The GEBCO world shows the bathymetry of the world's in the form of a shaded relief . Adobe PDF format  (60 Mbytes). GeoTIFF format  (445 Mbytes) for the region between 72°N and 72°S. Please note that because of the size of the files we recommend that they are saved to disk rather than opened from the above links. Data set acknowledgement If imagery is reproduced from the GEBCO world map then we suggest the following form of acknowledgement “Image reproduced from the GEBCO world map 2014,” Creation of the map Work on the creation of the GEBCO world map began as a laboratory workshop project of the Nippon Foundation/GEBCO Training Project at the Center for Coastal and Mapping of the University of New Hampshire, . The map is based upon bathymetry data from the GEBCO_08 Grid, version 20100927, a global bathymetric grid with 30 arc-second spacing. The grid is largely based upon a database of -track soundings with interpolation between soundings guided by satellite-derived gravity data. Where they improve on the existing grid, data sets developed by other methods have been included. This release is an updated version of the 2013 world map (second release). It now includes the names of undersea features. The imagery is taken from the US National Aeronautics and Space Administration's (NASA) Blue Marble data set. The coastline is taken from the World Vector Shoreline. The first release of the GEBCO world map was published in 2007 and was based on bathymetry data from the GEBCO One Minute Grid. Use of the GEBCO world map The image file has been made available for you to download and either print or use in digital form. The map is supplied under the following terms and conditions Use of the printed map and/or digital imagery for scientific research, environmental conservation, education or other non-commercial purposes is authorised without the prior permission of the data set originators, providing the source material is properly credited. Use of the printed map and/or digital imagery for sale or for use in a commercial product or for any other commercial purpose is prohibited without the prior permission of the data set originators. In the first instance, any request for such permission should be addressed to the British Oceanographic Data Centre (email BODC Enquiries). Answer: Generally, we use maps as a reference to show political boundaries, landforms, water bodies, and the positions of cities. Maps also help us to know the routes of an , landmarks, location (latitudes and longitudes) of a building or things, etc. How many countries are in world map?This total comprises 193 countries that are member states of the United Nations and 2 countries that are non-member observer states: the Holy See and the State of . Summary. By this methodology, there are therefore 253 “countries” in the world: 193 independent nation-states, 55 dependencies, , and 3 other areas. How is world map divided?Specifically, this world map divides the population into these 4 regions: North, South & Central America/North, West &…

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