Abstract
 Using Commercial Satellite Imagery and GIS to Update NOAA ENCs Track: Cartography and Map Production Author(s): Michael Espey Traditionally, coastal mapping at NOAA's National Geodetic Survey (NGS) and its predecessor agencies has been a meticulous labor intensive process whose end results were among the highest accuracy national coastal shoreline data available in the world. For many years limited programmatic resources have impeded providing new shoreline delineations in a timely manner. Now with the introduction of GIS for data generation and quality control plus the availability of high resolution commercial satellite imagery, rapid updates to shoreline data are finally possible for NOAA's traditional hardcopy nautical charts as well as the new NOAA Electronic Navigational Chart (NOAA ENCŪ) suite. This paper outlines a new workflow for validation and update of ENC shoreline and coastal features which crosscuts NOAA's Office of Coast Survey (OCS) and NGS. Michael Espey NOAA RSD 1315 East-West Hwy N/NGS33 Silver Spring , MD 20910 US Phone: 301-713-2685 E-mail: mike.espey@noaa.gov |
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