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Submerged Aquatic Vegetation Cooperative Habitat Mapping Program

Color aerial photography was taken of Back Bay, Currituck Sound and Kitty Hawk Bay in October 2003, at 12,000' AMT (scale 1:24000). Specifications developed by NOAA (Finkbeiner et al. 2001) and the Virginia Institute of Marine Science (VIMS) (Orth et al. 2001) for best identifying SAV using remotely sensed data were followed. Color diapositives were produced and scanned using a photogrametric scanner. Kyle Hall, research associate with the ECSU Remote Sensing Program georeferenced and mosaiced the digital imagery and conducted photo-interpretation of spectral signatures to digitize SAV habitat. Polygons were generated using "heads-up" digitizing on the monitor. Metadata was generated in ArcGIS, peer reviewed and is available upon request.

Locations within the study area were visited before and after the photography to aid in photo interpretation. Secchi depth, surface and bottom temperature, salinity, dissolved oxygen and other water quality parameters were taken during field surveys. SAV samples and substrate were also collected utilizing a clam rake. Samples were transported back to ECSU to add to the herbarium collection. Each location was given a GPS coordinate and incorporated as supplementary point data. Additional point data was generated through signature development. SAV bed density estimates were made according to literature by Orth et all. who cited Panie, 1981.

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*System Requirements: Windows 98/95, 2000, XP; ArcGis 8.x/9.x; Compression Software (Winzip)