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West Virginia’s Coal Fields LiDAR Project Update by Larry Evans, WV DEP. Presented at WVAGP meeting on 3 Nov 2011.
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West Virginia’s Coal Fields LiDAR Project Update
WVAGP MeetingNovember 3, 2011
NRAC’s Last Project Status Map for WVDEP
Slide 2
Statewide LiDAR Delivered So Far
Slide 3
Frist deliverable has been QC checked by FEMA’s LiDAR QC Contractor Dewberry successfully
LiDAR Coverage, by County
Slide 4
Table top right counties shows additional counties with zero to partial LiDAR coverage as of Autumn 2011 as a result of WVDEP’s LiDAR work. Each county lists its corresponding percentage of total coverage. Additional counties confirmed to have county wide LiDAR are Cabell, Jefferson, Kanawha and Raleigh with new county-wide coverage in 2011. There may be more in the northern or eastern panhandles.
Table above lists coal field counties with 100% coverage as a result of WVDEP’s LiDAR flights (the exception is Marion which flew their own mission but shared the data with WVDEP via WVU NRAC).
Spatial Extent by watershed not county
Slide 5
First Derived Dataset
Slide 6
Second Derived Dataset
Slide 7
Third Derived Dataset
Slide 8
Resolution and Change Comparison
Slide 9
At this scale, differences in data resolution and change over time are not widely noticeable. However, upon further analysis, significant differences in resolution and change become evident, as shown in the next
slide…
WVDEP 2009 Data
WVSAMP 2003 Data
Resolution and Change Comparison
Slide 10
WVDEP 2009 Data
WVSAMP 2003 Data
The image above is a portion of the most recent LiDAR flown by West Virginia University (WVU) for WV Department of Environmental Protection (WVDEP). The image below is a portion of the data provided by the West Virginia Statewide Addressing and Mapping Project (WVSAMP). Both examples are from the same region in Boone County, West Virginia. Changes to the landscape that have occurred since the date of data collection by WVSAMP versus the date of collection from the WVDEP LiDAR are clearly visible. This comparison also shows the considerable improvement in resolution between the two datasets.
Change in Landscape
Change in Resolution
Hillshade of a Mining Site, Wyoming County, WV
Slide 11
5’ Contours Overlaid on Hillshade
Slide 12
5’ Contours of the Mining Site
Slide 13
LiDAR, Blair Mountain, and Viewshed Analysis
Slide 14
WVDEP’s first official use of this LiDAR data was a viewshed analysis investigating
existing and proposed mining permits around Blair Mountain.
LiDAR, Blair Mountain, and Viewshed Analysis
Slide 15
Data Access via ArcGIS Server
Slide 16
For All
CAD &
GIS Users
• Derived Datasets as REST geoservices …– DEM– Grid– Hillshade– Contours– Canopy height– Slope– Aspect– Intensity image– … Possible building footprints
Raw LAS File Distribution
• WV View first deliverables there next week
Slide 17
The End
Slide 18
Without more partners soon, the LiDAR capability at WVU is headed for …
Future Data Product Building Footprints
Slide 19
Future Data Product Intensity Image
Slide 20