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ThisreadmefilecontainsinformationontheETOPO1binarygridformats.ETOPO1comesintwodifferentbinaryformats:2-byte/16-bitinteger(i2)and4-byte/32-bitfloat(f4);floatreferstothefileformat,nottheelevationvaluesinthegrids,whichhavebeenroundedtowholeintegersforallversions.Eachzipfilecontainst
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