Oops! Something went wrong, please try again later.
From providing information related to oil and mineral discoveries to helping after fatal landslides, Division of Geological & Geophysical Surveys staff …
What is a datum and why do I need to care about tidal datums?
A:
A vertical datum is a reference surface from which we can measure elevations on the earth's surface. The North American Vertical Datum of 1988 (NAVD88) is currently...
Save
Share
More
