globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-15-0273.1
Scopus记录号: 2-s2.0-84957707030
论文题名:
Maintenance and broadening of the ocean's salinity distribution by the water cycle
作者: Zika J.D.; Skliris N.; George Nurser A.J.; Josey S.A.; Mudryk L.; Laliberté F.; Marsh R.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期:24
起始页码: 9550
结束页码: 9560
语种: 英语
Scopus关键词: Climate change ; Evaporation ; Mixing ; Precipitation (chemical) ; Range finding ; Water ; Distribution of water ; Global water cycle ; Hydrologic cycles ; Hydrological cycles ; Salinity ; Salinity distributions ; State of the art ; Water mass ; Oceanography ; climate change ; evaporation ; hydrological cycle ; mixing ; precipitation (chemistry) ; salinity ; seawater ; steady-state equilibrium ; water mass
英文摘要: The global water cycle leaves an imprint on ocean salinity through evaporation and precipitation. It has been proposed that observed changes in salinity can be used to infer changes in the water cycle. Here salinity is characterized by the distribution of water masses in salinity coordinates. Only mixing and sources and sinks of freshwater and salt can modify this distribution. Mixing acts to collapse the distribution, making saline waters fresher and fresh waters more saline. Hence, in steady state, there must be net precipitation over fresh waters and net evaporation over saline waters. A simple model is developed to describe the relationship between the breadth of the distribution, the water cycle, and mixing-the latter being characterized by an e-folding time scale. In both observations and a state-of-the-art ocean model, the water cycle maintains a salinity distribution in steady state with a mixing time scale of the order of 50 yr. The same simple model predicts the response of the salinity distribution to a change in the water cycle. This study suggests that observations of changes in ocean salinity could be used to infer changes in the hydrological cycle. © 2015 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50701
Appears in Collections:气候变化事实与影响

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作者单位: National Oceanography Centre, University of Southampton, Southampton, United Kingdom; National Oceanography Centre, Southampton, United Kingdom; Department of Physics, University of Toronto, Toronto, ON, Canada; National Oceanography Centre, University of Southampton, Southampton, United Kingdom

Recommended Citation:
Zika J.D.,Skliris N.,George Nurser A.J.,et al. Maintenance and broadening of the ocean's salinity distribution by the water cycle[J]. Journal of Climate,2015-01-01,28(24)
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