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    Concentration-Discharge Patterns Across the Gulf of Alaska Reveal Geomorphological and Glacierization Controls on Stream Water Solute Generation and Export

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    Name:
    ds01.zip
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    22.87Mb
    Format:
    Unknown
    Description:
    This folder contains the spatial ...
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    Table S1.xlsx
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    Format:
    Microsoft Excel 2007
    Description:
    Table contains all watershed and ...
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    Table S3.xlsx
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    Author
    Jenckes, Jordan
    Ibarra, Daniel
    Munk, Lee
    Keyword
    Gulf of Alaska
    Concentration-Discharge
    Solutes
    Metadata
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    URI
    http://hdl.handle.net/11122/12289
    Abstract
    High latitude glacierized coastal catchments of the Gulf of Alaska (GoA) are undergoing rapid hydrologic changes in response to climate change and glacial recession. These catchments deliver important nutrients in the form of both inorganic and organic matter to the nearshore marine environment, yet are relatively understudied with respect to characterization of the sediment and solute generation processes and total yields. Using multiple linear regression informed by Bayesian Information Criterion analysis we empirically demonstrate how watershed characteristics affect suspended sediment and solute generation as represented by concentration-discharge relationships. We find that watershed mean slope and relief control solute generation and that solute yields are influenced most by glacier coverage. We contribute a new flux and concentration-discharge based conceptualization for understanding solute cycles across a hydroclimatic gradient of GoA watersheds that can be used to better understand future watershed responses to rapid hydrologic change.
    Date
    2021-10-19
    Type
    Article
    Peer-Reviewed
    Yes
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