Datums, Projections, and Coordinate Systems

• Mapping Systems General Reference from Trimble
• What are Coordinate Systems, Projections, and Datums?
• Coordinate Systems overview
• Map Projections overview
• Datums and Coordinate Systems (PowerPoint, 4.30 MB)
• Using Maps with GPS—from Kerri Mich, Santa Fe NF (PowerPoint, 1.45 MB)
• Converting GPS Data to NAD83 from NAD27
• Datum Transformations between WGS84-NAD83-NAD27 (Acrobat Document, 200 KB)
• Resolving the Datum Transformation Issue—Trimble support note (Acrobat Document, 292 KB)
• Understanding Datum, Projection, and Transformation in ArcPad 7 (Acrobat Document, 385 KB)