Seasonality in onshore normalized wind profiles above the surface layer

Jesper Nielsen Nissen, Sven-Erik Gryning

    Research output: Contribution to journalConference article

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    Abstract

    This work aims to study the seasonal difference in normalized wind speed above the surface layer as it is observed at the 160 m high mast at the coastal site Høvsøre at winds from the sea (westerly). Normalized and stability averaged wind speeds above the surface layer are observed to be 20 to 50% larger in the winter/spring seasons compared to the summer/autumn seasons at winds from west within the same atmospheric stability class. A method combining the mesoscale model, COAMPS, and observations of the surface stability of the marine boundary layer is presented. The objective of the method is to reconstruct the seasonal signal in normalized wind speed and identify the physical process behind. The method proved reasonably successful in capturing the relative difference in wind speed between seasons, indicating that the simulated physical processes are likely candidates to the observed seasonal signal in normalized wind speed.
    Original languageEnglish
    JournalAdvances in Science and Research
    Volume4
    Pages (from-to)57-62
    ISSN1992-0628
    DOIs
    Publication statusPublished - 2010
    Event9th EMS Annual Meeting and 9th European Conference on Applications of Meteorology 2009 - Toulouse, France
    Duration: 28 Sep 20092 Oct 2009

    Conference

    Conference9th EMS Annual Meeting and 9th European Conference on Applications of Meteorology 2009
    CountryFrance
    CityToulouse
    Period28/09/200902/10/2009

    Keywords

    • Wind power meteorology
    • Wind Energy

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