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    Note on the vertical velocity and diffusive salt flux induced by evaporation and precipitation

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    2009jpo4069%2E1.pdf (429.5Kb)
    Date
    2009-10
    Author
    Warren, Bruce A.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/3996
    As published
    https://doi.org/10.1175/2009JPO4069.1
    DOI
    10.1175/2009JPO4069.1
    Keyword
     Evaporation; Precipitation; Salinity; Fluxes 
    Abstract
    Some (not all) of the oceanographic literature slightly miscalculates the vertical velocity (w) and diffusive salt flux induced by evaporation (E) and precipitation (P) at the sea surface. Short, simple, physical derivations are presented to show that, for a sea surface h = h(x, y, t) varying in space and time, 1) w = VH · h + ∂h/∂t + ρF(E − P)/ρ, where VH is the horizontal component of the aggregate parcel velocity, and ρF and ρ are the densities of freshwater and surface seawater, respectively; and 2) the vertical diffusive salt flux at the sea surface (whether molecular or turbulent) is −ρFS(E − P), where S is the surface salinity.
    Description
    Author Posting. © American Meteorological Society, 2009. This article is posted here by permission of American Meteorological Society for personal use, not for redistribution. The definitive version was published in Journal of Physical Oceanography 39 (2009): 2680-2682, doi:10.1175/2009JPO4069.1.
    Collections
    • Physical Oceanography (PO)
    Suggested Citation
    Journal of Physical Oceanography 39 (2009): 2680-2682
     

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