DOI: 10.1029/2012JD018629
论文题名: Direct radiative effects of sea salt for the Mediterranean region under conditions of low to moderate wind speeds
作者: Lundgren K. ; Vogel B. ; Vogel H. ; Kottmeier Ch.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 4 起始页码: 1906
结束页码: 1923
语种: 英语
英文关键词: direct radiative effect
; numerical modelling
; regional scale
; sea salt
Scopus关键词: Atmospheric aerosols
; Numerical models
; Optical properties
; Mediterranean region
; Radiation calculations
; Radiative effects
; Regional scale
; Satellite observations
; Sea salt aerosol
; Sea salts
; Strong dependences
; Wind effects
; aerosol
; longwave radiation
; numerical model
; optical depth
; sea salt
; shortwave radiation
; wind velocity
; Mediterranean Region
英文摘要: This study deals with the direct radiative effect of sea salt on the regional scale, within both the shortwave and longwave ranges. The COSMO-ART model system has been extended and applied for a large part of Europe and adjacent waters within this investigation. For the radiation calculations, we determined the sea salt optical properties based on Mie calculations, giving the optical properties for the three sea salt modes and eight spectral intervals. The simulated sea salt aerosol optical depth is found to show strong dependence on the 10 m wind speed under cloud-free conditions. This relation is best represented by a power law fit and compares well with satellite observations. For clear-sky conditions, the simulated sea salt direct radiative effects on the shortwave and longwave radiative budgets are approximately of the same order of magnitude, but with opposite signs. This causes the net radiative effect to approach zero, which leads to a low impact on the temperature for this area. Key PointsThe net sea salt direct radiative effect approaches zeroSea salt AOD shows a relation to wind in the form of a power law fitSea salt can contribute to radiative aerosol effects over land © 2012. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63919
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Institute for Meteorology and Climate Research, Karlsruhe Institute of Technology, Germany; Deutscher Wetterdienst (DWD), 63067 Offenbach, Germany
Recommended Citation:
Lundgren K.,Vogel B.,Vogel H.,et al. Direct radiative effects of sea salt for the Mediterranean region under conditions of low to moderate wind speeds[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(4)