DOI: 10.1007/s00382-016-3009-7
Scopus记录号: 2-s2.0-84957588097
论文题名: The role of local atmospheric forcing on the modulation of the ocean mixed layer depth in reanalyses and a coupled single column ocean model
作者: Pookkandy B. ; Dommenget D. ; Klingaman N. ; Wales S. ; Chung C. ; Frauen C. ; Wolff H.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 47, 期: 2017-09-10 起始页码: 2991
结束页码: 3010
语种: 英语
英文关键词: Annual mean
; Atmospheric forcings
; Coupled single column ocean model
; Flux correction
; Ocean mixed layer depth
; Seasonal variability
英文摘要: The role of local atmospheric forcing on the ocean mixed layer depth (MLD) over the global oceans is studied using ocean reanalysis data products and a single-column ocean model coupled to an atmospheric general circulation model. The focus of this study is on how the annual mean and the seasonal cycle of the MLD relate to various forcing characteristics in different parts of the world’s oceans, and how anomalous variations in the monthly mean MLD relate to anomalous atmospheric forcings. By analysing both ocean reanalysis data and the single-column ocean model, regions with different dominant forcings and different mean and variability characteristics of the MLD can be identified. Many of the global oceans’ MLD characteristics appear to be directly linked to the different atmospheric forcing characteristics at different locations. Here, heating and wind-stress are identified as the main drivers; in some, mostly coastal, regions the atmospheric salinity forcing also contributes. The annual mean MLD is more closely related to the annual mean wind-stress and the MLD seasonality is more closely related to the seasonality in heating. The single-column ocean model, however, also points out that the MLD characteristics over most global ocean regions, and in particular in the tropics and subtropics, cannot be maintained by local atmospheric forcings only, but are also a result of ocean dynamics that are not simulated in a single-column ocean model. Thus, lateral ocean dynamics are essential in correctly simulating observed MLD. © 2016, Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53486
Appears in Collections: 过去全球变化的重建
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作者单位: ARC Centre of Excellence for Climate System Science, School of Earth Atmosphere and Environment, Monash University, Clayton, VIC, Australia; National Centre for Atmospheric Science-Climate, Department of Meteorology, University of Reading, Reading, United Kingdom; ARC Centre of Excellence for Climate System Science, School of Earth Sciences, University of Melbourne, Melbourne, VIC, Australia; Bureau of Meteorology, Melbourne, Australia; CNRM-GAME (Météo-France/CNRS), Toulouse, France
Recommended Citation:
Pookkandy B.,Dommenget D.,Klingaman N.,et al. The role of local atmospheric forcing on the modulation of the ocean mixed layer depth in reanalyses and a coupled single column ocean model[J]. Climate Dynamics,2016-01-01,47(2017-09-10)