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    Improvement of quantitative precipitation estimates in Belgium.

    Authors
    Delobbe, L.
    Goudenhoofdt, E.
    ,Mohymont, B.
    Discipline
    Earth and related Environmental sciences
    Subject
    quantitative precipitation estimates (QPE)
    radar
    Wideumont
    Belgium
    rain gauge
    Audience
    General Public
    Scientific
    Date
    2008
    Publisher
    IRM
    KMI
    RMI
    Metadata
    Show full item record
    Description
    In this paper we describe the recent improvements of quantitative precipitation estimates (QPE) based on radar observations and rain gauge measurements and we present verification statistics. These improvements concern the implementation of an advection procedure aimed at correcting for the effect of the time sampling interval on accumulation maps and the implementation of several radar-gauge merging techniques. A first simplified correction based on a climatological Vertical Profile of Reflectivity (VPR) has been also implemented. Radar observations are available from a C-band Doppler radar located in the south of the country (Wideumont) and operated by the Royal Meteorological Institute of Belgium (RMI). Gauge observations are available from the automatic network operated by the hydrological service of the Walloon region. Gauge observations from the RMI climatological network are used for verification purpose. The radar-gauge merging techniques which have been implemented are of various degrees of complexity: from mean bias correction to sophisticated geostatistical radargauge merging techniques. The merging is performed using the gauge data from the automatic networks and applied to the 24h precipitation accumulation. In this paper we first present the radar and gauge observations. The advection procedure, the VPR correction and the radar-gauge merging procedures are described in section 3, 4 and 5, respectively. Verification statistics using various quality parameters are presented in section 6 aswell as a sensitivity analysis to the density of the gauge network used for the adjustment.
    Citation
    Delobbe, L.; Goudenhoofdt, E.; ,Mohymont, B. (2008). Improvement of quantitative precipitation estimates in Belgium.. , Issue Proceedings of the Fifth Conference on Radar in Meteorology and Hydroloy (ERAD 2008), Helsinki, Finldand., 1/4/2015, IRM,
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/8786
    Type
    Article
    Peer-Review
    Not pertinent
    Language
    eng
    Links
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