大地测量与地球动力学2018，Vol.38Issue(6)：587-590,597,5.DOI:10.14075/j.jgg.2018.06.008
利用CORS观测资料反演四川地区水汽含量及其变化特征分析
Analysis of Precipitable Water Vapor and Its Variations in Sichuan Using CORS Observation Data
摘要
Abstract
Using GAMIT software and observation data from 58 CORS stations in Sichuan province from 2012 to 2014,precipitable water vapor (PWV) is deduced.The spatial and temporal distributive characteristics and variation trends of PWV in Sichuan province in the past three years are analyzed.The results show that the spatial distribution of PWV is higher in the east than in the west.Using multiple linear regression and principal component analysis,the relation of PWV and terrain can be linearized.Taking the CHDU,YBIN and HONY stations in Sichuan province as examples,the method of empirical mode decomposition combined with spectrum analysis is used to reflect the various periodic characteristics.The results show that the three stations have several PWV cycles.关键词
地基GPS气象学/GAMIT/水汽含量/克里金插值Key words
ground-based GPS meteorology/GAMIT/precipitable water vapor/Kriging interpolation分类
天文与地球科学引用本文复制引用
杨菂,丁一航,吴康良,罗晨曦..利用CORS观测资料反演四川地区水汽含量及其变化特征分析[J].大地测量与地球动力学,2018,38(6):587-590,597,5.基金项目
国家自然科学基金(41374032).National Natural Science Foundation of China,No.41374032. （41374032）
