• Login
    View Item 
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    •   Home
    • UA Faculty Research
    • UA Faculty Publications
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of UA Campus RepositoryCommunitiesTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournalThis CollectionTitleAuthorsIssue DateSubmit DateSubjectsPublisherJournal

    My Account

    LoginRegister

    About

    AboutUA Faculty PublicationsUA DissertationsUA Master's ThesesUA Honors ThesesUA PressUA YearbooksUA CatalogsUA Libraries

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Investigating Runoff Efficiency in Upper Colorado River Streamflow Over Past Centuries

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Woodhouse_et_al-2018-Water_Res ...
    Size:
    3.860Mb
    Format:
    PDF
    Description:
    Final Published Version
    Download
    Author
    Woodhouse, Connie A.
    Pederson, Gregory T. cc
    Affiliation
    Univ Arizona, Sch Geog & Dev
    Univ Arizona, Tree Ring Res Lab
    Issue Date
    2018-01-05
    
    Metadata
    Show full item record
    Citation
    Woodhouse, C. A., & Pederson, G. T. (2018). Investigating runoff efficiency in upper Colorado river streamflow over past centuries. Water Resources Research, 54, 286–300. https://doi.org/10.1002/2017WR021663
    Publisher
    AMER GEOPHYSICAL UNION
    Journal
    WATER RESOURCES RESEARCH
    URI
    http://hdl.handle.net/10150/627610
    DOI
    10.1002/2017WR021663
    Additional Links
    http://doi.wiley.com/10.1002/2017WR021663
    Abstract
    With increasing concerns about the impact of warming temperatures on water resources, more attention is being paid to the relationship between runoff and precipitation, or runoff efficiency. Temperature is a key influence on Colorado River runoff efficiency, and warming temperatures are projected to reduce runoff efficiency. Here, we investigate the nature of runoff efficiency in the upper Colorado River (UCRB) basin over the past 400 years, with a specific focus on major droughts and pluvials, and to contextualize the instrumental period. We first verify the feasibility of reconstructing runoff efficiency from tree-ring data. The reconstruction is then used to evaluate variability in runoff efficiency over periods of high and low flow, and its correspondence to a reconstruction of late runoff season UCRB temperature variability. Results indicate that runoff efficiency has played a consistent role in modulating the relationship between precipitation and streamflow over past centuries, and that temperature has likely been the key control. While negative runoff efficiency is most common during dry periods, and positive runoff efficiency during wet years, there are some instances of positive runoff efficiency moderating the impact of precipitation deficits on streamflow. Compared to past centuries, the 20th century has experienced twice as many high flow years with negative runoff efficiency, likely due to warm temperatures. These results suggest warming temperatures will continue to reduce runoff efficiency in wet or dry years, and that future flows will be less than anticipated from precipitation due to warming temperatures.
    Type
    Article
    Language
    en
    ISSN
    00431397
    Sponsors
    DOI Southwest Climate Science Center [G14AP00152]
    ae974a485f413a2113503eed53cd6c53
    10.1002/2017WR021663
    Scopus Count
    Collections
    CLIMAS Publications
    UA Faculty Publications

    entitlement

     
    The University of Arizona Libraries | 1510 E. University Blvd. | Tucson, AZ 85721-0055
    Tel 520-621-6442 | repository@u.library.arizona.edu
    DSpace software copyright © 2002-2017  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service operated by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.