基于河北CORS网的地壳垂直运动速度场模型研究  

MODEL OF CRUSTAL VERTICAL MOVEMENT VELOCITY FIELD BASED ON HEBEI CORS NETWORK

作　　者：陈醒[1,2] 程鹏飞[3] 成英燕[2] 范文涛 王晓明[2] 王福丽[2] 

机构地区：[1]辽宁电力勘测设计院,沈阳110005 [2]中国测绘科学研究院,北京100830 [3]国家测绘产品质量检验测试中心,北京100830 [4]东北煤田地质局一○七勘探队,阜新123100

出　　处：《大地测量与地球动力学》2013年第4期48-51,共4页Journal of Geodesy and Geodynamics

基　　金：地心坐标系维护与推广应用(A1201);卫星连续运行站数据处理(A1928);863项目:全球动态地心坐标参考框架维持关键技术(2013AA122501)

摘　　要：采用河北CORS网一期站点近4年的GPS观测数据,利用GAMIT/GLOBK软件进行地壳垂直运动速度场解算。结果表明:河北地壳垂直运动以下降为主,东南平原地区为严重沉降区,局部地区3年累计沉降量已超过150 mm;11月垂直下降速率比4月快,较大的速率差值已超过10 mm/a。利用多面函数法建立河北地壳垂直运动速度场模型,计算了6'×6'格网速度值,并绘制了垂直运动速度等值线图。Abs ware tract The vertical crustal movement velocity field in Hebei is calculated using the GAMIT/GLOBK soft with GPS observational data of the firststage stations of Hebei CORS network in the past four years. The re suhs show that the mainly vertical crustal movement is a downward motion and that southeast plain region is a seri ous settlement area in Hebei. The cumulative subsidence in the past three years is more than 150 mm in part areas. And the vertical descent rate in November is faster than that in April. The larger difference of rate has more than 10 mm/a. The model of vertical crustal movement velocity field in Hebei is established based on the method of mul tiquadric functions and 6＇ 6＇grid velocity is calculated and the isoline map of vertical movement velocity is drew.

关 键 词：垂直运动 速度场 形变分析 多面函数 格网速度 

分 类 号：P207[天文地球—测绘科学与技术]