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    Original Research Papers

    The influence of synoptic scale flow on sea breeze induced surface winds and calm zones

    Authors:

    Martin Gahmberg,

    Department of Physics, 00014 University of Helsinki; WB-Sails Inc., Helsinki, FI
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    Hannu Savijärvi ,

    Department of Physics, 00014 University of Helsinki, FI
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    Matti Leskinen

    Department of Physics, 00014 University of Helsinki, FI
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    Abstract

    High-latitude sea breezes and the related daytime calm zones were studied through fine-scale two-dimensional idealized simulations by varying the direction and speed of the ambient large-scale geostrophic flow in small steps. Strongest coastal afternoon breezes were obtained for moderate large-scale flows 45°–90° left from the pure offshore direction (as seen from the sea), while calm zones appeared near the coast for weak to moderate large-scale flows about 30°–90° right from offshore, and at the seaward edge of the breeze cell for weak ambient flows 45°–90° right from offshore. The complex daytime evolution of the wind field for ambient winds roughly opposing the sea breeze is illustrated via a few key cases.

    How to Cite: Gahmberg, M., Savijärvi, H. and Leskinen, M., 2010. The influence of synoptic scale flow on sea breeze induced surface winds and calm zones. Tellus A: Dynamic Meteorology and Oceanography, 62(2), pp.209–217. DOI: http://doi.org/10.1111/j.1600-0870.2009.00423.x
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      Published on 01 Jan 2010
    Peer Reviewed
     CC BY 4.0
     Accepted on 2 Nov 2009            Submitted on 3 Apr 2009

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