Watershed and Volume Analysis using a LiDAR DEM
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A study was conducted using LiDAR data and GIS analysis to determine the watershed and potential water storage capacity of a quarry in Prospect Park, New Jersey. The analysis included creating a DEM from the LiDAR data, delineating the quarry's watershed, and calculating that filling the quarry to 200 feet could store around 0.56 billion gallons of water.
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Watershed and Volume Analysis using a LiDAR DEM
- 1. Watershed and Volume Analysis using a LiDAR DEM Tillcon Quarry - Prospect Park Jeff Hoffman, N.J. Geological Survey, NJDEP
- 2. Pumping at quarry to dewater. But no allocation permit. NJDEP investigation . 2007 imagery
- 3. 3-meter spacing LiDAR data. Draft DEM. 3-D Analyst tools to clip and contour elevations.
- 4. Spatial Analyst Fill Quarry’s watershed?
- 5. Spatial Analyst Fill Flow Direction Flow Accumulation 11-100 101- 1,000
- 6. Spatial Analyst Fill Flow Direction Flow Accumulation Create flow lines.
- 7. Spatial Analyst Fill Flow Direction Flow Accumulation Create flow lines. Create vertices.
- 8. Spatial Analyst Fill Flow Direction Flow Accumulation Create flow lines. Create vertices. Pick pour point. Create watershed.
- 9. 87 acres Reservoir potential?
- 10. 0.56 billion gallons Raster tool: Cut/Fill Actual elevation Filled to 200’ Raster tools: Reclassify, Minus
- 11. Reservoir Volumes, northeast New Jersey (billions of gallons)