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BENEFITS OF
NAVD 88
Improved
set of heights on a single vertical datum for North America
Improved FGCS Leveling procedures with higher
production and lower error rates
All NGS National Spatial Reference System data is validated in
a single
data base, with easy access by users for crustal motion studies, adjustments, latest official heights, and
descriptions
Removal of height discrepancies caused by inconsistent
adjustment constraints
