1. GIS Aspect
We used GIS to extract the watershed basin we were going to focus on so that we could obtain the NLCD landcover data for the catchments the development was going to be in.

2. Catchments of Interest

3. The Process
Clipped Haw River and New Hope watersheds from a file containing the entire water network for the Southeast U.S.
Overlaid NHD water body to locate Jordan Lake
Overlaid files for primary, secondary, and local roads to get an exact location
Overlaid catchment data
Added NHD flowline attributes data table
Overlaid NED file for the area to view the elevation of catchments

4. The Process
Joined catchment shapefile with NLCD flowline attributes to get CUMNLCD
Used identify function to select catchment of interest and obtain information about landcover
Compiled data to get total values

5. NLCD Classifications 11 Open Water 12 Perennial Ice/Snow
21 Developed, Open Space
22 Developed, Low Density
23 Developed, Medium Density
31 Bare Rock/Sand/Clay
32 Quarries/Strip Mines/Gravel Pits
33 Transitional
41 Deciduous Forest
42 Evergreen Forest
43 Mixed Forest
51 Shrub
61 Orchards/Vineyards/Other
71 Grassland/Herbaceous
81 Pasture/Hay
82 Row Crops
83 Small Grains
84 Fallow
85 Urban/Recreational Grasses
91 Woody Wetlands
92 Emergent Herbaceous Wetlands

6. Emergent Herbaceous Wetlands
COMID
COMID
NLCD #
% of landcover
Land Area (km^2)
Total Land Area (km^2) 11
Open Water
0.164
0.0053 31
Bare Rock/Sand/Clay
0.036
0.0012 33
Transitional
1.47
0.0474 41
Deciduous Forest
62.04 2
57.44
0.562
2.562 42
Evergreen Forest
21.46
0.692
15.63
0.153
0.845 43
Mixed Forest
12.16
0.392
26.84
0.263
0.655 81
Pasture/Hay
1.44
0.046 82
Row Crops
0.15
0.0048 91
Woody Wetlands
0.96
0.031
0.09 92
Emergent Herbaceous Wetlands
0.11
0.0035
Total Area:
3.226
0.979
4.202

7. What’s In Store?
How will the nutrient runoff rates be affected if we move the development farther upstream?