General Information
Project area general description 
The state of North Carolina 
Are any areas excluded? 
MS River, OH River, IL River and Wabash River excluded. 
Types of flow statistics available 
peak flows (rural and urban/small rural) 
ArcGIS version used for processing 
Originally 9.1, with some updates using 9.2, 9.3, and 10.2.2 
Was TopoGrid used to process DEMs? 
No 
DEM and derivatives projection (general description) 
NC State Plane, NDA83 datum in feet 
DEM and derivatives (fdr, fac, etc.) resolution 
30 feet 
DEM source 
NED 2004 in eastern half of state and Lidar in western half 
Hydrography source 
NHD 1:24,000scale in eastern half of state and NHD derived from Lidar in western half 
Hydrologic unit "walls" source 
WBD boundaries in the east 
Gage basin boundaries source 
not used 
Interactive map snapping tolerance 
3 cells 
Basin Characteristics Methods and Sources
Name 
Description 
Computation method 
Data source 
Report/Details 
Variable label in report 
DRNAREA 
Drainage area in square miles 
Polygon area 
Derived from Flow Direction Grid 
DA 






PCTREG1 
Percent of area covered by hydrologic region 1 
Percent of area 
Derived from region grid 
PCT1 






PCTREG2 
Percent of area covered by hydrologic region 2 
Percent of area 
Derived from region grid 
PCT2 






PCTREG3 
Percent of area covered by hydrologic region 3 
Percent of area 
Derived from region grid 
PCT3 






PCTREG4 
Percent of area covered by hydrologic region 4 
Percent of area 
Derived from region grid 
PCT4 






PCTREG5 
Percent of area covered by hydrologic region 5 
Percent of area 
Derived from region grid 
PCT5 







OUTLETELEV 
Elevation at outlet, in feet 
Computed 
Derived from DEM 








ELEV 
Average basin elevation, in feet 
Computed 
Derived from DEM 






MINBELEV 
Minimum basin elevation, in feet 
Computed 
Derived from DEM 






ELEVMAX 
Maximum basin elevation, in feet 
Computed 
Derived from DEM 






BSLDEM30FT 
Mean basin slope, based on slope percent grid 
Computed 
Derived from slope grid 






BASINPERIM 
Perimeter in miles 
Computed 
Derived from basin polygon 






CSL10_85FM 
1085 slope in feet per mile based on preprocessed elevation data 
Computed 
Derived from longest flow path and DEM 






PRECIP 
Mean annual precipitation in inches 
Percent of area 
PRISM 19712000 






I24H50Y 
24hour, 50year maximum precipitation 
Areaweighted average 
NOAA Atlas 14, volume 2 
I24H50Y 







SSURGOA 
Percent of area hydrologic soil 'A' defined by SSURGO 
Percent of area 
http://soils.usda.gov/survey/geography/ssurgo/ 








SSURGOB 
Percent of area hydrologic soil 'B' defined by SSURGO 
Percent of area 
http://soils.usda.gov/survey/geography/ssurgo/ 








SSURGOC 
Percent of area hydrologic soil 'C' defined by SSURGO 
Percent of area 
http://soils.usda.gov/survey/geography/ssurgo/ 








SSURGOD 
Percent of area hydrologic soil 'D' defined by SSURGO 
Percent of area 
http://soils.usda.gov/survey/geography/ssurgo/ 








PROTECTED 
Percent of area of protected Federal and State owned land 
Percent of area 









LU92BARE 
Percent of area covered by barren rock using 1992 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd92_data.php 
NLCD code 31, 32, 33 






LU92DEV 
Percent of area covered by all densities of developed land using 1992 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd92_data.php 
NLCD 21, 22, 23 







LC92FOREST 
Percent of area covered by forest using 1992 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd92_data.php 
NLCD 41, 42, 43 







LU92PLANT 
Percent of area in cultivation using 1992 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd92_data.php 
NLCD 81, 82








LU92WATER 
Percent of area covered by water using 1992 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd92_data.php 
NLCD 11 







LU92WETLN 
Percent of area covered by wetland using 1992 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd92_data.php 
NLCD 92 







LC01BARE 
Percent of area covered by barren rock using 2001 NLCD v3 
Percent of area 
http://www.mrlc.gov/nlcd01_data.php 
NLCD 31 






LC01CRPHAY 
Percent of area in cultivation using 2001 NLCD v3 
Percent of area 
http://www.mrlc.gov/nlcd01_data.php 
NLCD 81, 82 







LC01DEV 
Percent of area covered by all densities of developed land using 2001 NLCD v3 
Percent of area 
http://www.mrlc.gov/nlcd01_data.php 
NLCD 21, 22, 23, 24 






LC01FOREST 
Percent of area covered by forest using 2001 NLCD v3 
Percent of area 
http://www.mrlc.gov/nlcd01_data.php 
NLCD 41, 42, 43 






LC01HERB 
Percent of area covered by grassland/herbaceous using 2001 NLCD v3 
Percent of area 
http://www.mrlc.gov/nlcd01_data.php 
NLCD 71 






LC01IMP 
Percent impervious of basin area 2001 NLCD v3 
Areaweighted average 
http://www.mrlc.gov/nlcd01_data.php 







LC01SHRUB 
Percent of area covered by shrub land using 2001 NLCD v3 
Percent of area 
http://www.mrlc.gov/nlcd01_data.php 
NLCD 52 






LC01WATER 
Percent of area covered by water using 2001 NLCD v3 
Percent of area 
http://www.mrlc.gov/nlcd01_data.php 
NLCD 11 






LC01WETLND 
Percent of area covered by wetland using 2001 NLCD v3 
Percent of area 
http://www.mrlc.gov/nlcd01_data.php 
NLCD 90, 95 






LC06BARE 
Percent of area covered by barren rock using 2006 NLCD v2 
Percent of area 
http://www.mrlc.gov/nlcd06_data.php 
NLCD 31 






LC06PLANT 
Percent of area in cultivation using 2006 NLCD v2 
Percent of area 
http://www.mrlc.gov/nlcd06_data.php 
NLCD 81, 82 






LC06DEV 
Percent of area covered by all densities of developed land using 2006 NLCD v2 
Percent of area 
http://www.mrlc.gov/nlcd06_data.php 
NLCD 21, 22, 23, 24 






LC06FOREST 
Percent of area covered by forest using 2006 NLCD v2 
Percent of area 
http://www.mrlc.gov/nlcd06_data.php 
NLCD 41, 42, 43 






LC06GRASS 
Percent of area covered by grassland/herbaceous using 2006 NLCD v2 
Percent of area 
http://www.mrlc.gov/nlcd06_data.php 
NLCD 71 






LC06IMP 
Percent impervious of basin area 2006 NLCD v2 
Areaweighted average 
http://www.mrlc.gov/nlcd06_data.php 






LC06SHRUB 
Percent of area covered by shrub land using 2006 NLCD v2 
Percent of area 
http://www.mrlc.gov/nlcd06_data.php 
NLCD 52 






LC06WATER 
Percent of area covered by water using 2006 NLCD v2 
Percent of area 
http://www.mrlc.gov/nlcd06_data.php 
NLCD 11 







LC06WETLND 
Percent of area covered by wetland using 2006 NLCD v2 
Percent of area 
http://www.mrlc.gov/nlcd06_data.php 
NLCD 90, 95 







LC11BARE 
Percent of area covered by barren rock using 2011 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd2011.php 
NLCD 31 







LC11CRPHAY 
Percent of area in cultivation using 2011 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd2011.php 
NLCD 81, 82 





LC11DEV 
Percent of area covered by all densities of developed land using 2011 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd2011.php 
NLCD 21, 22, 23, 24 







LC11FOREST 
Percent of area covered by forest using 2011 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd2011.php 
NLCD 41, 42, 43 







LC11HERB 
Percent of area covered by grassland/herbaceous using 2011 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd2011.php 
NLCD 71 






LC11IMP 
Percent impervious of basin area 2011 NLCD 
Areaweighted average 
http://www.mrlc.gov/nlcd2011.php 






LC11SHRUB 
Percent of area covered by shrub land using 2011 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd2011.php 
NLCD 52 






LC11WATER 
Percent of area covered by water using 2011 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd2011.php 
NLCD 11 






LC11WETLND 
Percent of area covered by wetland using 2011 NLCD 
Percent of area 
http://www.mrlc.gov/nlcd2011.php 
NLCD 90, 95 







The North Carolina StreamStats introductory page here has additional information regarding the application, including links to reports, cooperators, and other explanatory information.
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