率、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）觀測評估臺灣中部區域之活動斷層活動性；（4）解算西南部地區單頻GPS觀測網之成果與精度，並評估其取代GPS移動站之可行性；（5）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。<br> Abstract: We analyze the geodetic data from the island-wide campaign and continuous GPS network, precise leveling lines and PS-InSAR to provide the surface velocity field in this project. We invert the surface velocities to estimate the short-term fault slip rate, slip deficit rate and optimized fault geometry parameters by adopting the fault models. The surface velocity field and the 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 short-term fault slip rate, slip deficit rate and optimized fault geometry parameters in central Taiwan by adopting the fault models; (2) determine the spatiotemporal variation of surface velocity field in Taiwan by analyzing geodetic data from 773 campaign GPS stations, 42 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) calculate the data from single-frequency GPS network in SW Taiwan and evaluate its potential to replace the campaign GPS network; (5) develop the near real-time GPS processing technique using precise point positioning (PPP).全球衛星定位系統精密水準PS-InSAR斷層模型GPSPrecise LevelingPS-InSARFault Model