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GEOPHYSICAL RESEARCH LETTERS, VOL. 35, L07602, doi:10.1029/2008GL033520, 2008

An improved bathymetric portrayal of the Arctic Ocean: Implications for ocean modeling and geological, geophysical and oceanographic analyses

Martin Jakobsson

Department of Geology and Geochemistry, Stockholm University, Stockholm, Sweden


Ron Macnab

Geological Survey of Canada, Dartmouth, Nova Scotia, Canada


Larry Mayer

Center for Coastal and Ocean Mapping, University of New Hampshire, Durham, New Hampshire, USA


Robert Anderson

Science Applications International Corporation, Poulsbo, Washington, USA


Margo Edwards

Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, Hawaii, USA


Jörn Hatzky

Alfred Wegener Institute, Bremerhaven, Germany


Hans Werner Schenke

Alfred Wegener Institute, Bremerhaven, Germany


Paul Johnson

Hawaii Institute of Geophysics and Planetology, University of Hawaii at Manoa, Honolulu, Hawaii, USA


Abstract

A digital representation of ocean floor topography is essential for a broad variety of geological, geophysical and oceanographic analyses and modeling. In this paper we present a new version of the International Bathymetric Chart of the Arctic Ocean (IBCAO) in the form of a digital grid on a Polar Stereographic projection with grid cell spacing of 2 × 2 km. The new IBCAO, which has been derived from an accumulated database of available bathymetric data including the recent years of multibeam mapping, significantly improves our portrayal of the Arctic Ocean seafloor.

Received 3 February 2008; accepted 5 March 2008; published 3 April 2008.

Keywords: bathymetry; Arctic Ocean; multibeam.

Index Terms: 3045 Marine Geology and Geophysics: Seafloor morphology, geology, and geophysics; 0930 Exploration Geophysics: Oceanic structures; 0910 Exploration Geophysics: Data processing.

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Citation: Jakobsson, M., R. Macnab, L. Mayer, R. Anderson, M. Edwards, J. Hatzky, H. W. Schenke, and P. Johnson (2008), An improved bathymetric portrayal of the Arctic Ocean: Implications for ocean modeling and geological, geophysical and oceanographic analyses, Geophys. Res. Lett., 35, L07602, doi:10.1029/2008GL033520.