globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-12-00233.1
Scopus记录号: 2-s2.0-84878155033
论文题名:
The changing energy balance of the polar regions in a warmer climate
作者: Bengtsson L.; Hodges K.I.; Koumoutsaris S.; Zahn M.; Berrisford P.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期:10
起始页码: 3112
结束页码: 3129
语种: 英语
Scopus关键词: Atmospheric circulation ; Clouds and the Earth's radiant energy systems ; Dry static energy ; High resolution simulations ; Intergovernmental panel on climate changes ; Possible mechanisms ; Surface energy fluxes ; Surface solar radiation ; Solar radiation ; Sun ; Climate change ; albedo ; atmospheric circulation ; climate modeling ; energy balance ; energy flux ; Intergovernmental Panel on Climate Change ; net radiation ; polar region ; solar radiation ; Arctic
英文摘要: Energy fluxes for polar regions are examined for two 30-yr periods, representing the end of the twentieth and twenty-first centuries, using data from high-resolution simulations with the ECHAM5 climate model. The net radiation to space for the present climate agrees well with data from the Clouds and the Earth's Radiant Energy System (CERES) over the northern polar region but shows an underestimation in planetary albedo for the southern polar region. This suggests there are systematic errors in the atmospheric circulation or in the net surface energy fluxes in the southern polar region. The simulation of the future climate is based on the Intergovernmental Panel on Climate Change (IPCC)A1B scenario. The total energy transport is broadly the same for the two 30-yr periods, but there is an increase in the moist energy transport on the order of 6 W m-2 and a corresponding reduction in the dry static energy. For the southern polar region the proportion of moist energy transport is larger and the dry static energy correspondingly smaller for both periods. The results suggest a possible mechanism for the warming of the Arctic that is discussed. Changes between the twentieth and twenty-first centuries in the northern polar region show the net ocean surface radiation flux in summer increases~18 W m-2 (24%). For the southern polar region the response is different as there is a decrease in surface solar radiation. It is suggested that this is caused by changes in cloudiness associated with the poleward migration of the storm tracks. © 2013 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51927
Appears in Collections:气候变化事实与影响

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作者单位: Natural Environment Research Council National Centre for Earth Observation, University of Reading, Whiteknights, Reading, United Kingdom; International Space Science Institute, Bern, Switzerland; National Centre for Atmospheric Science-Climate and European Centre for Medium-Range Forecasts, Shinfield Park, Reading, United Kingdom

Recommended Citation:
Bengtsson L.,Hodges K.I.,Koumoutsaris S.,et al. The changing energy balance of the polar regions in a warmer climate[J]. Journal of Climate,2013-01-01,26(10)
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