GPS衛星追蹤站速度場之探討－－以內政部衛星追蹤站為例

The Study of GPS Tracking Station Velocity-M.O.I. Tracking Station Experiment

GPS衛星追蹤站速度場之研究長期以來一直是專家學者關心的主題，由於各國所設之GPS衛星追蹤站之速度場計算均受當地地體結構有絕對的影響，因此無法計算出具代表性的速度場資料，台灣也不例外。本文藉由內政部在台灣所設立之GPS衛星追蹤站資料，計算自1999年到2003年各站的速度場變化，並且結合地體結構理論探討921地震對各站速度場變化之影響，推斷921地震對台灣板塊彈性回跳所影響的時間，待永久位移平穩後，進一步以迴歸分析計算各站之迴歸方程式，分析台灣地區GPS衛星追蹤站速度場公式的推求可行性。 The velocity of GPS tracking station research is a very popular topic, which experts concerned. The velocity of GPS tracking station affected by the local geological structure, so it is difficult to compute. There is the same situation in Taiwan. In this study, the velocity of GPS tracking station computes from 1999 to 2003 by using M.O.I. tracking station observables. It also discusses the velocity of GPS tracking station and the span time of Taiwan plate elastic bound affected by Chi-chi earthquake. Furthermore, this study tries to find feasibility of the velocity field of tracking station prediction equation by using regression analysis.

The velocity of GPS tracking station research is a very popular topic, which experts concerned. The velocity of GPS tracking station affected by the local geological structure, so it is difficult to compute. There is the same situation in Taiwan. In this study, the velocity of GPS tracking station computes from 1999 to 2003 by using M.O.I. tracking station observables. It also discusses the velocity of GPS tracking station and the span time of Taiwan plate elastic bound affected by Chi-chi earthquake. Furthermore, this study tries to find feasibility of the velocity field of tracking station prediction equation by using regression analysis.