NetCDF-3 Classic gebco_30sec.nc { dimensions: lon = 43200 ; lat = 21600 ; variables: // Preference 'PRESERVE_FVD': false, // dimensions consistent with ncBrowse, not with native MATLAB netcdf package. double lon(lon), shape = [43200] lon:standard_name = "longitude" lon:long_name = "Uniformly spaced longitudes (-180E - +180E)" lon:units = "degrees_east" lon:axis = "X" lon:spacing = 0.00833333 lon:actual_range = -179.996 179.996 double lat(lat), shape = [21600] lat:standard_name = "latitude" lat:long_name = "Uniformly spaced latitudes (-90E - +90E)" lat:units = "degrees_north" lat:axis = "Y" lat:spacing = 0.00833333 lat:actual_range = 89.9958 -89.9958 int16 topo(lat,lon), shape = [21600 43200] topo:standard_name = "surface_altitude" topo:long_name = "topography" topo:units = "meters" topo:axis = "Z" topo:spacing = 0.00833333 topo:actual_range = -10977 8685 s topo:_CoordinateAxes = "lat lon" topo:positive = "up" char SID(lat,lon), shape = [21600 43200] SID:standard_name = "" SID:long_name = "" SID:units = "" SID:axis = "Z" SID:spacing = 0.00833333 SID:actual_range = NaN NaN SID:_CoordinateAxes = "lat lon" SID:positive = "up" SID:flag_values = 1 2 3 4 5 6 7 8 9 10 // CF standard SID:flag_meanings = "0 9999 -8888 110 120 130 1000 1100 1200 1300" // CF standard SID:flag_short_labels = "gravimetry + sounding guidance;gravimetry + sounding constraint;land (SRTM30);Caspian Sea, sounding;Black Sea, sounding;Weddell Sea, sounding; IBCAO;Caspian Sea, interpolated;Black Sea, interpolated;Weddell Sea, interpolated" // not CF standard, for legend labels SID:flag_long_labels = "interpolated ship-track soundings guided by gravimetry data (0);interpolated ship-track soundings guided by gravimetry data constrained by bathymetric soundings (9999);land from SRTM30 (-8888);the Caspian Sea (110);the Black Sea (120);the Weddell Sea (130);IBCAO (1000);the Caspian Sea without sounding (1100);the Black Sea without sounding (1200);the Weddell Sea without sounding (1300);" // not CF standard, near-full description SID:flag_comments = "For detailed SID descriptiond see GEBCO documentation" //global Attributes: :Conventions = "CF-1.5 COARDS" :title = "GEBCO_08 Grid" :institution = "GEBCO" :source = "20100927" :history = "$HeadURL: https://repos.deltares.nl/repos/OpenEarthRawData/trunk/gebco/scripts/GEBCO2CF.m $ $Date: $ $Author: $ $Revision: -1 $" :references = "The GEBCO_08 Grid version 20091120, http://www.gebco.net" :comment = "" :email = "enquiries@bodc.ac.uk" :version = "20091120, modified to CF by $HeadURL: https://repos.deltares.nl/repos/OpenEarthRawData/trunk/gebco/scripts/GEBCO2CF.m $ $Date: $ $Author: $ $Revision: -1 $" :terms_of_use = "Data within this GEBCO grid are subject to copyright and database right restrictions. Reproduction of the gridded bathymetry sets in derivative form for scientific research, environmental conservation, or education or other non-commercial purposes is authorised without prior permission, providing the source material is properly credited. The production of these gridded data sets is the result of an international collaboration of numerous scientists and hydrographers who have devoted mich of their time and effort, often on a voluntary basis. The work was stimulated by a wish to create an authoritative, high-quality bathymetry of the world's oceans for the benefit of us all. Therefore we ask you to contact us first, should you wish to pass on the data to third parties of use the data for commercial purposes. In the first instance, please contact the British Oceanographic Data Centre (BODC) and include a clear statement of the purpose for which the material will be used and the manner in which it will be reproduced. In the case of commercial activities, a contribution may be requested for the further improvement of GEBCO's datasets." :attribution = "Any material reproduced from GEBCO gridded data sets should be accompanied by appropriate attribution to the source of the material. The version number of the grid is given in the header information within the grid data file. For the GEBCO bathymetry data, this should be of the form (including the appropriate version number): Reference for this grid: '20091120' For non-GEBCO material, such as land data from the SRTM30 dataset, the ackowledgement should include reference to the original source material." :disclaimer = "THIS GEBCO GRID IS NOT TO BE USED FOR NAVIGATION OR FOR ANY OTHER PURPOSE INVOLVING SAFETY AT SEA. Data use in the creation of the GEBCO 08 Grid and GEBCO One Minute Grid grid have been obtained from sources believed to be relaible but their accuracy and completeness cannot be guaranteed. Whilst every effort has been made to ensure their reliability within the limits of present knowlegde, no responsibility can be acccepted by those involved in their compilation or publication for any consequential loss or damage arasing from their use. This GEBCO grid is essentially a deep water product and does not include detailed bathymetry for shallow shelf waters. Even to the present day, most areas of the world's oceans have not been fully surveyed and, for the most part, bathymetric mapping is an interpolation based on random tracklines of data from many different sources. The quality and coverage of data from these sources is highly variable. Although the GEBCO 08 Grid and GEBCO One Minute Grid grid are presented at 30 arc-second and one arc-minute intervals of latitude and longitude respectively, this does not imply that knowlegde is available on sea floor depth at this resolution - the depth in most 30 arc-second squares of the world has yet to be measured." }