Geodetic Datum Overview
Geodetic Datums: NAD 27, NAD 83 and WGS84 - GIS Geography
Coordinate Systems — GeoTools 28-SNAPSHOT User Guide
Geodetic datum - Wikipedia
Map Datums
World Geodetic System - Wikipedia
Datums, Coordinate Systems, and Map Projections (GPS) Part 2
Datum
Vertical Datums and Heights - ppt video online download
NOAA/NOS's VDatum: A tutorial on datums
.gif "Coordinate transformations")
Coordinate transformations
Datums | Intergovernmental Committee on Surveying and Mapping
World Geodetic System - Wikipedia
Geodetic Datum Overview
Datum
Coordinate System Jargon: geoid, datum, projection - YouTube
Lesson 5: Geodetic Datums
Datums, Coordinate Systems, and Map Projections (GPS) Part 2
Datums, Projections and Coordinate Systems | Mar. 2017 | CSEG RECORDER
Lesson 5: Geodetic Datums
