DOI: 10.1002/2015GL066764
论文题名: Air moisture control on ocean surface temperature, hidden key to the warm bias enigma
作者: Hourdin F. ; Gəinusə-Bogdan A. ; Braconnot P. ; Dufresne J.-L. ; Traore A.-K. ; Rio C.
刊名: Geophysical Research Letters
ISSN: 0094-8315
EISSN: 1944-8046
出版年: 2015
卷: 42, 期: 24 起始页码: 10885
结束页码: 10893
语种: 英语
英文关键词: climate
; coupling
; modeling
; warm bias
Scopus关键词: Atmospheric humidity
; Climate models
; Couplings
; Evaporation
; Evaporative cooling systems
; Humidity control
; Models
; Moisture control
; Oceanography
; Surface properties
; Surface waters
; Atmospheric simulations
; Climate
; Multi-Model Simulations
; Ocean surface temperature
; Sea surface temperature (SST)
; Stratocumulus clouds
; Temperature adjustment
; Warm bias
; Atmospheric temperature
; amplitude
; atmosphere-ocean coupling
; atmospheric modeling
; climate modeling
; cooling
; dispersion
; ensemble forecasting
; error analysis
; evaporation
; heating
; moisture content
; radiative transfer
; relative humidity
; saturation
; sea surface temperature
; stratocumulus
; tropical region
英文摘要: The systematic overestimation by climate models of the surface temperature over the eastern tropical oceans is generally attributed to an insufficient oceanic cooling or to an underestimation of stratocumulus clouds. We show that surface evaporation contributes as much as clouds to the dispersion of the warm bias intensity in a multimodel simulations ensemble. The models with the largest warm biases are those with the highest surface heating by radiation and lowest evaporative cooling in atmospheric simulations with prescribed sea surface temperatures. Surface evaporation also controls the amplitude of the surface temperature response to this overestimated heating, when the atmosphere is coupled to an ocean. Evaporation increases with temperature both because of increasing saturation humidity and of an unexpected drying of the near-surface air. Both the origin of the bias and this temperature adjustment point to the key role of near-surface relative humidity and its control by the atmospheric model. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84955209643&doi=10.1002%2f2015GL066764&partnerID=40&md5=a961d178f1abbc82f13f8bb70d1843c3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7931
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Laboratoire de Météorologie Dynamique, IPSL/UPMC Univ Paris 06, Sorbone Universités, CNRS, Paris, France
Recommended Citation:
Hourdin F.,Gəinusə-Bogdan A.,Braconnot P.,et al. Air moisture control on ocean surface temperature, hidden key to the warm bias enigma[J]. Geophysical Research Letters,2015-01-01,42(24).