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乌鲁木齐夏季水汽日变化及其与降水的关系/Analysis on Daily Variation of Water Vapor and Its Relationship with Rainfall in Urumqi in Summer[J]
Authors
中国气象局乌鲁木齐沙漠气象研究所,新疆乌鲁木齐 830002
中国气象局乌鲁木齐沙漠气象研究所,新疆乌鲁木齐,830002
+7 more
姚俊强
新疆大学资源与环境科学学院,绿洲生态教育部重点实验室,新疆乌鲁木齐 830046
新疆师范大学地理科学与旅游学院,新疆乌鲁木齐 830054
杨青
赵丽
赵玲
韩雪云
Publication date
1 January 2013
Publisher
Abstract
利用2008年6-8月微波辐射计的观测资料和探空数据,对反演得到的温、湿度廓线进行对比分析,得出温、湿度廓线与探空数据具有很好的相关性,两种设备观测的水汽廓线总体趋势一致.微波辐射计观测的乌鲁木齐夏季水汽总量(PWV)呈明显的日循环特征,PWV平均为21.66 mm,从04:00-15:00逐渐减小,从15:00-23:00逐渐增加,最大值为22.44mm,最小值为20.89 mm,日变幅为1.55 mm,变化率7.1%.乌鲁木齐夏季降水主要发生在夜间,尤其是后半夜,这与PWV的日变化基本一致.降水前有一定的水汽积累,等达到一定量值时,在相应的动力机制影响下发生降水,降水结束后PWV值减小且急剧下降
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Last time updated on 29/11/2016