资源描述：
《青藏高原夏季上空水汽含量演变特征及其与降水的关系_英文_》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、J.Geogr.Sci.2012,22(5):795-809DOI:10.1007/s11442-012-0964-8©2012SciencePressSpringer-VerlagSpatialdistributionofatmosphericwatervaporanditsrelationshipwithprecipitationinsummerovertheTibetanPlateau111,21,3ZHOUShunwu,WUPing,WANGChuanhui,HANJuncai1.CollegeofAtm
2、osphericSciences,NanjingUniversityofInformationScience&Technology,Nanjing210044,China;2.AnhuiMeteorologicalBureau,Hefei230061,China;3.ShijiazhuangMeteorologicalBureauofHebeiProvince,Shijiazhuang050081,ChinaAbstract:Byusingtheobservedmonthlymeantemperatureandh
3、umiditydatasetsof14ra-diosondestationsandmonthlymeanprecipitationdataof83surfacestationsfrom1979to2008overtheTibetanPlateau(TP),therelationshipbetweentheatmosphericwatervapor(WV)andprecipitationinsummerandtheprecipitationconversionefficiency(PEC)overtheTParea
4、nalyzed.Theresultsareobtainedasfollows.(1)ThesummerWVdecreaseswithincreasingaltitude,withthelargestvalueareaobservedinthenortheasternpartoftheTP,andthesecondlargestvalueareainthesoutheasternpartoftheTP,whilethenorthwesternpartisthelowestvaluearea.Thesummerpre
5、cipitationdecreasesfromsoutheasttonorth-west.(2)ThesummerWVpresentstwomainpatternsbasedontheEOFanalysis:thewholeregionconsistent-typeandthenorth-southopposite-type.Thenorth-southopposite-typeofthesummerWVissimilartothefirstEOFmodeofthesummerprecipitationandbo
6、thoftheirzerolinesarelocatedtothenorthoftheTanggulaMountains.(3)Thesummerprecipitationismore(less)inthesouthern(northern)TPintheyearswiththedistributionofdeficientsummerWVinthenorthwhileabundantinthesouth,andviceversa.(4)ThePECovertheTPisbetween3%and38%andith
7、assignificantspatialdifferenceinsummer,whichisobviouslybiggerinthesouthernTPthanthatinthenorthernTP.Keywords:theTibetanPlateau;watervaporcontent;precipitation;precipitationconversionefficiency1IntroductionTheTibetanPlateau(TP)isthehighest(averaged>4000m)onthe
8、Earthandissurroundedbythehighestmountainsintheworld.Itrepresentssomeofthemostcomplexterrainoftheglobe.Itisconsideredtobe“ChinawatertowerorAsianwatertower”.Thedistributionofatmosphericwate
