Flood Elevation 2 : Height of the water surface above an established elevation datum such as the National Geodetic Vertical Datum, North American Vertical Datum, or mean sea level
Coastal Construction Manual: Principles and Practices of Planning, Sitting, Designing, Constructing, and Maintaining Residential Buildings in Coastal Areas (Fourth Edition), Glossary, FEMA P-55 / Volume II, Washington, DC, USA 2011. http://www.fema.gov/media-library-data/20130726-15 10-20490-1986/fema55_volii_combined_rev.pdf, (CoaStormEmr - Amer) {887}