The International Bathymetric Chart of the Arctic Ocean (IBCAO) version 3.0

TitleThe International Bathymetric Chart of the Arctic Ocean (IBCAO) version 3.0
Publication TypeJournal Article
AuthorsJakobsson, M, Mayer, LA, Coakley, B, Dowdeswell, J, Forbes, S, Fridman, B, Hodnesdal, H, Noormets, R, Gardner, JV, Armstrong, AA, Pedersen, R, Rebesco, M, Schenke, HW, Zarayskaya, Y, Accettella, D, Anderson, RM, Bienhoff, P, Camerlenghi, A, Church, I, Edwards, M, Hall, JK, Hell, B, Hestvik, O, Kristoffersen, Y, Marcussen, C, Mohammad, R, Mosher, DC, Nghiem, SV, Pedrosa, MT, Travaglini, PG, Weatherall, P
JournalGeophysical Research Letters
KeywordsArctic Ocean, bathymetric chart, Bathymetry grids; Arctic; Earth Sciences, ibcoa

The International Bathymetric Chart of the Arctic Ocean (IBCAO) released its first gridded bathymetric compilation in 1999. The IBCAO bathymetric portrayals has since supported a wide range of Arctic science activities, for example, by providing constraint for ocean circulation models and the means to define and formulate hypotheses about the geologic origin of the Arctic Ocean undersea features. IBCAO Version 3.0 comprises 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 1.0 (2.5 km) and 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.