DOI: 10.1002/2014GL062235
论文题名: Scaling laws for the upper ocean temperature dissipation rate
作者: Bogucki D.J. ; Huguenard K. ; Haus B.K. ; Özgökmen T.M. ; Reniers A. ; Laxague N.J.M.
刊名: Geophysical Research Letters
ISSN: 0094-8975
EISSN: 1944-8706
出版年: 2015
卷: 42, 期: 3 起始页码: 839
结束页码: 846
语种: 英语
英文关键词: upper ocean turbulence
Scopus关键词: Atmospheric thermodynamics
; Boundary layers
; Carbon dioxide
; Oceanography
; Turbulence
; Wind stress
; Biogeochemical tracers
; Climate forecasts
; Coherent structure
; Dissipation rates
; Monin-Obukhov similarity theory
; Optical turbulence
; Significant wave height
; Upper ocean
; Heat flux
; dissipation
; Monin-Obukhov theory
; sea surface temperature
; tracer
; turbulence
; upper ocean
; wind forcing
; wind stress
英文摘要: Our understanding of temperature dissipation rate χ within the upper ocean boundary layer, which is critical for climate forecasts, is very limited. Near-surface turbulence also affects dispersion of contaminants and biogeochemical tracers. Using high-resolution optical turbulence measurements, scaling laws for χ are investigated under forcing states where either the daytime heat flux or the wind stress forcing is dominant. We find that χ remains constant over 1.5 times the significant wave height, while over a layer below, χ decays based on the local surface forcing. When the heat flux is dominant, traditional scaling based on the Monin-Obukhov similarity theory remains valid; χ â? z-1. When the wind stress dominates, we observe the emergence of a new scaling, χ â? z-1/2, which is explained by invoking the effect of small-scale coherent structures on vertical heat transport. These results have implications for improved modeling of the ocean's heat and CO2 intake. Key Point We proposed a new χ scaling ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925057884&doi=10.1002%2f2014GL062235&partnerID=40&md5=a2429eabd15151a66c79827d6ac5faf5
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8591
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Physical and Environmental Sciences, Texas A and M University-Corpus Christi, Corpus Christi, TX, United States
Recommended Citation:
Bogucki D.J.,Huguenard K.,Haus B.K.,et al. Scaling laws for the upper ocean temperature dissipation rate[J]. Geophysical Research Letters,2015-01-01,42(3).