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NOAA bathymetric data offshore raster block is what?

Question asked by fallingdog Champion on Oct 18, 2014
Latest reply on Oct 20, 2014 by fallingdog

I am wondering what the blocks offshore are called in a NOAA bathymetric chart? And what do they represent.


NGDC/MGG-Download NOS Scanned Bathymetric and Fishing Maps Alaska & Bering Sea North of 58 degrees


I did some looking around on the web but could not find anything definite.


Thanks for any input!