DOI: 10.1002/2014GL061145
论文题名: Role of clouds and land-atmosphere coupling in midlatitude continental summer warm biases and climate change amplification in CMIP5 simulations
作者: Cheruy F. ; Dufresne J.L. ; Hourdin F. ; Ducharne A.
刊名: Geophysical Research Letters
ISSN: 0094-9771
EISSN: 1944-9502
出版年: 2014
卷: 41, 期: 18 起始页码: 6493
结束页码: 6500
语种: 英语
英文关键词: climate change
; CMIP5
; land-atmosphere coupling
; model biases
Scopus关键词: Climate models
; Evaporation
; Moisture
; Soil moisture
; Soils
; Climate change projections
; CMIP5
; Coupled Model Intercomparison Project
; Evaporative fraction
; Land-atmosphere couplings
; Model bias
; Short-wave radiation
; Summer temperature
; Climate change
; altitude
; climate change
; climate modeling
; cloud
; cloud cover
; continental shelf
; evaporation
; numerical model
; soil moisture
; solar radiation
; summer
英文摘要: Over land, most state-of-the-art climate models contributing to Coupled Model Intercomparison Project Phase 5 (CMIP5) share a strong summertime warm bias in midlatitude areas, especially in regions where the coupling between soil moisture and atmosphere is effective. The most biased models overestimate solar incoming radiation, because of cloud deficit and have difficulty to sustain evaporation. These deficiencies are also involved in the spread of the summer temperature projections among models in the midlatitude; the models which simulate a higher-than-average warming overestimate the present climate net shortwave radiation which increases more-than-average in the future, in link with a decrease of cloudiness. They also show a higher-than-average reduction of evaporative fraction in areas with soil moisture-limited evaporation regimes. Over these areas, the most biased models in the present climate simulate a larger warming in response to climate change which is likely to be overestimated. Key Points Systematic summer warm biases in regions of strong soil-atmosphere couplingMost biased models underestimate evaporative fraction and cloudsMost biased models show a stronger warming in climate change projections ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84911165066&doi=10.1002%2f2014GL061145&partnerID=40&md5=485c7ba67266a20aed231967b3344844
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7035
Appears in Collections: 气候减缓与适应
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作者单位: CNRS/IPSL/LMD, Université Pierre et Marie Curie, Paris, France
Recommended Citation:
Cheruy F.,Dufresne J.L.,Hourdin F.,et al. Role of clouds and land-atmosphere coupling in midlatitude continental summer warm biases and climate change amplification in CMIP5 simulations[J]. Geophysical Research Letters,2014-01-01,41(18).