Arid
DOI10.1016/j.atmosenv.2011.08.048
Potential impact of spatial patterns of future atmospheric warming on Asian dust emission
Tsunematsu, Nobumitsu1; Kuze, Hiroaki2; Sato, Tomonori3; Hayasaki, Masamitsu4; Cui, Feifei2; Kondoh, Akihiko2
通讯作者Tsunematsu, Nobumitsu
来源期刊ATMOSPHERIC ENVIRONMENT
ISSN1352-2310
EISSN1873-2844
出版年2011
卷号45期号:37页码:6682-6695
英文摘要

Spatial patterns of future atmospheric warming presented by climate model projections indicate that the temperatures of the lower troposphere will increase markedly at high latitudes in the Northern Hemisphere and also the upper troposphere at low-middle latitudes. In this study, potential impacts of the spatial patterns of future atmospheric warming on Asian dust emission were investigated by performing numerical experiments using a dynamical downscaling method. After three significant Asian dust outbreak events were reproduced as control runs, initial and boundary conditions of the control runs were updated by adding differences in atmospheric variables between the future climate (2091-2100) and the recent climate (1991-2000) to execute pseudo global warming runs. The results showed that the dust emission fluxes in the main Asian dust sources (MADSs), i.e., the Taklimakan and Gobi deserts, decrease markedly in the future climate condition. The future decreases in the dust emission fluxes are likely to be caused by a combination of the relatively large increases in sea level pressures (SLPs) in MADSs and the small SLP changes to the north of MADSs, which reduces the meridional SLP gradients between the two areas and consequently weakens cold air outbreaks. The large SLP increases in MADSs may be due to a northward shift of storm tracks and increased atmospheric stabilities caused by the large upper-tropospheric warming at low-middle latitudes. The small SLP changes to the north of MADSs corresponded to the large increases in surface air temperatures, which would be influenced by the large lower-tropospheric warming at high latitudes. (C) 2011 Elsevier Ltd. All rights reserved.


英文关键词Asian dust emission Future global warming Dynamical downscaling WRF model Dust simulations
类型Article
语种英语
国家Japan
收录类别SCI-E
WOS记录号WOS:000296934800009
WOS关键词STORM FREQUENCY ; SURFACE WIND ; EAST-ASIA ; CLIMATE ; MODEL ; CHINA ; PARAMETERIZATION
WOS类目Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167265
作者单位1.Natl Res Inst Earth Sci & Disaster Prevent, Disaster Risk Res Unit, Tsukuba, Ibaraki, Japan;
2.Chiba Univ, Ctr Environm Remote Sensing, Inage Ku, Chiba, Japan;
3.Hokkaido Univ, Fac Environm Earth Sci, Kita Ku, Sapporo, Hokkaido, Japan;
4.Toyama Univ, Grad Sch Sci & Engn Res, Toyama 930, Japan
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GB/T 7714
Tsunematsu, Nobumitsu,Kuze, Hiroaki,Sato, Tomonori,et al. Potential impact of spatial patterns of future atmospheric warming on Asian dust emission[J],2011,45(37):6682-6695.
APA Tsunematsu, Nobumitsu,Kuze, Hiroaki,Sato, Tomonori,Hayasaki, Masamitsu,Cui, Feifei,&Kondoh, Akihiko.(2011).Potential impact of spatial patterns of future atmospheric warming on Asian dust emission.ATMOSPHERIC ENVIRONMENT,45(37),6682-6695.
MLA Tsunematsu, Nobumitsu,et al."Potential impact of spatial patterns of future atmospheric warming on Asian dust emission".ATMOSPHERIC ENVIRONMENT 45.37(2011):6682-6695.
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