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    Visualizing the Census of Marine Life
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The Census of Marine Life was a global network of researchers in more than 80 nations engaged in a 10-year scientific initiative to assess and explain the diversity, distribution, and abundance of life in the oceans.  The world's first comprehensive census of the past, present, and future of life in the oceans was released in October 2010.


ETOPO1 Global Topography

1 arc-minute global topography

ETOPO1 Global Relief Model

ETOPO1 is a 1 arc-minute global relief model of Earth's surface that integrates land topography and ocean bathymetry. It was built from numerous global and regional data sets, and is available in "Ice Surface" (top of Antarctic and Greenland ice sheets) and "Bedrock" (base of the ice sheets) versions. Historic ETOPO2v2 and ETOPO5 global relief grids are deprecated but still available.


 Etopo 1


Use Example

 Download a cell-registered "Ice Surface"" (top of ice sheets) binary float dataset and convert to ESRI grid in ArcGIS 9.2

                Download the zip file and unzip.

                Using ArcGIS Toolbox find Conversion Tools -> To Raster -> Float to Raster tool. 
                Specify the ETOPO1 float raster and a raster output file name and run the tool.  
                Data Management Tools -> Projections and Transformations -> Define Projection
                      Select -> Geographic Coordinate Systems -> World -> WGS 1984


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