Send the link below via email or IMCopy
Present to your audienceStart remote presentation
- Invited audience members will follow you as you navigate and present
- People invited to a presentation do not need a Prezi account
- This link expires 10 minutes after you close the presentation
- A maximum of 30 users can follow your presentation
- Learn more about this feature in our knowledge base article
Do you really want to delete this prezi?
Neither you, nor the coeditors you shared it with will be able to recover it again.
Make your likes visible on Facebook?
You can change this under Settings & Account at any time.
Spatial Analysis Application to Urban Forestry
Transcript of Spatial Analysis Application to Urban Forestry
data sources and processing in i-Tree Hydro
by Greg Bacon - Fairfax County GIS & Mapping
Prepared for Virginia Association of Forest Health Professionals
The county is 54% forested? That's great!
We're 23 years early
in meeting our
goal of 45%.
What's going on?
7 Cover Classes
x 50 points per class
DEM elevations accurate to within
1.5 ft of surveyed check points
Stereoscopically Derived Mass Points and Breaklines
Digital Elevation Model
Worldview-2 Land Cover Classification
95% of the time
95% Confidence Interval = 53% ± 4%
Worldview-2 Multispectral Imagery
Captured Summer 2011
Highest resolution commercial satellite imagery available (1.8 m)
Stream Gauge Data
Land Cover %
Run model on sub watersheds
Engage other departments in assessing applicability to stormwater permitting
Input land cover raster in future release (?)