我国国家大地网的地壳形变改正探讨
Crustal Deformation Corrections of National Geodetic Networks
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摘要: 以2000网为例,根据1991~2001年累积的GPS重复观测资料,利用GIPSY软件建立具有1115个测点的地壳运动模型。在此基础上,采用双三次样条函数数值拟合法,模拟出2000网网点相对西安基准站的地壳形变改正值,并给出了效果图。Abstract: This paper illustrates the crustal deformation corrections of national geodetic networks and advanceds their conception and process, and simulates the horizontal velocity about 2000 net.