Arid
DOI10.1038/NGEO1590
Intensification of Northern Hemisphere subtropical highs in a warming climate
Li, Wenhong1; Li, Laifang1; Ting, Mingfang2; Liu, Yimin3
通讯作者Li, Wenhong
来源期刊NATURE GEOSCIENCE
ISSN1752-0894
EISSN1752-0908
出版年2012
卷号5期号:11页码:830-834
英文摘要

Semi-permanent high-pressure systems over the subtropical oceans, known as subtropical highs, influence atmospheric circulation, as well as global climate. For instance, subtropical highs largely determine the location of the world’s subtropical deserts, the zones of Mediterranean climate and the tracks of tropical cyclones. The intensity of two such high-pressure systems, present over the Northern Hemisphere oceans during the summer, has changed in recent years. However, whether such changes are related to climate warming remains unclear. Here, we use climate model simulations from the Intergovernmental Panel on Climate Change Fourth Assessment Report, reanalysis data from the 40-year European Centre for Medium-Range Weather Forecasts, and an idealized general circulation model, to assess future changes in the intensity of summertime subtropical highs over the Northern Hemisphere oceans. The simulations suggest that these summertime highs will intensify in the twenty-first century as a result of an increase in atmospheric greenhouse-gas concentrations. We further show that the intensification of subtropical highs is predominantly caused by an increase in thermal contrast between the land and ocean. We suggest that summertime near-surface subtropical highs could play an increasingly important role in regional climate and hydrological extremes in the future.


类型Article
语种英语
国家USA ; Peoples R China
收录类别SCI-E
WOS记录号WOS:000310707900023
WOS关键词ASIAN SUMMER MONSOON ; ATMOSPHERIC CIRCULATION ; WESTERN PACIFIC ; UNITED-STATES ; ANTICYCLONES ; VARIABILITY ; SCALE ; MECHANISMS ; WESTWARD ; WEATHER
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
来源机构中国科学院大气物理研究所
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/174162
作者单位1.Duke Univ, Nicholas Sch Environm, Durham, NC 27708 USA;
2.Columbia Univ, Lamont Doherty Earth Observ, Earth Inst, Palisades, NY 10964 USA;
3.Chinese Acad Sci, State Key Lab Numer Modeling Atmospher Sci & Geop, Inst Atmospher Phys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714
Li, Wenhong,Li, Laifang,Ting, Mingfang,et al. Intensification of Northern Hemisphere subtropical highs in a warming climate[J]. 中国科学院大气物理研究所,2012,5(11):830-834.
APA Li, Wenhong,Li, Laifang,Ting, Mingfang,&Liu, Yimin.(2012).Intensification of Northern Hemisphere subtropical highs in a warming climate.NATURE GEOSCIENCE,5(11),830-834.
MLA Li, Wenhong,et al."Intensification of Northern Hemisphere subtropical highs in a warming climate".NATURE GEOSCIENCE 5.11(2012):830-834.
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