山东气象2017，Vol.37Issue(2)：83-89,7.DOI:10.19513/j.cnki.issn2096-3599.2017.02.010
济南地区大气可降水量三种观测反演资料的对比分析
A comparison of datasets of precipitable water vapor over Jinan retrieved by three kinds of equipments
摘要
Abstract
Precipitable water vapor is one of the key factors in study of atmospheric radiation transfer and absorption, global wide heat transfer, and prediction of heavy rainfall.Using precipitable water vapor data in 2015 retrieved by GPS/MET, microwave radiometer and L-band sounding respectively at Zhangqiu Station, the characteristics of the 3 kinds of datasets are studied.The results show that the variation trends of the 3 kinds of datasets are similar, but with significant systematic deviations.The mean values of precipitable water vapor from big to small are retrieved by GPS/MET, microwave radiometer and L-band sounding respectively.The mean deviations among the three kinds of datasets have little changes in different seasons, while the mean deviation of dataset retrieved by GPS/MET from dataset retrieved by microwave radiometer is about 4.5 mm.However, there are significant seasonal changes in the spread of deviation, which reaches its largest value in summer, followed by autumn, spring and winter.Since atmospheric water vapor content at 12:00 UTC is greater than that at 00:00 UTC, the spread of deviation of precipitable water vapor is always larger at 12:00 UTC than that at 00:00 UTC, and the relative error at 12:00 UTC is always less than or equal to that at 00:00 UTC.关键词
大气可降水量/GPS/MET/微波辐射计/探空Key words
precipitable water vapor/GPS/MET/microwave radiometer/sounding分类
天文与地球科学引用本文复制引用
王洪,雷恒池,杨超,宋永鹏,孟金,徐晓琳..济南地区大气可降水量三种观测反演资料的对比分析[J].山东气象,2017,37(2):83-89,7.基金项目
山东省气象局科研项目(2014SDQN07,2014SDQXZ03) （2014SDQN07,2014SDQXZ03）
