Regional atmospheric anomalies responsible for the 2009-2010 severe drought in China
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作者:
Lu, Er
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Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
NOAA Climate Predict Ctr, Camp Springs, MD 20746 USAChinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
Lu, Er
[1
,2
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Luo, Yali
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Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R ChinaChinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
Luo, Yali
[1
]
Zhang, Renhe
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Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R ChinaChinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
Zhang, Renhe
[1
]
Wu, Qiuxia
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Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R ChinaChinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
Wu, Qiuxia
[1
]
Liu, Liping
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Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R ChinaChinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
Liu, Liping
[1
]
机构:
[1] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing 100081, Peoples R China
[2] NOAA Climate Predict Ctr, Camp Springs, MD 20746 USA
The severe drought that emerged in summer 2009 and persisted in the subsequent fall and winter in southwest China caused a significant shortage of drinking and drainage water. Precipitation during the drought is much less than normal, and the meteorological drought extent exceeds the climatic mean in almost all the days during the period. The warmer-than-normal surface temperature facilitates the hydrological and agricultural drought through enhancing surface evaporation. The less-than-normal water vapor in the atmosphere and warmer-than-normal air temperature both contribute to the lower-than-normal relative humidity and thus the less-than-normal precipitation. The water vapor transport during the drought has no significant change in track but is much weaker in strength across the southwest. The weaker-than-normal water vapor transport and convergence in the fall and winter make it hard for the air to form heavy rains. The warmer-than-normal temperature corresponds to positive anomalies of geopotential thickness, with negative anomalies of geopotential height at lower levels but strong positive anomalies at middle and upper levels. The warmer-than-normal air temperature is important to the maintenance of the drought at this time of the year under the dry atmospheric condition. The persistent warm temperature makes it hard for the air to become saturated and thus hard for even light rains, which are efficient in mitigating drought, to form. The inherent mechanism in the atmosphere, namely, the positive feedback between less precipitation and warm temperature, helps maintain the drought.
机构:
Beijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China
Beijing Normal Univ, Key Lab Reg Geog, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China
Yun, Su
Jun, Yin
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Beijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China
Beijing Normal Univ, Key Lab Reg Geog, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China
Jun, Yin
Hong, Shen
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Beijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China
Beijing Normal Univ, Key Lab Reg Geog, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China
机构:
Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Gnomegen Inc, San Diego, CA 92121 USAChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Zhu, Na
Li, Peng
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Kunming Yanan Hosp, Kunming 650051, Yunnan, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Li, Peng
Yu, Jingfeng
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Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Yu, Jingfeng
Li, Yongdong
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Ningbo Municipal Ctr Dis Control & Prevent, Ningbo 315010, Zhejiang, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Li, Yongdong
Zhao, Jiuru
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Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Zhao, Jiuru
Xia, Han
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Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Xia, Han
Tang, Shuang
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Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Tang, Shuang
Zhang, Zhong
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Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Zhang, Zhong
Kou, Zheng
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Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Kou, Zheng
Yin, Shiyu
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Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Yin, Shiyu
Fan, Zhaojun
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Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
Fan, Zhaojun
Li, Tianxian
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Chinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R ChinaChinese Acad Sci, Wuhan Inst Virol, State Key Lab Virol, Wuhan 430071, Peoples R China
机构:
NIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Chinese Univ Hong Kong, Fac Med, Sch Publ Hlth & Primary Care, Stanley Ho Ctr Emerging Infect Dis, Hong Kong, Hong Kong, Peoples R ChinaNIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Tan, Yi
Guan, Wenda
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Guangzhou Med Univ, Affiliated Hosp 1, State Key Lab Resp Dis, Guangzhou, Guangdong, Peoples R ChinaNIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Guan, Wenda
Lam, Tommy Tsan-Yuk
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Univ Hong Kong, Sch Publ Hlth, Hong Kong, Hong Kong, Peoples R ChinaNIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Lam, Tommy Tsan-Yuk
Pan, Sihua
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Guangzhou Med Univ, Affiliated Hosp 1, State Key Lab Resp Dis, Guangzhou, Guangdong, Peoples R ChinaNIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Pan, Sihua
Wu, Shiguan
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Guangzhou Med Univ, Affiliated Hosp 1, State Key Lab Resp Dis, Guangzhou, Guangdong, Peoples R ChinaNIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Wu, Shiguan
Zhan, Yangqing
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Guangzhou Med Univ, Affiliated Hosp 1, State Key Lab Resp Dis, Guangzhou, Guangdong, Peoples R ChinaNIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Zhan, Yangqing
Viboud, Cecile
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NIH, Fogarty Int Ctr, Bethesda, MD 20892 USANIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Viboud, Cecile
Holmes, Edward C.
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NIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Univ Sydney, Sch Biol Sci, Sydney Emerging Infect & Biosecur Inst, Sydney, NSW 2006, Australia
Univ Sydney, Sydney Med Sch, Sydney, NSW 2006, AustraliaNIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
Holmes, Edward C.
Yang, Zifeng
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Guangzhou Med Univ, Affiliated Hosp 1, State Key Lab Resp Dis, Guangzhou, Guangdong, Peoples R China
Macau Univ Sci & Technol, Fac Chinese Med, Macau, Peoples R ChinaNIH, Fogarty Int Ctr, Bethesda, MD 20892 USA
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Jacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USAJacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USA
Stith, B. M.
Slone, D. H.
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Jacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USAJacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USA
Slone, D. H.
de Wit, M.
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Florida Fish & Wildlife Conservat Commiss FWC, Fish & Wildlife Res Inst FWRI, St Petersburg, FL 33701 USAJacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USA
de Wit, M.
Edwards, H. H.
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Florida Fish & Wildlife Conservat Commiss FWC, Fish & Wildlife Res Inst FWRI, St Petersburg, FL 33701 USAJacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USA
Edwards, H. H.
Langtimm, C. A.
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Jacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USAJacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USA
Langtimm, C. A.
Swain, E. D.
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US Geol Survey, Florida Water Sci Ctr, Ft Lauderdale, FL 33135 USAJacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USA
Swain, E. D.
Soderqvist, L. E.
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US Geol Survey, Florida Water Sci Ctr, Ft Myers, FL 33901 USAJacobs Technol Inc, US Geol Survey, SE Ecol Sci Ctr, Gainesville, FL 32605 USA
Soderqvist, L. E.
Reid, J. P.
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