Improved Covariance Modeling of Gravimetric, GPS, and Leveling Data in High-Resolution Hybrid Geoids Daniel R. Roman, Ph.D. Research Geodesist Abstract Hybrid geoids are…
Evaluation of the NAVD 88 Using Aerogravity and Lidar Data in the Gulf of Mexico Authors Daniel R. Roman (NGS), John Brozena (NRL), Scott Luthcke (GSFC), Yan Ming Wang (NGS),…
USACE Vertical Datums Workshop National Geodetic Survey Overview International Great Lakes Datum & GRAV-D Presented at a meeting of the Great Lakes Regional Height Modernization…
Status and Plans of the National Geodetic Surveyâs Gravity Database Update Daniel R. Roman and Yan Ming Wang October 13-14, 2005 Austin, Texas DISCUSSION OUTLINE NGS-held…
Improved Covariance Modeling of Gravimetric, GPS, and Leveling Data in High-Resolution Hybrid Geoids Daniel R. Roman, Ph.D. Research Geodesist Abstract Hybrid geoids are…