See main bathymetry page for descriptions of the
dataset and where to get them.
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ETOPO1 (1-arc-minute) is a noisy, but free, global dataset. |
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ETOPO2 (2-arc-minute) is an older version of ETOPO1. |
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GEBCO (1-arc-minute) is "public" (but actually expensive and non-redistributable?). Note how the data is smooth and well-behaved, but misses features which the lower-resolution ETOPO2 captured. |
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Accurate local bathymetry data for visual comparison, showing the details that the global datasets miss. |