wv dep coal lidar project update (3 nov 2011)

West Virginia’s Coal Fields LiDAR Project Update

WVAGP MeetingNovember 3, 2011

NRAC’s Last Project Status Map for WVDEP

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Statewide LiDAR Delivered So Far

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Frist deliverable has been QC checked by FEMA’s LiDAR QC Contractor Dewberry successfully

LiDAR Coverage, by County

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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

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First Derived Dataset

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Second Derived Dataset

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Third Derived Dataset

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Resolution and Change Comparison

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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

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WVDEP 2009 Data

WVSAMP 2003 Data

Resolution and Change Comparison

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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

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5’ Contours Overlaid on Hillshade

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5’ Contours of the Mining Site

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LiDAR, Blair Mountain, and Viewshed Analysis

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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

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Data Access via ArcGIS Server

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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

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The End

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Without more partners soon, the LiDAR capability at WVU is headed for …

Future Data Product Building Footprints

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Future Data Product Intensity Image

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