From: Emily Lundblad Date: April 4, 2008 7:44:33 PM PDT [Below is the] newest classification dictionary to use with the Benthic Terrain Modeler... written for the Main Hawaiian Islands. It pulls out the broad crests as their own category and gives much more value to the product. This might help as well: 1 - Narrow Depression 2 - Depression on Flat 3 - Midslope Depression 4 - Depression on Crest 5 - Open Depression 6 - Broad Flat 7 - Shelf 8 - Escarpment 9 - Crest in Depression 10 - Crest on Flat 11 - Midslope Crest 12 - Narrow Crest 13 - Near Vertical Wall 14 - Broad Crest 15 - Deep Shelf Hawaiian Island Structures Classification schema developed at Oregon State University and modified by NOAA PIFSC CRED 1 Narrow Depression -100 -100 2 Depression on Flat -100 100 -100 5 3 Midslope Depression -100 100 -100 5 4 Depression on Crest 100 -100 5 Open Depression -100 -100 100 6 Broad Flat -100 100 -100 100 5 -1000 7 Shelf -100 100 -100 100 5 -100 8 Escarpment -100 100 -100 100 5 70 9 Crest in Depression -100 100 10 Crest on Flat -100 100 100 5 11 Midslope Crest -100 100 100 5 12 Narrow Crest 100 100 13 Near Vertical Wall -100 100 -100 100 70 14 Broad Crest 100 -100 100 15 Deep Shelf -100 100 -100 100 5 -1000 -100