SAMPLE_TYPE	COLUMN_NAME	LABEL	RANGE_LOW	RANGE_HIGH	LEGAL_VALUES
VEGTYPE	ALGAE	% Cover of filamentous or mat forming algae	0	100	
VEGTYPE	ARBOREAL_ABUNDANCE	Abundance of arboreal epiphytic byrophytes and lichens			|NONE|SPARSE|COMMON|ABUNDANT
VEGTYPE	BRYOPHYTES	"% Cover of Byrophytes growing on ground surfaces, logs, rocks, etc."	0	100	
COLUMN	DATE_COL	Date the site visit occurred			
GROUND	DEPTH_NE	Litter depth (cm) in center of 1-m2 quadrat at NE corner of Veg Plot			
GROUND	DEPTH_SW	Litter depth (cm) in center of 1-m2 quadrat at SW corner of Veg Plot			
GROUND	EXPOSED_GRAVEL	Cover exposed gravel/cobble (~2mm to 25cm)	0	100	
GROUND	EXPOSED_ROCK	Cover exposed rock (> 25cm)	0	100	
GROUND	EXPOSED_SOIL	Cover exposed soil/sediment	0	100	
VEGTYPE	FLOATING_AQ	% Cover Floating Aquatic Vegetation	0	100	
VEGTYPE	HMED_VEG	% Cover Vegetation > 5m to 15m tall	0	100	
COLUMN	IND_DOMAIN	"Name of indicator group within a study. Valid values are EXTENT (all sites evaluated), CORE (all sites sampled for main indicators), HAND for hand-picked"			
VEGTYPE	LIANAS	"% Cover Lianas, vines, and vascular epiphytes"	0	100	
VEGTYPE	LICHENS	"% Cover of Lichens growing on ground surfaces, logs, rocks, etc."	0	100	
VEGTYPE	MACROALGAE	% Cover of macroalage (freshwater species/seaweeds)	0	100	
VEGTYPE	MED_VEG	% Cover Vegetation  >2m to 5 tall	0	100	
VEGTYPE	PEAT_MOSS	Bryophytes dominated by Sphagnum or other peat forming moss			|Y
COLUMN	PLOT	Plot number of sample			
VEGTYPE	PLOT_NOT_SAMPLED	Plot was not sampled			
GROUND	PREDOMINANT_DEPTH	Predominant water depth	0		
GROUND	PREDOMINANT_LITTER	Predominant litter type			|CONIFEROUS|DECIDUOUS|GRAMINOID|FORB|FERN|BROADLEAF
DESIGN	PSTL_CODE	"State two letter postal code for site sampled. 50 state postal codes plus AS, MP, GU, PR, VI for American Samoa, Commonwealth of Northern Marianas, Guam, Puerto Rico and Virgin Islands.  No missing or \blank\"" values allowed."""			
COLUMN	PUBLICATION_DATE	Date of data file publication			
COLUMN	SAMPLE_TYPE	Code identifying sample type			
DESIGN	SITE_ID	"Unique Site ID for the study and design cycle sampled. Preferred form is NWCnn_MM-xxxxx  where  nn is current cycle year (11, 16, 21), MM is two letter state code, and xxxxx is between 10001 and 99999.  No missing or \blank\"" values allowed."""			
VEGTYPE	SMALL_VEG	% Cover Vegetation 0.5 to 2m tall	0	100	
DESIGN	STUDY	Study conducted as part of NWCA. NWCA is main study identifying the core NWCA study. A unique site may belong to multiple studies. A study may be a state-specific design where not all the sites are included in NWCA.   No missing or blank values allowed.			Coastal Watersheds|NWCA|Prairie Pothole
VEGTYPE	SUBMERGED_AQ	% Cover Submerged Aquatic Vegetation	0	100	
VEGTYPE	TALL_VEG	% Cover Vegetation > 15m to 30m tall	0	100	
GROUND	TIME	Time water depth measurements were made	500	2100	
GROUND	TIME_FLAG	Flag associated with Time water depth measurements were made			
GROUND	TOTAL_LITTER	Total cover of litter	0	100	
GROUND	TOTAL_WATER	Total cover of water	0	100	
COLUMN	UID	Unique site visit ID			
COLUMN	UNIQUE_ID	"Unique site ID based on location that does not depend on year sampled or any other factor. Form is NWC_ss_nnnnn  where ss state and nnnnn is number that starts at 10001.   No missing or \blank\"" values allowed. NA"""			
COLUMN	VISIT_NO	Sequential visit in each year			
VEGTYPE	VSMALL_VEG	% Cover Vegetation < 0.5m tall	0	100	
VEGTYPE	VTALL_VEG	% Cover Vegetation > 30m tall	0	100	
GROUND	WD_COARSE	Cover of coarse woody debris (> 5cm diameter)	0	100	
GROUND	WD_FINE	Cover of fine woody debris (< 5cm diameter)	0	100