DOI: 10.1175/JCLI-D-13-00668.1
Scopus记录号: 2-s2.0-84920260868
论文题名: Diagnostics for near-surface wind response to the Gulf Stream in a regional atmospheric model
作者: Takatama K. ; Minobe S. ; Inatsu M. ; Small
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 1 起始页码: 238
结束页码: 255
语种: 英语
Scopus关键词: Atmospheric temperature
; Ocean currents
; Oceanography
; Surface waters
; Adjustment mechanisms
; Air sea interactions
; Mixing mechanisms
; Near-surface winds
; Regional model
; Sea surface temperature fronts
; Seasonal variation
; Western boundary currents
; Momentum
; air-sea interaction
; atmospheric modeling
; regional climate
; sea surface temperature
; seasonal variation
; western boundary current
; wind
; Atlantic Ocean
; Gulf Stream
英文摘要: The mechanisms acting on near-surface winds over the Gulf Stream are diagnosed using 5-yr outputs of a regional atmospheric model. The diagnostics for the surface-layer momentum vector, its curl, and its convergence are developed with a clear separation of pressure adjustment from downward momentuminputs from aloft in the surface-layer system. The results suggest that the downward momentum mixing mechanism plays a dominant role in contributing to the annual-mean climatological momentum curl, whereas the pressure adjustment mechanism plays a minor role. In contrast, the wind convergence is mainly due to the pressure adjustment mechanism. This can be explained by the orientation of background wind to the sea surface temperature front. The diagnostics also explain the relatively strong seasonal variation in surfacelayer momentum convergence and the small seasonal variation in curl. Finally, the surface-layer response to other western boundary currents is examined using a reanalysis dataset. © 2015 American Meteorological Society. 资助项目: NOAA, National Aeronautics and Space Administration
; NASA, National Aeronautics and Space Administration
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50408
Appears in Collections: 气候变化事实与影响
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作者单位: International Pacific Research Center, University of Hawai'i at Manoa, Honolulu, HI, United States; Graduate School of Science, Hokkaido University, Sapporo, Hokkaido, Japan; Climate and Global Dynamics Division, National Center for Atmospheric Research, Boulder, CO, United States
Recommended Citation:
Takatama K.,Minobe S.,Inatsu M.,et al. Diagnostics for near-surface wind response to the Gulf Stream in a regional atmospheric model[J]. Journal of Climate,2015-01-01,28(1)