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International Bathymetric Chart of the Arctic Ocean, Version 3.0

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: May 05, 2026 at 11:27 PM | Dataset Last Updated: June 08, 2012 at 12:00 AM
IBCAO Version 3.0 represents the largest improvement since 1999 taking advantage of new data sets collected by the circum-Arctic nations, opportunistic data collected from fishing vessels, data acquired from US Navy submarines and from research ships of various nations. Built using an improved gridding algorithm, this new grid is on a 500 meter spacing, revealing much greater details of the Arctic seafloor than IBCAO Version 1.0 (2.5 km) and Version 2.0 (2.0 km). The area covered by multibeam surveys has increased from ~6 % in Version 2.0 to ~11% in Version 3.0.

Resources

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

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  • International Bathymetric Chart of the Arctic Ocean: Technical Reference and User's Guide

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  • GCMD Keyword Forum Page

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  • International Bathymetric Chart of the Arctic Ocean

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