利用地基双频段微波辐射计遥感宁夏大气汽态水含量  

Remote measuring water vapor distribution of Ningxia atmosphere with ground-based dual-channel microwave radiator

作　　者：赵维忠[1] 孙艳桥[1] 桑建人[1] 翟涛[1] 

机构地区：[1]宁夏气象防灾减灾重点实验室,宁夏银川750002

出　　处：《宁夏工程技术》2011年第1期7-11,19,共6页Ningxia Engineering Technology

摘　　要：利用2008年5月5日—9月28日地基双频段微波辐射计在宁夏飞机人工增雨基地的探测资料,分析了汽态水含量逐月和逐时统计特征及不同天气背景下的变化规律,以及汽态水含量降水前后的变化特征,并得出了初步结论.其中,9月22日的降雨个例分析表明,降雨前2h汽态水含量Q值开始增大,随后有所降低,降雨前30min汽态水含量Q值迅速增大,开始降雨时达最大值;同时,发现在云状、总云量、低云量大致相同的情况下,Q值在降雨前比降雨后大1倍左右.Using the remote measuring data of ground-based dual-channel microwave radiator which is placed in Aircraft Artificial Rainfall Base of Ningxia from May 5 to September 28 of 2008, We analysed the water vapor content variation per month and hour and which based on different weather context, and analysed the variation of water vapor content before and after rainfall, eventually we got the preliminary conclusions. The Case Study of a typical rainfall in September 22 showed that the Q value which was water vapor content bcgined to increase two hours before it started to rain, then decreased slightly, but increased rapidly half-hour before it started to rain and reached the max when it started to rain. At the same time we observed that the Q value before the rainfall was twice size of it when the rainfall just finished.

关 键 词：微波辐射计 汽态水含量 人工增雨 

分 类 号：P401[天文地球—大气物理学与大气环境]