新疆山区低层云水资源时空分布特征

彭宽军; 陈勇航; 王文彩; 邱学兴; 林雄; 白鸿涛

新疆山区低层云水资源时空分布特征

Characteristics of spatial and temporal distribution of lower layer cloud water resources in Xinjiang mountain regions

摘要

摘要: 采用云与地球辐射能量系统(CERES)2003～2007年的CERESSSF Aqua MODIS云资料,选取新疆阿尔泰山、天山和昆仑山三大山区,通过考察云量和云液态水柱含量分析了低层云水资源的多年空间分布和季节变化特征。结果表明,三大山区多年平均的云量年平均区域值在24.4%～27.5%之间,云液态水柱含量在51～56.3g/m²之间。三大山区低层云量和云液态水柱含量有明显的季节变化特征。综合云量和云水柱含量来看,春季是三大山区低层云量资源最丰富的季节,冬季是三大山区低层云中的含水量最丰富的季节。

Abstract: The multi-year spatial distribution and seasonal variations of c bud coverage and liquid water path of lower layer clouds over the Altay,Tianshan and Kunlun Mountain ranges in Xinjiang are analyzed by using the CERES(Clouds and the Earth's Radiant Energy System) SSF (Single Satellite Footprint) Aqua MODIS cloud data product from 2003 to 2007.The results show that the averaged multi-year cloud coverage of the three mountain ranges are in the range of 24.4%-27.5%,and the averaged multi-year cloud liquid water path are between 51g/m²and 56.3g/m².Cloud coverage and liquid water path of lower layer clouds in the three mountainous regions exhibitlarge seasonal variations.Cloud coverage in spring and summer is larger than that in autumn and winter.Cloud coverage in spring is the most abundant,while the most abundant season for the cloud liquid water path is in winter for the three mountain regions.

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