气象2017，Vol.43Issue(3)：315-322,8.DOI:10.7519/j.issn.1000-0526.2017.03.007
夏季云贵高原地区降水特征及云水资源的匹配
Spatio-Temporal Characteristics of Precipitation and Water Vapor Resource over the Yunnan-Guizhou Plateau in Summer
摘要
Abstract
Based on high resolution (0.5°×0.5°)daily precipitation data from 1961 to 2010,the spatio-tem-poral characteristics of summer rainfall over the eastern,western and whole Yunnan-Guizhou Plateau (hereafter YGP)were investigated.Besides,using the European Centre for Medium-Range Weather Fore-casts (ECMWF)Interim Reanalysis data (ERA-Interim hereafter)from 1979 to 2010,we examined the average water vapor flux over the YGP in summer.The results show that the distribution of climatological annual precipitation in YGP is uneven.A dry center is located in the middle of the western YGP and it in-creases gradually southward and westward.Meanwhile,precipitation over the eastern YGP decreases from southeast to northwest.The YGP is divided into eastern YGP (EYGP)and western YGP (WYGP).The precipitation over the two parts increases with higher increase rate of rainfall.In terms of water vapor transport,it mainly transports from southern and western boundaries to northern and eastern boundaries of the YGP.The whole YGP acts as a water vapor source annually.The net water vapor is positive in EYGP but negative in WYGP.The precipitation,however,increases over both regions.The water vapor over the WYGP is mainly from the northern part of the Bay of Bengal,the northern South China Sea and the area from the Hengduan Mountains to Sichuan Basin.As for the EYGP,the moisture is mainly from the northern South China Sea and western Sichuan Basin.关键词
云贵高原/云水资源/水汽输送与收支Key words
Yunnan-Guizhou Plateau/water vapor resource/water vapor transport flux and budget分类
天文与地球科学引用本文复制引用
任冉,单婵,张羽,丁维新,顾源,娄丹..夏季云贵高原地区降水特征及云水资源的匹配[J].气象,2017,43(3):315-322,8.基金项目
国家自然科学基金项目(41330529和41175077)共同资助 （41330529和41175077）
