马下平,赵立都

• 1:西安科技大学测绘科学与技术学院
• 2:重庆交通大学土木工程学院

摘要(Abstract)：

针对中国大陆构造环境监测网络(陆态网络)中观测数据处理的期数过少或解算成果的坐标系统不统一等问题,该文在ITRF2008中对陆态网络239个GNSS基准站从2010年1月至2013年8月的观测数据进行解算,获取站点的坐标时间序列,估计了站点的水平和垂直运动速度场,并分析了中国大陆地壳运动特征。结果表明:GNSS基准站在ITRF2008中的坐标时间序列整体上符合线性变化趋势,东西方向的幅度变化大,高程方向受观测噪声的影响较大一些;高程方向相比较水平方向的年周期性更为明显;水平速度场明显有自西向东运动的趋势,且西藏块体中测站变化最为明显;垂直运动速度场中,华中、华南、华东块体中测站存在较低速率的下降,其他块体的测站存在较低速率的隆升。

关键词(KeyWords)： GNSS基准站;坐标时间序列;水平速度场;垂直速度场

Abstract:

Keywords:

基金项目(Foundation): 西安科技大学博士启动金项目(2016QDJ005);西安科技大学培育基金项目(201714)

作者(Author): 马下平,赵立都

DOI: 10.16251/j.cnki.1009-2307.2018.08.001

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