IBCAO Version 1.0 created 2001-07-11 Compiled by Martin Jakobsson*, University of New Hampshire, USA Norman Cherkis*, Five Oceans Consultants, USA Contributions by Harald Brekke*, Norwegian Petrolium Directorate, Norway Bernard Coakley*, Tulane University, USA David Divins*, National Geophysical Data Center, USA Valery Fomchenko*, Head Dep. of Navigation and Oceanography, Russian Federation Garrik Grikurov*, VNIIOkeangeologia, Russian Federation Jennifer Harding, Geological Survey of Canada, Canada Hilmar Helgason*, Icelandic Hydrographic Service, Iceland Martin Klenke, Alfred Wegener Institute, Germany Ron Macnab*, Geological Survey of Canada, Canada Sergei Maschenkov*, VNIIOkeangeologia, Russian Federation Morten Sand*, Norwegian Petrolium Directorate, Norway Hans-Werner Schenke*, Alfred Wegener Institute, Germany John Woodward*, Royal Danish Administration of Navigation and Hydrography, Denmark * Member and former members of IOC/IASC/IHO Editorial Board for IBCAO For details about the grid compilation and format see the Technical Reference and User Guide and the minutes of the May 2001 Editorial Board meeting in New Hampshire: www.ngdc.noaa.gov/mgg/bathymetry/arctic/arctic.html Disclaimer: The IBCAO bathymetric model is not to be used for navigational purposes. The bathymetry in shallow coastal areas, where the coastline is complex, may be significantly distorted because of lack of data and the 2.5 km (Polarstereographic) or 1 min (Geographic) grid resolution. Near shore contours have been removed in areas with sparse source data. Notes: ----------------------------------------------------------------------------- Map sheet division on CD-ROM: Sheet1: lon 0-90°E lat 64-90°N Sheet2: lon 90-180°E, lat 64-90°N Sheet3: lon 180°W-90°W, 64-90°N Sheet4: lon 90°W-0°, 64-90°N The polarstereographic maps reach further south than 64°N in the one of the corners (53°:49':1.4687''N) All contours were derived using Intergraphs Terrain Analyst ------------------------------------------------------------------------------ Subdirectory structure: geo\plots\bathymaps\ a0_ibcao_ver1_sheet1_geo.zip A0 postscript plot of map in geographic projection showing shaded relief and contours a0_ibcao_ver1_sheet2_geo.zip '' a0_ibcao_ver1_sheet3_geo.zip '' a0_ibcao_ver1_sheet4_geo.zip '' ver1_sheet1_geo.jpg Jpeg image of shaded relief of bathymetry in geographic projection ver1_sheet1_legend_geo.jpg (same as above with legend) ver1_sheet2_geo.jpg '' ver1_sheet2_legend_geo.jpg (same as above with legend) ver1_sheet3_geo.jpg '' ver1_sheet3_legend_geo.jpg (same as above with legend) ver1_sheet4_geo.jpg '' ver1_sheet4_legend_geo.jpg (same as above with legend) polar\plots\bathymaps\ a1_ibcao_ver1_sheet1.zip A1 postscript plot of map in Polarstereographic projection showing shaded relief and contours a1_ibcao_ver1_sheet2.zip '' a1_ibcao_ver1_sheet3.zip '' a1_ibcao_ver1_sheet4.zip '' ver1_sheet1.jpg Jpeg image of shaded relief image of bathymetry in polarsterographic projection ver1_sheet1_legend.jpg (same as above with legend) ver1_sheet2.jpg '' ver1_sheet2_legend.jpg (same as above with legend) ver1_sheet3.jpg '' ver1_sheet3_legend.jpg (same as above with legend) ver1_sheet4.jpg '' ver1_sheet4_legend.jpg (same as above with legend) ver1.jpg (the entire gridded area) polar\plots\sourceplots a0_ibcao_ver_sources.zip A0 postscript plot of source data in polarstereographic projection a0_ibcao_ver1_maps.zip A0 postscript plot showing the maps where contours were digitzed from in order to be used in the IBCAO compilation -------------------------------------------------------------------------------------- DGN-file information (The files are created using MicroStation/Intergraph MGE) *Pojection: Geographic **Projection: Polarstereographic, True scale 75°N Datum: WGS 84 Datum: WGS 84 ______________________________________________________________________________________ *geo\contours\dgn\ ver1_sheet1.zip Contours in level 9-27 ver1_sheet2.zip Contours in level 9-27 ver1_sheet3.zip Contours in level 9-27 ver1_sheet4a.zip Contours in level 9-20 ver1_sheet4b.zip Contours in level 21-27 *geo\contours\ascii\ sheet1.zip ASCII files of contours in lon lat depth format. sheet2.zip '' sheet3.zip '' sheet4.zip '' **polar\contours\dgn\ ver1_sheet1.zip Contours in level 9-27 ver1_sheet2.zip Contours in level 9-27 ver1_sheet3.zip Contours in level 9-27 ver1_sheet4a.zip Contours in level 9-20 ver1_sheet4b.zip Contours in level 21-27 **polar\contours\ascii\ sheet1.zip ASCII files of contours in x y depth format sheet2.zip '' sheet3.zip '' sheet4.zip '' geo\grd\netcdf\ ver1_netcdf_geo.grd IBCAO 1 x 1 min geographic grid in netCDF-format (may be used in the software GMT) polar\grd\netcdf\ ver1_netcdf.grd IBCAO 2.5 x 2.5 km polar- stereographic grid in netCDF- format polar\grd\MTA\ ver1_mta IBCAO 2.5 x 2.5 km polar- stereographic grid in Intergraph Terrain Analysts (MTA) format gmt_colortable\ rainbow19d.cpt Color table used to create the shaded reliefs