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The Third Rediscovery, 2003

The new center computation is based on the digital elevation map ETOPO2 with a resolution of 2', equivalent to 3.7km per pixel on the surface.

Using a simple numeric method for maximum search, called hill-climbing, the geographical center can be determined with one of todays common PCs within a few minutes.

The data source ETOPO2, which not only shows the contours of the continents, but also the elevation for each pixel in meters, and the offical abbreviation NOAA of the publisher, the National Oceanic and Atmospheric Administration, then induced to an experiment...

The sourcecode geocenter.c of the used algorithm.

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© Holger Isenberg
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last modified: 10/19/2003
published on: 10/19/2003