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Nowcasting of 1-h precipitation using radar and NWP data

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    SYSNO ASEP0042649
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JOstatní články
    TitleNowcasting of 1-h precipitation using radar and NWP data
    TitlePředpověď hodinových srážek s použitím radarových dat a předpovědí NWP modelu
    Author(s) Sokol, Zbyněk (UFA-U) RID
    Source TitleJournal of Hydrology. - : Elsevier - ISSN 0022-1694
    Roč. 328, 1-2 (2006), s. 200-211
    Number of pages12 s.
    Languageeng - English
    CountryNL - Netherlands
    KeywordsPrecipitation forecast ; Regression models ; Nowcasting ; Radar
    Subject RIVDG - Athmosphere Sciences, Meteorology
    R&D ProjectsGA205/04/0114 GA ČR - Czech Science Foundation (CSF)
    IBS3042101 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR)
    CEZAV0Z30420517 - UFA-U, BC-A (2005-2011)
    AnnotationA multiple linear regression model complemented by a correction procedure (REG) is applied to nowcasting of 1-h precipitation for warm seasons. The model predictors are obtained from: (i) radar-derived precipitation in the squares; (ii) radar-derived precipitation advected by wind fields at the 700 hPa level produced by ALADIN/LACE NWP model forecast; (iii) variables derived from forecasts of the ALADIN/LACE NWP model. Results show that REG yields apparently better forecasts than simple advection ADV in terms of RMSE, correlation coefficients and categorical measures. Also local precipitation maxima have better positions with respect to the real ones.
    WorkplaceInstitute of Atmospheric Physics
    ContactKateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019
    Year of Publishing2007