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    A high-resolution bathymetry map for the Marguerite Bay and adjacent west Antarctic Peninsula shelf for the Southern Ocean GLOBEC Program

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    WHOI-2004-02.pdf (8.687Mb)
    Date
    2004-05
    Author
    Bolmer, S. Thompson  Concept link
    Beardsley, Robert C.  Concept link
    Pudsey, C.  Concept link
    Morris, P.  Concept link
    Wiebe, Peter H.  Concept link
    Hofmann, Eileen E.  Concept link
    Anderson, John B.  Concept link
    Maldonado, A.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/49
    Location
    Marguerite Bay
    Antarctic Peninsula western shelf
    DOI
    10.1575/1912/49
    Keyword
     Bathymetry; Marguerite Bay; SO GLOBEC 
    Abstract
    One objective of the U.S. Southern Ocean Global Ocean Ecosystems Dynamics (SO GLOBEC) program is to gain a better understanding of the sea floor bathymetry in the program study area. Much of Marguerite Bay and the adjacent shelf west of the Antarctic Peninsula were poorly charted when the SO GLOBEC program started in 2000. Before the first SO GLOBEC cruise, an improved local area version (ETOPO8.2A) was created from the Smith and Sandwell (1997) topo_8.2.img 2-minute digital gridded bathymetry for the study area. The first SO GLOBEC mooring cruise on the R/V Lawrence M. Gould (March 2001) showed that the 2-minute spatial resolution of ETOPO8.2A did not resolve many of the canyons and abrupt changes in topography that characterize Marguerite Bay and the inner- to mid-shelf region. It also was not particularly accurate in the more uniform terrain regions. We then decided to collect as much multibeam bathymetry data as possible during the SO GLOBEC broad-scale survey cruises on the R/VIB Nathaniel B. Palmer and combine these data with all other available multibeam and trackline bathymetry data to construct a digital bathymetry database and map for the study area. The resulting database has high-resolution data over much of the shelf and parts of Marguerite Bay gridded at 2 seconds in latitude and 6 seconds in longitude spacing between 65° to 71° S and 65° to 78° W. This technical report describes the steps taken to assemble and construct this database and how to access the data via the Internet.
    Collections
    • Physical Oceanography (PO)
    • WHOI Technical Reports
    Suggested Citation
    Bolmer, S. T., Beardsley, R. C., Pudsey, C., Morris, P., Wiebe, P., Hofmann, E., Anderson, J., & Maldonado, A. (2004). A High-resolution bathymetry map for the Marguerite Bay and adjacent west Antarctic Peninsula shelf for the Southern Ocean GLOBEC Program. Woods Hole Oceanographic Institution. https://doi.org/10.1575/1912/49
     

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