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    题名: 自由場強震網資料收集及分析-中部地區(IV);Taiwan Strong Motion Instrument Program Field System
    作者: 王乾盈
    贡献者: 地球物理研究所
    关键词: 資料收集;強地動;強地動觀測計畫;earthquake;Strong Motion;TSMIP;CWB;地球科學類
    日期: 2010-12-01
    上传时间: 2010-05-28 15:07:15 (UTC+8)
    出版者: 交通部中央氣象局
    摘要: 中央氣象局地震測報中心自1992年起,於全島設置七百多部自由場強震儀,監測強地動情形。為維護儀器正常運作及資料蒐集方便,全省分成四個區域,分別由不同的大學與研究單位負責資料收集的工作。本所負責中部地區強震網(TCU網),涵蓋面積約150公里 x 140公里,共計有181個強震站,範圍包括:桃園縣24站、新竹縣25站、苗栗縣29站、台中縣50站、彰化縣30站、及南投縣23站。計畫主要的工作包含:1)儀器維護 2)資料收集 3)基本資料分析與整理。目的是希望能夠收集高品質的強震資料,並使整個系統運作更為順暢,提高資料可信度。 除了野外資料收集之外,我們也進行一些基本的分析。根據這幾年來的紀錄,可以檢測並評估系統的效能。另外,不同地區的PGA、PGV及PGD也可得到。利用蕭乃祺 (2006)所提出的觀念,可以將震源、場址及路徑的效應分離;由分離的場址效應顯示與區域地質有關。這是相當有趣的研究,值得做更進一步的努力。 The earthquake center of Central Weather Bureau has set up a program to promote the observation of earthquake strong motion over Taiwan island since 1990. The purpose is to establish a 1000 station system to collect reliable strong motion data for earthquake hazard analysis. Half of these instruments (600 pieces) are deployed on the free field to monitor the ground motion. In order to maintain the instrument and collect the data, the system has been divided into 4 areas, and distributed among the universities and research institutes to share the responsibility. Our research group is in charge of the Central Taiwan which has 180 stations with an area of 150 km × 140 km. This region includes the counties of Taoyuan (24), Hsinchu (25), Miaoli (29), Taichung (50), Changhua (30) and Nantou (23). The task of this project includes: 1) instrument maintenance, 2) data acquisition, 3) background noise analysis and 4) documentation and basic signal analysis. All of these efforts will direct toward collecting high quality strong motion records and making the system operate smoothly and reliably. Except the field data collection, we also performed several basic data analysis. By using these years’ data, we reviewed and evaluated the performance of the system. The space distributions of PGA, PGV and PGD in different areas are investigated. Some techniques to separate the source, site and path effect of Hsiao’s (2006) type are also tested. The isolated site effects show consistent variation with local geology. This is an interesting study and worth further effort. 研究期間:9901 ~ 9912
    關聯: 財團法人國家實驗研究院科技政策研究與資訊中心
    显示于类别:[地球物理研究所] 研究計畫

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