An investigation of the feasibility of predicting icing episodes using numerical weather prediction model output

T. Vassbo, J. Kristjansson, S. Fikke, Lasse Makkonen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    Icing on power lines due to supercooled water droplets in saturated air is a potential hazard in Norway, as well as in many other countries, every winter. For this reason, there is a strong desire to improve the predictions of icing episodes. In order to develop a new method, we have selected a few icing episodes for which verifying measurements are available. The measurements were made using rotating multicylinder instrument at the top of a hill in northern Finland. We then ran the weather prediction model HIRLAM for these cases, and extracted information on temperature, wind conditions and cloud water content. By comparing the modelled values of cloud water content with the measured values, we studied the feasibility of using numerical weather prediction model output directly for prediction of icing episodes.
    Original languageEnglish
    Title of host publicationIWAIS 1998, the eigth International Workshop on Atmospheric Icing of Structures
    Subtitle of host publicationProceedings
    Pages343-347
    Publication statusPublished - 1998
    MoE publication typeNot Eligible
    Event8th International Workshop on Atmospheric Icing of Structures, IWAIS 1998 - Reykjavík, Iceland
    Duration: 8 Jun 199811 Jun 1998

    Conference

    Conference8th International Workshop on Atmospheric Icing of Structures, IWAIS 1998
    CountryIceland
    CityReykjavík
    Period8/06/9811/06/98

    Keywords

    • Icing episodes
    • weather prediction model
    • cloud water

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