"VARIABLE"	"DESCRIPTION"	"UNITS"	"RANGE_LOW"	"RANGE_HIGH"	"LEGAL_VALUES"
"ACHNANTHIDIUM"	"Proportion of diatom valves in the genus Achnanthidium"	"NONE"	0	1	
"COUNTOFORDER"	"Number of non-diatom orders"	"NONE"	0		
"CYMBELLA"	"Proportion of diatom valves in the genus Cymbella"	"NONE"	0	1	
"CYMBELLA_LATO"	"Proportion of diatom valves in the genus Cymbella sensu lato"	"NONE"	0	1	
"DATE_COL"	"Date of field collection"				
"ENCYONEMA"	"Proportion of diatom valves in the genus Encyonema"	"NONE"	0	1	
"ENCYONOPSIS"	"Proportion of diatom valves in the genus Encyonopsis"	"NONE"	0	1	
"NFAMILIES_VALVE"	"Number of diatom families per valve counted"	"NONE"	0		""
"NFAMILY_UNITS"	"Number of non-diatom families per natural unit counted"	"NONE"	0		
"NGENERA_UNITS"	"Number of non-diatom genera per natural unit counted"	"NONE"	0		
"NGENERA_VALVE"	"Number of diatom genera per valve counted"	"NONE"	0		
"NITZSCHIA"	"Proportion of diatom valves in the genus Nitzschia"	"NONE"	0	1	
"NONRSATAXA_CELLS"	"Number of NRSA taxa based on cells counted"	"NONE"	0		
"NONRSATAXA_UNITS"	"Number of NRSA taxa per natural unit counted"	"NONE"	0		
"NORDER_UNITS"	"Number of non-diatom orders per natural unit counted"	"NONE"	0		
"NORDERS_VALVE"	"Number of diatom orders per valve counted"	"NONE"	0		
"NTAXA_DIAT"	"Number of diatom taxa counted"	"NONE"	0		
"PI_DISTMMISENS"	"Proportion of diatom Individuals characteristically found at  minimally disturbed sites in the Western EMAP project"	"NONE"	0	1	
"PI_L1PTLSENS"	"Proportion of diatom individuals in low nutrient taxa based on PTLSENS trait"	"NONE"	0	1	
"PI_NUTMMISENS"	"Proportion of diatom individuals in low nutrient taxa based on NUTMMISENS"	"NONE"	0	1	
"PICOL_BIOA"	"Proportion of algal biovolume as colonial taxa"	"NONE"	0	1	
"PICOL_CELA"	"Proportion of algal cells as colonial taxa"	"NONE"	0	1	
"PIFIL_BIOA"	"Proportion of algal biovolume as filamentous taxa"	"NONE"	0	1	
"PIFIL_CELA"	"Proportion of algal cells as filamentous taxa"	"NONE"	0	1	
"PIHADNT_VDIA"	"Proportion of diatom valves in highly adnate taxa"	"NONE"	0	1	
"PIHMOTD_VDIA"	"Proportion of valves of diatoms that are in taxa characterized as highly motile in sediments"	"NONE"	0	1	""
"PIMOTD_VDIA"	"Proportion of diatom valves as motile taxa"	"NONE"	0	1	
"PIPLNK_BIOA"	"Proportion of algal biovolume as planktonic taxa"	"NONE"	0	1	
"PIPLNK_CELA"	"Proportion of cells of all algae that are in Taxa characteristically found in plankton"	"NONE"	0	1	
"PIPLNK_VDIA"	"Proportion of diatom valves as planktonic taxa"	"NONE"	0	1	""
"PISENS_ACHNANTHACEAE"	"Proportion of Individuals in Taxa characteristically found at minimally disturbed sites in the Western EMAP project in the diatom family Achnanthaceae"	"NONE"	0	1	
"PISENS_DIATOMACEAE"	"Proportion of Individuals in Taxa characteristically found at minimally disturbed sites in the Western EMAP project in the diatom family Diatomaceae"	"NONE"	0	1	
"PISENS_NAVICULACEAE"	"Proportion of Individuals in Taxa characteristically found at minimally disturbed sites in the Western EMAP project in the diatom family Naviculaceae"	"NONE"	0	1	
"PISTLK_VDIA"	"Proportion of valves of diatoms that are in taxa characterized as highly stalked"	"NONE"	0	1	""
"PITOL_NAVICULACEAE"	"Proportion of Individuals in Taxa characteristically found at highly disturbed sites in the Western EMAP project in the diatom family Naviculaceae"	"NONE"	0	1	
"PITOL_NITZSCHIACEAE"	"Proportion of Individuals in Taxa characteristically found at highly disturbed sites in the Western EMAP project in the diatom family Nitzschiaceae"	"NONE"	0	1	
"PLANOTHIDIUM"	"Proportion of diatom valves in the genus Planothidium"	"NONE"	0	1	
"PLIVE"	"Percent live diatoms"	"NONE"	0	100	
"PT_DISTMMISENS"	"Proportion of diatom taxa characteristically found at minimally disturbed sites in the Western EMAP project"	"NONE"	0	1	""
"PT_L1PTLSENS"	"Proportion of diatom taxa in low nutrient taxa based on PTLSENS trait"	"NONE"	0	1	
"PT_NUTMMISENS"	"Proportion of diatom taxa considered low nutrient taxa based on NUTMMISENS"	"NONE"	0	1	
"PTSENS_ACHNANTHACEAE"	"Proportion of taxa characteristically found at minimally disturbed sites in the Western EMAP project in the diatom family Achnanthaceae"	"NONE"	0	1	""
"PTSENS_DIATOMACEAE"	"Proportion of taxa characteristically found at minimally disturbed sites in the Western EMAP project in the diatom family Diatomaceae"	"NONE"	0	1	""
"PTSENS_NAVICULACEAE"	"Proportion of taxa characteristically found at minimally disturbed sites in the Western EMAP project in the diatom family Naviculaceae"	"NONE"	0	1	""
"PTTOL_NAVICULACEAE"	"Proportion of taxa characteristically found at highly disturbed sites in the Western EMAP project in the diatom family Naviculaceae"	"NONE"	0	1	""
"PTTOL_NITZSCHIACEAE"	"Proportion of taxa characteristically found at highly disturbed sites in the Western EMAP project in the diatom family Nitzschiaceae"	"NONE"	0	1	""
"S_N_DIAT"	"Number of NRSA diatom taxa per valve counted"	"NONE"	0		""
"SAMPLE_CAT"	"Sample category (Primary/Duplicate/Filter blank)"				
"SAMPLE_ID"	"Sample ID number."	"NONE"			""
"SAMPLE_TYPE"	"Sample type"				
"SHANDIV_CELLS"	"Shannon diversity of non-diatom algal assemblages based on cells counted"	"NONE"	0		
"SHANDIV_DIAT"	"Shannon diversity of diatom assemblages"	"NONE"	0		""
"SHANDIV_UNITS"	"Shannon diversity of non-diatom algal assemblages based on natural units counted"	"NONE"	0		
"SITE_ID"	"Site identification code"				
"UID"	"Unique site visit ID"				
"VISIT_NO"	"Visit number for that year"				
"YEAR"	"Sampling year"				
"PERI_FIELDCOM"	"Field comment"				
