A high-resolution bathymetric map for the Marguerite Bay and adjacent west Antarctic Peninsula shelf for the Southern Ocean GLOBEC Program
By: by S.T. Bolmer ... [et al.].
Contributors: Bolmer, S. Thompson.; Global Ocean Ecosystems Dynamics (Program); Woods Hole Oceanographic Institution.
Series: WHOI -- 2004-02.; Technical report / Woods Hole Oceanographic Institution; WHOI (Series) -- 2004-02.; Technical report (Woods Hole Oceanographic Institution)
Publisher: WHOI
Published: 2004
Place of publication: Woods Hole, Mass
Language: eng
Number of pages: 78
Subjects: Ocean bottom -- Antarctica -- Marguerite Bay -- Bathymetric maps.; Ocean bottom -- Antarctica -- Antarctic Peninsula -- Bathymetric maps.; Marguerite Bay (Antarctica) -- Bathymetric maps.; Antarctic Peninsula (Antarctica) -- Bathymetric maps.
Genres: Bathymetric maps.
Description: 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.
Notes: "May 2004."

Includes bibliographical references (p. 42).

Also issued online.

Funding provided by National Science Foundation Grant no. OPP-0234163.