大地测量与地球动力学2017，Vol.37Issue(7)：721-725,5.DOI:10.14075/j.jgg.2017.07.010
基于小波变换的GPS水汽与气象要素相关性分析
Correlation Analysis of GPS PWV and Meteorological Elements Based on Wavelet Transform
摘要
Abstract
Precipitable water vapor is one of the key factors influencing weather and climate change;change in water vapor is closely related to temperature and atmospheric pressure.In this paper,we conduct a correlation analysis of GPS water vapor and meteorological factors by using GAMIT software solver the value of PWV for Beijing combined with meteorological data.Firstly,we used GAMIT software solver on the value of PWV for Beijing continuous observation network data from June 1,2009 to April 30,2012,in conjunction with atmospheric pressure data,to acquire station PWV sequence.Then we used wavelet transform method to break down and reconstruct the data for GPS PWV,temperature and atmospheric pressure and analyzed the correlation of new data.There is a positive correlation between the trend of GPS PWV sequence and temperature,and a significantly negatively correlation with atmospheric pressure.The PWV and atmospheric pressure have half-cycle and annual change;both appear in an obvious negative correlation.Temperature cycling for years,the best correlation of water vapor and temperature is in d13 reconstruction.There are significant positive correlation properties.关键词
GPS/水汽/气压/温度/小波变换Key words
GPS/precipitable water vapor/atmospheric pressure/temperature/wavelet transform分类
天文与地球科学引用本文复制引用
王勇,刘备,刘严萍,李江波..基于小波变换的GPS水汽与气象要素相关性分析[J].大地测量与地球动力学,2017,37(7):721-725,5.基金项目
天津市自然科学基金(17JCYBJC21600) （17JCYBJC21600）
河北省自然科学基金(D2015209204).Natural Science Foundation of Tianjin,No.17JCYBJC21600 （D2015209204）
Natural Science Foundation of Hebei Province,No.D2015209024. （）
