2004 UC Proceedings Abstract
Height Modernization Track: Surveying Author(s): Curt Smith Height Modernization is a series of activities designed to advance and promote the determination of accurate, reliable elevations using Global Positioning System (GPS) technology in conjunction with traditional spirit leveling, gravity, and modern remote sensing information. It includes research and development activities seeking to improve the determination of geometric elevations by GPS surveys as well as activities seeking to improve the determination of geoid height. It includes activities leading to improved height determination both for the static surveyor and for the moving navigator. An example of the need for height modernization. Several states, along with North Carolina, have launched major efforts to update vertical positions with height modernization. On September 15, 1999, Hurricane Floyd dropped 21 inches of rain on North Carolina, damaging more than 67,000 homes and destroying nearly 8,000. Many of the homeowners did not have flood insurance, because their residences were built on land that had not been designated as flood prone on the Federal Emergency Management Agency's (FEMA) Flood Insurance Rate Maps (FIRMs). Curt Smith National Geodetic Survey P.O. Box 140533 Boise , ID 83714 US Phone: 208-332-7197 E-mail: Curt.Smith@noaa.gov |
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