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    Atmospheric moisture transport and its impact on the water cycle over Alaska and Hawaii: the roles of the Pacific Decadal Oscillation and El Nino

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    Borries_uaf_0006N_10165.pdf
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    Author
    Borries, Cecilia J.
    Chair
    Zhang, Xiangdong
    Committee
    Bhatt, Uma
    Mölders, Nicole
    Metadata
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    URI
    http://hdl.handle.net/11122/4552
    Abstract
    Precipitation over the North Pacific can fluctuate under climate patterns such as the Pacific Decadal Oscillation (PDO) and El Niño-Southern Oscillation (ENSO). In order to better understand the role which these climatic patterns play in the North Pacific water budgets and pathways, we employed the Community Atmosphere Model 5.0 (CAM) and conducted sensitivity experiments to examine how atmospheric moisture convergence and moisture transport respond to sea surface temperature (SST) anomalies associated with the PDO and ENSO phase transitions. We have found that changes in transient moisture transport, as the PDO phase shifts from cool to warm, are due to increases in specific humidity and decreases in wind speeds over Alaska and the North Pacific. Additionally, increases in moisture convergence, specific humidity, and wind speeds and decreases in transient moisture transport are seen over the North Pacific during El Niño events compared to La Niña events.
    Description
    Thesis (M.S.) University of Alaska Fairbanks, 2014
    Date
    2014-05
    Type
    Thesis
    Collections
    College of Natural Sciences and Mathematics
    Theses (Atmospheric Sciences)

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