Digital Commons Network^™

Efficiency And Detection Accuracy Using Print And Digital Stereo Aerial Photography For Remotely Mapping Vernal Pools In New England Landscapes, Fred J. Dibello, Aram J K Calhoun, Dawn E. Morgan, Amanda F. Shearin

Publications

Aerial imagery has been used to identify potential vernal pools (PVPs) using stereo photographic prints. Stereoplotter photogrammetry now allows digital aerial images to be viewed in stereo (3-Dimensional) to enhance remote sensing capabilities. We used both print and digital imagery to map PVPs in 10 towns in Maine, USA. We used field verification of 771 PVPs to explore efficiency and accuracy of the two methodologies and to determine effects of pool size and land cover on accuracy. We compared known pool locations with National Wetland Inventory (NWI) data. The stereoplotter was more efficient and easier to use than prints. In …