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地震 ›› 2004, Vol. 24 ›› Issue (2): 1-6.

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利用GPS观测结果对我国地壳水平形变强度的分析

顾国华1, 符养2, 王武星1   

  1. 1.中国地震局分析预报中心, 北京 100036;
    2.西安测绘研究所, 陕西 西安 710054
  • 出版日期:2004-04-30 发布日期:2021-11-29
  • 作者简介:顾国华(1944-), 男, 江苏启东人, 研究员, 主要从事GPS数据处理方法和软件、 地壳运动等研究。
  • 基金资助:
    国家重点基础研究发展规划资助项目(95-13-03-07)

Analysis on the intensity of horizontal crustal deformation in China based on results of GPS observations

GU Guo-hua1, FU Yang2, WANG Wu-xing1   

  1. 1. Center for Analysis and Prediction, CSB, Beijing 100036;
    2. Xi'an Institute of Surveying and Mapping, Xi'an 710054, China
  • Online:2004-04-30 Published:2021-11-29

摘要: 介绍利用中国地壳运动观测网络区域网(包括基本网与基准网)1999年与2001年2期GPS观测所获得的中国大陆地壳水平位移速率结果, 研究块体的划分、 块体位移与块体变形, 提出了用位移(速率)离散度分析块体或局部水平变形强度的方法, 分析了中国大陆现今地壳运动的基本特征及2001年11月14日昆仑山口西8.1级大地震前的地壳水平运动。

关键词: 地壳运动, GPS, 水平形变强度, 块体, 区域网

Abstract: The result of horizontal crustal movement in China's continent, obtained from 2 epochs of GPS observation in the regional network (including the basic network and the fiducial network) of the Crustal Movement observation Network of China (CMONOC) carried out in 1999 and 2001, is introduced. Division of blocks and their deformations are analyzed. An approach to analyze the intensity of horizontal crustal deformation in localized areas or on blocks in term of displacement velocity dispersion is proposed. The general characteristics of the recent horizontal crustal movement in China's continent and the horizontal crustal movement before the Kunlun Mountain earthquake with M8.1 on Nov. 14, 2001 are analyzed.

Key words: Crustal movement, GPS, Intensity of horizontal deformation, Block, Regional network

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