The original file was created as follows: Polygons from 1978 1:24,000 National Wetlands Inventory Maps were received in ditigal format (DLG) from U.S. Fish and Wildlife Service, 1992. OP Staff separated into polygon and line coverages using DISSOLVE command and ArcEdit, 1993, 1999. OP staff further edited by deleting internal and ocean polygons, April, 2003. Converted to NAD 83, April, 2003.
ex: R4SBC R3OWHx M2US2N M2RS2Nr PFO3/EM1
SYSTEM 1,1,C SUBSYSTEM 1,1,C CLASS 2,2,C SUBCLASS 1,1,C REGIME 1,1,C MODIFIER 1,1,C
SYSTEM SUBSYSTEM E = Estuarine 1 = Subtidal 2 = Intertidal M = Marine 1 = Tidal 2 = Intertidal P = Palustrine no subsystems L = Lacustrine 1 = Limnetic 2 = Littoral R = Riverine 1 = Tidal 2 = Lower Perennial 3 = Upper Perennial 4 = Intermittent 5 = Unknown Perennial
CLASS SUBCLASS AB = Aquatic Bed 1 = Submergent Algal 2 = Submergent Vascular 3 = Submergent Moss 4 = Floating - leaved 5 = Floating 6 = Unknown Submergent 7 = Unknown Surface BB = Beach Bar 1 = Cobble/Gravel 2 = Sand EM = Emergent 1 = Persistent 2 = Nonpersistent 3 = Narrow-leaved Nonpersistent 4 = Broad-leaved Nonpersistent 5 = Narrow-leaved Persistent 6 = Broad-leaved Persistent FL = Flat 1 = Cobble/Gravel 2 = Sand 3 = Mud 4 = Organic 5 = Vegetated Pioneer 6 = Vegetated Non-pioneer FO = Forested 1 = Broad-leaved Deciduous 2 = Needle-leaved Deciduous 3 = Broad-leaved Evergreen 4 = Needle-leaved Evergreen 5 = Dead 6 = Deciduous 7 = Evergreen ML = Moss/Lichen 1 = Moss 2 = Lichen OW = Open Water/unknown bottom no subclasses RB = Rock Bottom 1 = Bedrock 2 = Boulder RF = Reef 1 = Coral 2 = Mollusc 3 = Worm RS = Rock Shore 1 = Bedrock 2 = Boulder SB = Streambed 1 = Cobble/Gravel 2 = Sand 3 = Mud 4 = Organic SS = Scrub/Shrub 1 = Broad-leaved Deciduous 2 = Needle-leaved Deciduous 3 = Broad-leaved Evergreen 4 = Needle-leaved Evergreen 5 = Dead 6 = Deciduous 7 = Evergreen UB = Unconsolidated Bottom 1 = Cobble/Gravel 2 = Sand 3 = Mud 4 = Organic REGIME
Non-Tidal: A = Temporary B = Saturated C = Seasonal D = Seasonal Well-drained E = Seasonal Saturated F = Semipermanent G = Intermittently Exposed H = Permanent J = Intermittently Flooded K = Artificial U = Unknown W = Intermittently Flooded/Temporary Y = Saturated/Semipermanent/Seasonals Z = Intermittently Exposed/Permanent Tidal:
K = Artificial L = Subtidal M = Irregularly Exposed N = Regular P = Irregular R = Seasonal Tidal S = Temporary Tidal T = Semipermanent Tidal U = Unknown V = Permanent Tidal
MODIFIER:
b = Beaver d = Partially Drained/Ditched f = Farmed h = Diked/Impounded r = Artificial s = Spoil x = Excavated