干旱区生态环境知识资源中心(Arid): 西北干旱区夏季强干、湿事件降水环流及水汽输送的再分析

Arid

	西北干旱区夏季强干、湿事件降水环流及水汽输送的再分析
其他题名	Reanalyses of Precipitation Circulation and Vapor Transportation of Severe Dry and Wet Events in Summer in Arid Region of Northwest China
	蔡英 1; 宋敏红 1; 钱正安 2; 吴统文 3; 栾晨 1
来源期刊	高原气象
ISSN	1000-0534
出版年	2015
卷号	34 期号:3 页码:597-610
中文摘要	为深入分析西北内陆干旱区夏季降水的主要水汽源地及其输送通道,首先,梳理和评述了过去50年西北干旱区水汽输送的研究进展和问题; 接着,利用国家气象局信息中心近50年的实测降水及NCEP/NCAR再分析资料等,挑选更多有代表性的强干、湿日(月)事件,再进行环流和水汽输送的对比分析。主要结论如下: (1)过去西北干旱区各地的干、湿环流研究共识多,进展快;而水汽输送分析依旧众说纷纭。(2)过去的水汽输送分析联系降水环流不够;针对西北干旱区降水特点不够;还应加进数值模拟等分析手段。(3)在本文诊断分析和先前数值模拟基础上,指出西北内陆旱区夏季降水的主要水汽源地在东南沿海一带,它借助西行台风、西伸了的西太平洋副热带高压及柴达木低压等多个天气系统和西太平洋副热带高压西南侧东南风急流、西侧南风低空急流及河西偏东风等三支气流的次第密切配合,首先,水汽被输送到四川盆地;接着,被北输到西北区东部;继而,再被接力西输到河西走廊及南疆盆地东部。谓之"三支气流+两个中转站的三棒接力"式水汽输送模型。它是夏季输向西北内陆旱区的主要水汽输送通道。
英文摘要	In order to further analyze main water vapor origin area and its transportation path for precipitation in summer in inland arid region of Northwest China(NWC),first,the advancements and problems of the water vapor transportation in inland arid region of NWC in past 5 decades were summed up and reviewed,then the many strong,dry and wet month(or day)events in summer in NWC were again selected and the further comparison analyses of their circulation and water vapor transportation were in detail done by using the observed precipitation data etc in past 50 years from National Information Center of China Meteorological Administration and the US NCEP/NCAR reanalysis ones. The main results are shown as follows. (1)There are many common views and progresses about the dry and wet circulation patterns in the arid regions of NWC summer,but it not trure about their water vapor sources and transportation paths. (2)The water vapor transportation analyses done in the past decades did not link closely with the dominate precipitation patterns,did not take fully the precipitation features of inland arid area into consideration,and also did not use the test stool of the model simulation. (3)Based on the diagnostic analyses in the paper and our earlier numerical simulation of water vapor,we point out that the main water vapor origin in the inland arid areas,NWC summer is off the southeast China(SEC)coast,With the aid of both the weather systems: typhoon going westward,West Pacific Subtropical High(WPSH)moving westward and Qidam Basin lows and the flows: southeaster jet on the SW side of WPSH,souther one on the west side of WPSH and the easter in Gansu Corridor,first,the water vapor off the SE coast are transport by the SE jet to Sichuan Basin; then,by the souther jet,to the east part of NWC; again then,by the Easter in Gansu Corridor,to Gansu Corridor and the east part of south Xinjiang. So called as ’three baton relay water vapor transport model with three flows plus two transfer stations’.
中文关键词	中国西北干旱区 ; 强干、湿事件 ; 干、湿环流型 ; 聚类分析 ; 水汽输送通道
英文关键词	Inland arid region of NWC Severe dry and wet events Dry and wet circulation Cluster analysis Water vapor transportation path
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:5469549
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232830
作者单位	1.中国科学院寒区旱区环境与工程研究所, 中国科学院寒旱区陆面过程与气候变化重点实验室, 兰州, 甘肃 730000, 中国; 2.中国科学院寒区旱区环境与工程研究所, 中国科学院寒旱区陆面过程与气候变化重点实验室;;甘肃省干旱气候变化与减灾重点实验室, 兰州, 甘肃 730000, 中国; 3.中国气象局国家气候中心, 北京 100081, 中国
推荐引用方式 GB/T 7714	蔡英,宋敏红,钱正安,等. 西北干旱区夏季强干、湿事件降水环流及水汽输送的再分析[J]. 中国科学院西北生态环境资源研究院,2015,34(3):597-610.
APA	蔡英,宋敏红,钱正安,吴统文,&栾晨.(2015).西北干旱区夏季强干、湿事件降水环流及水汽输送的再分析.高原气象,34(3),597-610.
MLA	蔡英,et al."西北干旱区夏季强干、湿事件降水环流及水汽输送的再分析".高原气象 34.3(2015):597-610.