Geocentric Datum of Australia
Brochures

Published Brochures

• 'Know Where You Stand with GDA'     PDF format, 2.9MB)
• 'Get In Step With the Geocentric Datum - Discussing the Business Issues'     PDF format, 185KB

Information Factsheets

• 'Maps and the GDA'     PDF format, 44KB
• 'Transformation Options'     PDF format, 64KB
• 'GDA Grid Transformation Using Distortion Modelling'     PDF format, 54KB
• 'What is the difference between WGS84 and GDA94?'     PDF format, 30KB

Other Useful Information

The National Mapping Division of Geoscience Australia has made available a handy Map Reading Guide on How to Use Topographic Maps.  This guide is particularly useful for GPS users as it deals with the practicalities of how to use such technology with hardcopy maps.

In general the contents cover:
  - How to read a topographic map (including scales, datums, co-ordinates etc)
  - Planning a trip
  - Using a GPS (with a map)
  - The magnetic compass
  - Simple uses of a map.

The guide is available for download from the following Geoscience Australia site and also can be purchased at the reasonable rate of $2 per copy.

Download Adobe Reader

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