Validation of extreme precipitation reconstructed by dynamical downscaling for the Upper Feather, Yuba, and American watersheds

H. Mann, M. L. Kavvas, S. Jang, N. Ohara, Shuichi Kure

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Fine grid resolution and temporal scales are crucial to analyze the hydrologic impacts from extreme floods for a watershed. A regional scale atmospheric model such as MM5 is useful to achieve this purpose because ground observation stations are rarely located within watersheds. However, the achieved data set by a model should be validated against observation data before it is used. In this study, historical global reanalysis atmospheric data (NCAR/NCEP) was dynamically downscaled to a 3km resolution over the Upper Feather, Yuba, and American River watersheds using the Fifth-Generation NCAR / Penn State Mesoscale Model (MM5). To validate the reconstructed precipitation, historical data from California Data Exchange Center (CDEC) stations were first used. However, the data that can be obtained from them is coarse throughout the watersheds so historical data from PRISM (parameter-elevation regressions on independent slopes model) were also used. The hourly increment precipitation data found at the CDEC stations in each watershed are used to verify the temporal accuracy of the model simulation, and the PRISM simulations are used to verify the monthly basin-average precipitation and its spatial distribution over each watershed.

    Original languageEnglish
    Title of host publicationWorld Environmental and Water Resources Congress 2012
    Subtitle of host publicationCrossing Boundaries, Proceedings of the 2012 Congress
    Pages2030-2035
    Number of pages6
    DOIs
    Publication statusPublished - 2012 Sep 17
    EventWorld Environmental and Water Resources Congress 2012: Crossing Boundaries - Albuquerque, NM, United States
    Duration: 2012 May 202012 May 24

    Publication series

    NameWorld Environmental and Water Resources Congress 2012: Crossing Boundaries, Proceedings of the 2012 Congress

    Other

    OtherWorld Environmental and Water Resources Congress 2012: Crossing Boundaries
    Country/TerritoryUnited States
    CityAlbuquerque, NM
    Period12/5/2012/5/24

    ASJC Scopus subject areas

    • Water Science and Technology

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