land cover project (epan 2010)

Jefferson County CommissionPatrick Corley GIS Internship

Trails

Legend Hiking/Biking Trails

ExperienceDigitizing Attribution UpdatingCartography

SignificanceTool to illustrate lack of trail networking and

to plan new trailsTourism

Subdivisions

Before

After

ExperienceEditing FeaturesGeoreferencing

SignificanceCurrent data for future planning and land-use

research

Zip Codes

SignificanceProvide data to Postal Service to assign more

accurate addressingHelp eliminate public safety concern

*Status: Under Review*

Landcover

2007

2009

2007

2009

2007

2009

Before• “Blobby” buildings• Tree Canopy overhanging

roads• Underrepresented sidewalks

After• Better footprints• Cleaned up roads

LC_type Preedit Area(Sq. Ft.) Postedit Area(Sq. Ft.) Difference(Sq. Ft.) % ChangeTree Canopy 4595555.16 4657121.46 61566.30 1.3%Grass/Shrub 1920557.55 1705835.42 -214722.13 -11.2%Bare Soil 13303.93 47810.87 34506.94 259.4%Water 396.00 23490.03 23094.03 5831.8%Building 1325575.46 1112009.44 -213566.02 -16.1%Road/Railroad 954659.91 1085528.50 130868.59 13.7%Other Paved 1072573.43 1250833.04 178259.61 16.6%

Landcover Analysis

Decrease in Building area

Increase in Paved Surface area

Thanks!

Questions or Comments?