KUKU

KU ScholarWorks

  • myKU
  • Email
  • Enroll & Pay
  • KU Directory
    • Login
    View Item 
    •   KU ScholarWorks
    • Geology
    • Geology Scholarly Works
    • View Item
    •   KU ScholarWorks
    • Geology
    • Geology Scholarly Works
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Distinct Frontal Ablation Processes Drive Heterogeneous Submarine Terminus Morphology

    Thumbnail
    View/Open
    Fried_2019.pdf (10.37Mb)
    Issue Date
    2019-10-10
    Author
    Fried, M. J.
    Carroll, D.
    Catania, G. A.
    Sutherland, D. A.
    Stearns, Leigh A.
    Shroyer, E. L.
    Nash, J. D.
    Publisher
    Wiley
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
    Rights
    © 2019. American Geophysical Union. All Rights Reserved.
    Metadata
    Show full item record
    Abstract
    Calving and submarine melt drive frontal ablation and sculpt the ice face of marine‐terminating glaciers. However, there are sparse observations of submarine termini, which limit estimates of spatially varying submarine melt. Here we present a detailed survey of a west Greenland glacier to reveal heterogeneity in submarine terminus morphology. We find that the majority of the terminus (~77%) is undercut, driven by calving in the upper water column and submarine melting at depth. The remaining ~23% of the terminus is overcut, driven by calving alone. We use observations of six subglacial discharge outlets, combined with a plume model, to estimate spatially varying discharge fluxes. While small discharge fluxes (<43 m3/s) feed numerous, deeply undercut outlets with subsurface plumes, ~70% of the net subglacial flux emerges at the terminus center, producing a vigorous, surface‐reaching plume. This primary outlet drives large, localized seasonal retreat that exceeds calving rates at secondary outlets.
    Description
    An edited version of this paper was published by AGU. Copyright 2019 American Geophysical Union.
    URI
    http://hdl.handle.net/1808/31435
    DOI
    https://doi.org/10.1029/2019GL083980
    Collections
    • Geology Scholarly Works [238]
    Citation
    Fried, M. J., Carroll, D., Catania, G. A., Sutherland, D. A., Stearns, L. A., Shroyer, E., & Nash, J. (2019). Distinct frontal ablation processes drive heterogeneous submarine terminus morphology. Geophysical Research Letters, 46, 12083– 12091. https://doi.org/10.1029/2019GL083980

    Items in KU ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.


    We want to hear from you! Please share your stories about how Open Access to this item benefits YOU.


    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

    Browse

    All of KU ScholarWorksCommunities & CollectionsThis Collection

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

    The University of Kansas
      Contact KU ScholarWorks
    Lawrence, KS | Maps
     
    • Academics
    • Admission
    • Alumni
    • Athletics
    • Campuses
    • Giving
    • Jobs

    The University of Kansas prohibits discrimination on the basis of race, color, ethnicity, religion, sex, national origin, age, ancestry, disability, status as a veteran, sexual orientation, marital status, parental status, gender identity, gender expression and genetic information in the University’s programs and activities. The following person has been designated to handle inquiries regarding the non-discrimination policies: Director of the Office of Institutional Opportunity and Access, IOA@ku.edu, 1246 W. Campus Road, Room 153A, Lawrence, KS, 66045, (785)864-6414, 711 TTY.

     Contact KU
    Lawrence, KS | Maps