Assessment of Change in Precipitation Frequency under Future Climate Change Conditions

S. Jang, M. L. Kavvas, N. Ohara, S. Kure, K. Ishida

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

    Abstract

    In this study the extreme precipitation under different CCSM3 GCM GHG emissions scenarios is investigated between historical period (wy1901 - wy1999) and projection period (wy2001 - wy2099) for the watersheds in northern California. For this, a regional climate model (MM5) was set up over northern California and then the precipitation was dynamically downscaled from CCSM3 GCM GHG emissions scenario outputs to a regional scale (9-km grid resolution) with 1-hour time increments for both the historical period (1900 - 2000) and the projection period (2000 - 2100). From this study, it is found that the projected annual 72-hour maximum precipitation values based on CCSM3 A1B, A2, B1, and A1FI have heavier tails than the historical annual 72-hour maximum precipitation values. Furthermore, the CCSM3 A1FI scenario-based annual 72-hour maximum precipitation values are also higher than the historical annual 72-hour maximum precipitation values. In other words, A1FI scenario is one of the worst GHG emissions scenarios, but this scenario is also very important for future climate change assessment.

    Original languageEnglish
    Title of host publicationWorld Environmental and Water Resources Congress 2014
    Subtitle of host publicationWater Without Borders - Proceedings of the 2014 World Environmental and Water Resources Congress
    PublisherAmerican Society of Civil Engineers (ASCE)
    Pages596-600
    Number of pages5
    ISBN (Electronic)9780784413548
    DOIs
    Publication statusPublished - 2014 Jan 1
    EventWorld Environmental and Water Resources Congress 2014: Water Without Borders - Portland, United States
    Duration: 2014 Jun 12014 Jun 5

    Other

    OtherWorld Environmental and Water Resources Congress 2014: Water Without Borders
    Country/TerritoryUnited States
    CityPortland
    Period14/6/114/6/5

    ASJC Scopus subject areas

    • Water Science and Technology

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