Office of Geomatics: Coordinate Systems Analysis
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Our function: Showing the way to WGS 84
Our customers: Unlimited
Quick Links:
General
- Definitions Explanation of selected terms.
- Frequently asked questions Commonly asked questions from CSAT customers.
- CSAT Publications Publications of Interest
- "BASIC GEODESY" CSAT's monthly articles on datums, coordinates, etc.
Guidance
- Datum Transformations Basics of datum transformations.
- Grids and Reference Systems Diagrams and explanation of the UTM system, MGRS, and GEOREF.
- Quick-Start Guide to map projections for NGA ArcGIS users.
ArcMap Grid Guide on how to use ArcMap to generate MGRS and other map grids- MGRS Lettering Schemes explains the two schemes, which ellipsoid uses which scheme, etc.
- Military Map Reading 201 An excellent NGA publication explaining the UTM and MGRS systems, with illustrations of NGA products. In Adobe Acrobat.
- Polar Stereographic Conversion A map projection computation to convert between Latitude of True Scale and Scale Factor at the Pole.
Tools/Data
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GEOTRANS Download free DoD coordinate conversion and datum transformation software.
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GIS Grid Layers Download shapefiles of MGRS / UTM grids, zones.
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On-line Geodetic Datum Reference Guide Geodetic Datum Reference to search by country or datum
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Gold Data v6.3 Testing for Datum Transformations and Coordinate Conversion Software
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Coming Soon CSAT Magnetic Declination Page.