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原文传递 Performance of GEOID09 for Height Conversion in Ohio, Executive Summary Report.

题名：	Performance of GEOID09 for Height Conversion in Ohio, Executive Summary Report.
作者：	D. Grejner-Brzezinksa; K. Edwards;
关键词：	height modernization,geodesy/global positioning system, orthometric height, ellipsoidal height/global positioning system, orthometric height, ellipsoidal height
摘要：	This study evaluates Height Modernization issues related to NGS hybrid geoid performance (specifically GEIOD09 and GEOID03) for height conversions between NAVD88 and NAD83 for the state of Ohio and quality of gravity and height data needed to produce a cm-accurate gravimetric geoid. The hybrid geoid is of particular significance in this study, because an accurate hybrid geoid would support both accurate height conversions as well as improve orthometric (MSL) height determination, facilitating the almost-total replacement (except in GPS-antagonistic environments) of traditional leveling exercises by GPS leveling, a much more cost- and labor-efficient heighting technique than its traditional counterpart. / Title Note: Executive summary rept. / Supplementary Notes: See also PB2011-102679, Final Report. Sponsored by Federal Highway Administration, Columbus, OH. Ohio Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A01/MF A01 / Monitor Agency Acronym: FHWA/OH / Monitor Agency Number: 2010/13-EXSUM / Corporate Author Code: 045281007 / Classifivation: Unclassified report
报告类型：	科技报告