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| 北京可降水量变化特征的地基GPS观测与分析 | |
| 引用本文： | 吴建军,王鑫,吕达仁,杜秉玉.北京可降水量变化特征的地基GPS观测与分析[J].南京气象学院学报,2007,30(3):377-382. |
| 作者姓名： | 吴建军 王鑫 吕达仁 杜秉玉 |
| 作者单位： | 1. 南京信息工程大学,遥感学院,江苏,南京,210044;中国科学院,大气物理研究所,北京,100029 2. 中国科学院,大气物理研究所,北京,100029 3. 南京信息工程大学,遥感学院,江苏,南京,210044 |
| 摘 要： | 利用GAMIT软件对2004年7月至2005年7月北京GPS观测数据进行解算,结合地面温度及气压观测数据,反演了1a时间内分辨率为2h的水汽总量序列,并与探空和微波辐射计的反演结果做了对比,均方根差分别为3.05mm和3.29mm,得到了北京地区水汽总量的季节变化特点及水汽与降水的相互关系,这对气象研究和天气预报有很好的作用. |
| 关 键 词： | 地基GPS 可降水量 加权平均温度 北京 可降水量 变化特征 地基 观测与分析 Technique Precipitable Water Beijing Features Variation Analysis 作用 天气预报 研究 相互关系 水汽总量 季节变化 地区 差分 均方根 |
| 文章编号： | 1000-2022（2007）03-0377-06 |
| 修稿时间： | 2006-03-162007-02-16 |
Observation and Analysis of the Variation Features of Beijing Precipitable Water by the Ground-Based GPS Technique |
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| WU Jian-jun,WANG Xin,Lü Da-ren,DU Bing-yu.Observation and Analysis of the Variation Features of Beijing Precipitable Water by the Ground-Based GPS Technique[J].Journal of Nanjing Institute of Meteorology,2007,30(3):377-382. | |
| Authors: | WU Jian-jun WANG Xin Lü Da-ren DU Bing-yu |
| Institution: | 1. School of Remote Sensing,NUIST,Nanjing 210044,China; 2. Institute of Atmospheric Physics ,Chinese Academy of Sciences,Beijing 100029 ,China |
| Abstract: | Using the GPS analysis software GAMIT and combined with the surface temperatures and pressures,the precipitable water vapor(WP) at a timal resolution of two hours has been retrieved from the GPS observations in Beijing from July 2004 to July 2005.Compared with the records of the radiometer and the water vapor radiometer,the results show a good agreement with the rms 3.05 mm and 3.29 mm respectively.Further,the seasonal variation of WP and the relationship between WP and rainfall in Beijing are also discussed in this paper,which are beneficial to the weather study and weather forecast. |
| Keywords: | ground-based GPS precipitable water vapor weighted mean temperature |
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