The folder contains the D4.1 delivarable for the CP4O project.

The Arctic bathymetry predicted from DTU17 gravity anomalies.
Basic information on these two grids can be accesed using GMT module "grdinfo".


Arc_BATH_FULL.nc :
Netcdf format, Cartesian coordinate system. Polar Stereographic projection is used, 
which is the same as the International Bathymetric Chart of the Arctic Ocean (IBCAO). 
The grid spacing is 500 m in both x and y axis directions. Basic projection parameters are as 
follows:
    PROJECTION["Polar_Stereographic"],
    PARAMETER["latitude_of_origin",90],
    PARAMETER["central_meridian",0],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",0],
    PARAMETER["false_northing",0],

Arc_BATH_FULL_geo.nc :
1 arcminute geographic grid, Netcdf format, achieved using GMT, with the following command:
grdproject Arc_BATH_FULL.nc -GArc_BATH_FULL_geo.nc -Js0/+90/+75/1:1 -R0/360/60/90  -C0/0 -F -I -D1m -V