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
CountryUnited States
CityAlbuquerque, NM
Period12/5/2012/5/24

ASJC Scopus subject areas

  • Water Science and Technology

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    Mann, H., Kavvas, M. L., Jang, S., Ohara, N., & Kure, S. (2012). Validation of extreme precipitation reconstructed by dynamical downscaling for the Upper Feather, Yuba, and American watersheds. In World Environmental and Water Resources Congress 2012: Crossing Boundaries, Proceedings of the 2012 Congress (pp. 2030-2035). (World Environmental and Water Resources Congress 2012: Crossing Boundaries, Proceedings of the 2012 Congress). https://doi.org/10.1061/9780784412312.204