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地震 ›› 2001, Vol. 21 ›› Issue (1): 63-68.

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中国地壳运动观测网络首期观测数据处理*

孟国杰1, 赵承坤2, 顾国华1, 牛红叶1, 郑贵明1, 孙淑英1   

  1. 1.中国地震局分析预报中心,北京 100036;
    2.中国地震局第一地形变监测中心,天津 300180
  • 出版日期:2001-01-31 发布日期:2022-10-27
  • 作者简介:孟国杰(1969-),男, 河南上蔡人, 副研究员, 1997年在读博士生,主要从事GPS观测数据处理及利用GPS资料研究地壳运动和形变。

Data procession of the first epoch measurement of the crustal movement observation network in China

MENG Guo-jie1, ZHAO Cheng-kun2, GU Guo-hua1, NIU Hong-ye1, ZHENG Gui-ming1, SUN Shu-ying1   

  1. 1. Center for Analysis and Prediction, CSB, Beijing 100036, China;
    2. No. 1 Crustal deformation mov ement Center, CSB, Tianjin 300180, China
  • Online:2001-01-31 Published:2022-10-27

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摘要： 介绍了中国地壳运动观测网络的布设、基准站和基本站首期观测情况。利用GAM IT和GLOBK软件对首期观测数据进行了处理,计算结果归算到ITRF97框架上。单天整体解结果表明: 基线重复性N S向分量为2.28+0.87×10-9×S, EW向分量为3.67+0.82×10-9×S,高程分量为6.84+1.29×10-9×S(S为GPS站间距离,以mm为单位)。对基准网和基本网的整体平差结果表明: 点位精度水平分量为2～3mm,高程分量为3～5mm,基准网和基本网首期观测达到了设计要求。

关键词: GPS, 基线, 地壳形变, 数据处理

Abstract: The dist ribution and the fi rst epoch measurement of the crustal mov ement o bserv ation network in China are described. The GPS observ atio nal clata of the fiducial network and basic netw ork is processed with di fferent package of GAM IT/GLOBK. The computa tional resultsare obtained with IT RF97 as reference f rame. Results show that the repea tabili ty of baseline N-S compo nent is 2.28+0.87×10-9×S, the one of E-W component is 3.67+0.82×10-9×S, and the one of vertical component is 6.84+1.29×10-9×S, where S is dista nce betw een GPS sta tions withunit of mm. Af ter the integ ral adjustment of the fiducial netwo rk and basic network, it shows that the hori zontal compo nent of coordinate preci sion of stations is 2～3mm, the vertical compo nent is 3～5mm. It can be co ncluded that the first epoch measurements meet the requi rements of design.

Key words: GPS, Baseline, Crustal deformation, Data processing

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