Shallow Water Mask Based on ETOPO2

The ETOPO2 global 2 minute elevation file was used to generate a shallow water mask for use in level-2 processing instead of the 5 minute data that is currently used.  The 2 minute resolution greatly increases the smoothness of the shallow water edge. The size of the new shallow water mask file of 15 megabytes is slightly greater than the previous file size of 13 megabytes and should not be a space problem.

The images below show the shallow water mask and the land mask for Florida and off the New England coast.  Click on these images to get full resolution views