基于地基微波辐射计的羊卓雍错地区云水特征分析  

作　　者：唐利琴 刘俊卿 豆永丽 央金卓玛 益西卓玛 德吉白玛 

机构地区：[1]西藏自治区人工影响天气中心,拉萨850000 [2]西藏自治区气象信息网络中心,拉萨850000

出　　处：《科技创新与应用》2024年第33期87-90,共4页Technology Innovation and Application

基　　金：2023年度中国气象局创新发展专项(CXFZ2023J042);西藏自治区科技计划项目-揭榜挂帅专项(XZ202301ZY0044G)。

摘　　要：基于2020年1—10月西藏浪卡子气象站地基微波辐射计观测的水汽总量和路径液水含量数据,该文分析西藏羊卓雍错地区大气云水特征并探讨其在人工影响天气中的应用。结果表明,羊卓雍错地区大气水汽总量和路径液水含量呈单峰分布,峰值出现在7月,年均值分别为7.88 mm和0.53 mm;5—9月羊卓雍错地区大气水汽总量平均值大于11 mm,降水日和非降水日的差值不大,表明雨季大气水汽总量充沛且稳定;干季,羊卓雍错地区大气水汽总量的日变化表现为白天高夜间低,而雨季则表现为中午低傍晚高;降水开始前1个小时大气水汽总量、路径液水含量存在突增现象,可作为降水预报的参考量之一。Based on the total water vapor and path liquid water content data observed by ground-based microwave radiometer at Langkazi Meteorological Station in Xizang from January to October 2020,this paper analyzes the characteristics of atmospheric cloud water in the Yangzhuoyong Lake area of Xizang and discusses its application in artificial weather modification.The results show that:The total atmospheric water vapor and path liquid water content in the Yangzhuoyong Lake area show a single peak distribution,with the peak value appearing in July,with annual average values of 7.88 mm and 0.53 mm respectively.From May to September,the average total atmospheric water vapor in the Yangzhuoyong Lake area was greater than 11 mm,and the difference between precipitation days and non-precipitation days was not large,indicating that the total atmospheric water vapor was abundant and stable in the rainy season.In the dry season,the daily change of total atmospheric water vapor in the Yangzhuoyong Lake area is higher during the day and lower at night,while in the rainy season,it is lower at noon and higher in the evening.There is a sudden increase in the total amount of atmospheric water vapor and path liquid water content one hour before the start of precipitation,which can be used as one of the reference quantities for precipitation prediction.

关 键 词：羊卓雍错地区 微波辐射计 大气水汽总量 路径液水含量 峰值 

分 类 号：P407.7[天文地球—大气科学及气象学]