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The World: Topography and Bathymetry This is a spectacular satellite map of the whole world, in Geographic projection with it’s central meridian 10° east of Greenwich. It shows both topography and bathymetry (topography of the ocean floor) in brilliant color and in unparalleled detail and also includes international borders. This map, put together from multiple data sources, is the most accurate and up to date such map available today. The land imagery is based on data collected by NASA’s MODIS satellite instrumentation in August 2004. Ocean bathymetry is derived from the RAMP II dataset (Radarsat Antarctic Mapping Project Digital Elevation Model), Version 2, 2001 and GEBCO (General Bathymetric Chart of the Oceans), 2003. Polar sea ice is based on a combination of sources including MODIS data and observations of Antarctica made by the National Oceanic and Atmospheric Administration’s AVHRR sensor (Advanced Very High Resolution Radiometer). There is so much detail in this map that it can support a print size of 12ft x 24ft in full high resolution. Tens of thousands of the earths physical features can be clearly identified from Arizona’s Grand Canyon to the relatively tiny Ayer’s rock in Australia and everything in-between even the ocean floor features such as the tectonic plate boundaries and much more. |