Defines geodesy and introduces the National Geodetic Survey. View a tutorial on the history, elements and modern methods of geodesy. Applications of mapping are illustrated: determining land boundaries and shorelines;...

A one-stop resource for information on most, if not all, environmental/marine science disciplines. Site features WINDandSEA: The Oceanic and Atmospheric Sciences Internet Locator, where you can access NOAA and external...

NOS is dedicated to creating innovative products that enlighten students and educators about the breadth of scientific research, technology, and activities they conduct. Resources include Discovery Kits, which consist of...

This reference provides an introduction to the geoid, the equipotential surface of the Earth's gravity field which best fits global mean sea level. There is a narrative of early attempts to describe the geoid, and...