DOI: 10.1002/grl.50081
论文题名: Effect of sea ice morphology during Arctic summer on atmospheric drag coefficients used in climate models
作者: Lüpkes C. ; Gryanik V.M. ; Rösel A. ; Birnbaum G. ; Kaleschke L.
刊名: Geophysical Research Letters
ISSN: 0094-9386
EISSN: 1944-9117
出版年: 2013
卷: 40, 期: 2 起始页码: 446
结束页码: 451
语种: 英语
Scopus关键词: Atmospheric fluxes
; Atmospheric process
; General circulation model
; Governing parameters
; Non-monotonic dependence
; Realistic modeling
; Remote sensing data
; Sea ice concentration
; Climate models
; Drag coefficient
; Lakes
; Morphology
; Sea ice
; air-sea interaction
; climate modeling
; drag coefficient
; general circulation model
; geographical distribution
; momentum
; remote sensing
; satellite data
; sea ice
; summer
; Arctic
英文摘要: Realistic modeling of polar sea ice dynamics and atmospheric processes over sea ice needs a detailed representation of the near-surface atmospheric fluxes of momentum. In this study, parametrizations of neutral drag coefficients mostly used in different general circulation models are compared with a recently developed parametrization including the impact of sea ice morphology. The new parametrization, using the sea ice and melt pond fraction as governing parameters, accounts for the effect of form drag caused by edges at leads, melt ponds, and floes. Based on remote sensing data of ice and melt pond fraction, it is shown that during Arctic summer the traditionally used drag coefficients differ from the new ones by a factor 0.5-1.2. The geographic distribution of drag coefficients obtained from both parametrizations is very different. Differences are due to a nonlinear and non-monotonic dependence of drag coefficients on sea ice concentration in the new parametrization. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874901502&doi=10.1002%2fgrl.50081&partnerID=40&md5=3748a1b47499f11154146e7dd2ad352c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6650
Appears in Collections: 气候减缓与适应
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作者单位: Alfred Wegener Institute for Polar and Marine Research, Postfach 120161, D-27515, Bremerhaven, Germany
Recommended Citation:
Lüpkes C.,Gryanik V.M.,Rösel A.,et al. Effect of sea ice morphology during Arctic summer on atmospheric drag coefficients used in climate models[J]. Geophysical Research Letters,2013-01-01,40(2).