银川地区大气水汽、云液态水含量特性的初步分析  

Preliminary Analysis of the Characteristics of Atmosphere Water Vapor and Cloud Liquid Water in Yinchuan Area

作　　者：田磊[1] 孙艳桥[1] 胡文东[1] 杨建玲[1] 翟涛[1] 桑建人[1] 常倬林[1] 舒志亮[1] 

机构地区：[1]宁夏气象科学研究所宁夏气象防灾减灾重点实验室,宁夏银川750002

出　　处：《高原气象》2013年第6期1774-1779,共6页Plateau Meteorology

基　　金：国家自然科学基金项目(41065005);公益性行业(气象)科研专项(GYHY201306027);宁夏自然科学基金项目(NZ12279)

摘　　要：基于双通道微波辐射计资料和地面常规气象资料,分析了银川地区不同季节大气水汽含量和云液态水含量的日变化特征及各个时次的降水分布。结果表明,在银川地区,一年观测期内的大气水汽含量逐月变化与多年(1951-2010年)平均降水量逐月变化的相关性较好,相关系数达0.94;大气水汽含量的高值区出现在中午到傍晚时段,低值区出现在日出前后。春、夏、秋季夜间的云液态水含量大于白天;云液态水含量的高值区出现在日出前和傍晚,这种情况在夏、秋季尤为明显;云液态水含量和大气水汽两者间的日变化相关性不显著。Based on the data obtained with a ground-based dual-channel microwave radiometer and the precipitation data, the daily variation characteristics of atmosphere water vapor content, cloud liquid water content and the distribution of precipitation on each hour in Yinchuan area were analyzed. The results show that： The atmosphere water vapor content in Yinchuan area has a significant correlation with mean annual （1951-2010） precipitation; The higher value of atmosphere water vapor content appeared from afternoon to evening, the lower values were near the sunrise. Cloud liquid water content during spring, summer and autumn was higher at night time than that in daytime; The higher value of cloud liquid water content appeared near the sunrise and evening, especially in the summer and autumn; There were no significant correlations between the atmosphere water vapor amount and cloud liquid water content.

关 键 词：微波辐射计 大气水汽 云液态水含量 日变化特征 

分 类 号：P481[天文地球—大气科学及气象学]