| 山东地壳运动速度场模型建立与分析 |
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| 引用本文： | 徐杰,孟黎,国兆新.山东地壳运动速度场模型建立与分析[J].测绘科学,2017,42(7). |
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| 作者姓名： | 徐杰 孟黎 国兆新 |
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| 作者单位： | 1. 山东省国土测绘院,济南,250012;2. 山东城市建设职业学院,济南,250014;3. 山东省泰山气象站,山东泰安,271000 |
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| 基金项目： | 教育部中央高校基本科研业务费专项资金项目，中国科学院遥感与数字地球研究所项目，四川省应急测绘保障与地质灾害监测工程技术研究中心开放研究基金项目，国家博士后基金项目 |
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| 摘 要： | 建立高精度的地壳运动速度场模型是实现区域大地基准动态维持,反映地面形变,保障基础设施工程建设的重要途径。针对点位分布密集、精度可靠和多年连续重复观测等准确获取区域地壳运动速度场模型的关键问题,通过对山东及周边省份2010年1月—2015年11月连续近6a的130座连续运行参考站点在ITRF2008框架下进行处理,获取时间序列。首次完整建立了山东省地壳运动速度场模型。通过模型分析表明:水平方向,山东省地壳整体向东南方向运动,平均速率为34.3mm/a,运动方向为SE110.25°;垂直方向,鲁中山区及胶东半岛地区地壳较为稳定,鲁北、鲁西等华北平原地区存在显著沉降,最大沉降量位于广饶漏斗区,年沉降量81.6mm/a。
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| 关 键 词： | CORS 山东地壳运动 坐标时间序列 速度场 ITRF2008 |
Establishment andanalysis of shandong crustal movement velocity fields model |
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| XU Jie,MENG Li,GUO Zhaoxin.Establishment andanalysis of shandong crustal movement velocity fields model[J].Science of Surveying and Mapping,2017,42(7). |
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| Authors: | XU Jie MENG Li GUO Zhaoxin |
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| Abstract: | Establishing the high-precision crustal movement velocity fields model is the important method to dynamically maintain the regional geodetic datum,reflect the land subsidence and guarantee the infrastructure construction.Aiming at key problems of establishing the model in densely distribution of the stations,reliable accuracy and continuous observation for years,this paper deals with serial 6 a data of 130 reference stations in Shandong provincial cors network during the period of Jan.2010 to Nov.2015,and gets the coordinate time series under ITRF2008,It was to be first we establishes the crustal movement velocity fields model of Shandong Province completely.By means of analyzing the model,a conclusion is that in horizontal direction,the crust moves towards the southeast,the average speed is 34.3 mm/a and the direction is SE110.25°;in vertical direction,the crust in mountain areas of Shandong provincial midlands and Shandong peninsula are stable,north and west areas of Shandong province in the plain of North China have the obvious land subsidence,the dominant subsidence appears in Guangrao funnel area,the annual sedimentation is 81.6 mm/a. |
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| Keywords: | CORS Shandong crustal movement coordinate time series velocity fields ITRF2008 |
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