中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Recent progress in the impact of the Tibetan plateau on climate in China

文献类型:期刊论文

作者Liu Yimin; Bao Qing; Duan Anmin; Qian Zheng'an; Wu Guoxiong
刊名ADVANCES IN ATMOSPHERIC SCIENCES
出版日期2007-11-01
卷号24期号:6页码:1060-1076
ISSN号0256-1530
关键词Tibetan plateau TP-dipole cyclonic spiral quasi-biweekly oscillation
DOI10.1007/s00376-007-1060-3
通讯作者Liu Yimin(lym@lasg.iap.ac.cn)
英文摘要Studies of the impacts of the Tibetan Plateau (TP) on climate in China in the last four years are reviewed. It is reported that temperature and precipitation over the TP have increased during recent decades. From satellite data analysis, it is demonstrated that most of the precipitation over the TP is from deep convection clouds. Moreover, the huge TP mechanical forcing and extraordinary elevated thermal forcing impose remarkable impacts upon local circulation and global climate. In winter and spring, stream flow is deflected by a large obstacle and appears as an asymmetric dipole, making East Asia much colder than mid Asia in winter and forming persistent rainfall in late winter and early spring over South China. In late spring, TP heating contributes to the establishment and intensification of the South Asian high and the abrupt seasonal transition of the surrounding circulations. In summer, TP heating in conjunction with the TP air pump cause the deviating stream field to resemble a cyclonic spiral, converging towards and rising over the TP. Therefore, the prominent Asian monsoon climate over East Asia and the dry climate over mid Asia in summer are forced by both TP local forcing and Eurasian continental forcing. Due to the longer memory of snow and soil moisture, the TP thermal status both in summer and in late winter and spring can influence the variation of Eastern Asian summer rainfall. A combined index using both snow cover over the TP and the ENSO index in winter shows a better seasonal forecast. On the other hand, strong sensible heating over the Tibetan Plateau in spring contributes significantly to anchor the earliest Asian monsoon being over the eastern Bay of Bengal (BOB) and the western Indochina peninsula. Qualitative prediction of the BOB monsoon onset was attempted by using the sign of meridional temperature gradient in March in the upper troposphere, or at 400 hPa over the TP. It is also demonstrated by a numerical experiment and theoretical study that the heating over the TP leads to a significant variability in the atmospheric circulation on a quasi-biweekly timescale, bearing much similarity to that found from observational studies. Finally, some important issues for further work in understanding the impacts of the TP are raised.
收录类别ISTP ; SCI
WOS关键词QINGHAI-XIZANG PLATEAU ; ASIAN SUMMER MONSOON ; ATMOSPHERIC CIRCULATION ; SURFACE-LAYER ; EAST-ASIA ; RAINFALL ; HEAT ; SEA ; ONSET ; SNOW
WOS研究方向Meteorology & Atmospheric Sciences
WOS类目Meteorology & Atmospheric Sciences
语种英语
出版者SCIENCE CHINA PRESS
WOS记录号WOS:000251065000009
URI标识http://www.irgrid.ac.cn/handle/1471x/2555968
专题寒区旱区环境与工程研究所
通讯作者Liu Yimin
作者单位1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, LASG, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式
GB/T 7714
Liu Yimin,Bao Qing,Duan Anmin,et al. Recent progress in the impact of the Tibetan plateau on climate in China[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2007,24(6):1060-1076.
APA Liu Yimin,Bao Qing,Duan Anmin,Qian Zheng'an,&Wu Guoxiong.(2007).Recent progress in the impact of the Tibetan plateau on climate in China.ADVANCES IN ATMOSPHERIC SCIENCES,24(6),1060-1076.
MLA Liu Yimin,et al."Recent progress in the impact of the Tibetan plateau on climate in China".ADVANCES IN ATMOSPHERIC SCIENCES 24.6(2007):1060-1076.

入库方式: iSwitch采集

来源:寒区旱区环境与工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。