DOI: 10.1175/JCLI-D-15-0151.1
Scopus记录号: 2-s2.0-84946200136
论文题名: The relationship between atmospheric convective radiative effect and net energy transport in the tropical warm pool
作者: Harrop B.E. ; Hartmann D.L.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 21 起始页码: 8620
结束页码: 8633
语种: 英语
Scopus关键词: Atmospheric temperature
; Budget control
; Clouds
; Heat radiation
; Heating
; Principal component analysis
; Radiant heating
; Surface waters
; Tropics
; Water vapor
; Atmospheric energy
; Cloud optical thickness
; Cloud radiative effects
; Increasing sea-surface temperatures
; Outgoing longwave radiation
; Top of the atmospheres
; Tropical atmospheres
; Upper tropospheric water vapors
; Oceanography
; atmospheric convection
; cloud radiative forcing
; convective cloud
; energy flux
; longwave radiation
; radiation budget
; sea surface temperature
; troposphere
; warm pool
; water vapor
英文摘要: Reanalysis data and radiation budget data are used to calculate the role of the atmospheric cloud radiative effect in determining the magnitude of horizontal export of energy by the tropical atmosphere. Because tropical high clouds result in net radiative heating of the atmosphere, they increase the requirement for the atmosphere to export energy from convective regions. Increases in upper-tropospheric water vapor associated with convection contribute about a fifth of the atmospheric radiative heating anomaly associated with convection. Over the warmest tropical oceans, the radiative effect of convective clouds and associated water vapor is roughly two-thirds the value of the atmospheric energy transport. Cloud radiative heating and atmospheric heat transport increase at the same rate with increasing sea surface temperature, suggesting that the increased energy export is supplied by the radiative heating associated with convective clouds. The net cloud radiative effect at the top of the atmosphere is insensitive to changes in SST over the warm pool. Principal component analysis of satellite-retrieved cloud data reveals that the insensitivity of the net cloud radiative effect to SST is the result of changes in cloud amount offsetting changes in cloud optical thickness and cloud-top height. While increasing upward motion makes the cloud radiative effect more negative, that decrease is offset by reductions in outgoing longwave radiation owing to increases in water vapor. © 2015 American Meteorological Society. 资助项目: NSF, Norsk Sykepleierforbund
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50740
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States
Recommended Citation:
Harrop B.E.,Hartmann D.L.. The relationship between atmospheric convective radiative effect and net energy transport in the tropical warm pool[J]. Journal of Climate,2015-01-01,28(21)