中天山山区大气总水汽量和云液水量的遥感研究  

Study on Atmospheric Vapour and Cloud Liquid Water in Tianshan Mountains by Remote Sensing

作　　者：张建新[1] 廖飞佳[1] 王文新[1] 

机构地区：[1]中国气象局乌鲁木齐沙漠气象研究所新疆自治区人工影响天气办公室,新疆乌鲁木齐830002

出　　处：《中国沙漠》2003年第5期565-568,共4页Journal of Desert Research

基　　金：科技部2000年社会公益项目<新疆天山山区人工增雨综合技术研究>资助

摘　　要：使用QFW 1型双通道微波辐射计,于2002年盛夏(7月10日至8月5日)在天山山区乌鲁木齐河流域上风方的小渠子进行了大气积分水汽和云中积分液水量的遥感观测。观测表明;中天山山区盛夏的晴天平均大气水汽含量与目前公认的亚洲大气中的水汽含量相近;晴天的平均大气水汽量具有明显的日变化。对降水云系的液态水含量及其变化遥感监测表明:云系降水具有先兆性;不同类型降水性云的降水临界值不同;云液水由0 5mm开始上升到降水临界值的降水酝酿期的时间,可以作为天山山区人工增雨实施播云作业的重要参照指标。The ground\|based dual\|channel (23\^8 GHz & 31\^65 GHz) microwave radiometer was used to monitor the atmospheric vapour and cloud liquid water amount in the upper Urumqi River Basin in Tianshan Mountains. The result showed that the average atmospheric vapour content in middle Tianshan Mountains during summer sunshine is close to the acknowledged vapour content of Asia; and the atmospheric vapour content in the study area has a distinct diurnal change in sunny day. Cloud liquid water quantity of different precipitation clouds is indicative; various cloud systems have different precipitation threshold. The period when cloud liquid water quantity increases to the threshold from 0.5 mm could be taken as the time suitable for rainmaking.

关 键 词：大气水汽 微波辐射计 天山山区 遥感观测 先兆性 云系降水 

分 类 号：P41[天文地球—大气科学及气象学] P481