郑增记;范丽红;

• 1:陕西省地震局
• 2:中国科学院上海天文台
• 3:中国科学院国家授时中心
• 4:长安大学地质工程与测绘学院

摘要(Abstract)：

针对传统的全球水文同化模型计算陆地垂直负荷形变的不确定度问题,该文采用GPS、GRACE以及GLDAS3种数据对滇东南13个GPS连续站的垂直负荷形变进行了综合的分析。结果表明:GPS垂向形变时间序列中,陆地水负荷形变显著,高值达12 mm,其中GRACE的贡献值为32.1%,GLDAS的贡献值为26.9%;对于初相位而言,GPS、GRACE、GLDAS三者符合得很好;对于振幅而言,GPS与GRACE的振幅较为接近,GLDAS的振幅最小;通过主成分分析方法所获取的GPS共模误差与GRACE的相关性高达0.90。虽然GRACE的空间分辨率较低,但GRACE为连续监测地表垂直负荷形变提供了一种有效和可靠的手段。

关键词(KeyWords)： 全球定位系统;重力恢复与气候实验;全球陆地数据同化系统;滇东南;垂直负荷形变

Abstract:

Keywords:

基金项目(Foundation): 中国地震局监测、预测、科研三结合课题项目(CEA-JC/3JH-162705);; 陕西省地震局启航与创新基金项目(201401,201704);; 中央高校基本科研业务费项目(CHD310826165018)

作者(Authors): 郑增记;范丽红;

DOI: 10.16251/j.cnki.1009-2307.2019.05.008

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