GDA2020 is coming!

Australia is modernising its datum in two stages over the next few years and stage one starts next month.

Wait! What?!? Why?
I hear you ask with gasps of horror.
Well, it is necessary for a couple of reasons.

  1. The GDA94 datum does not change over time,
  2. Australia has moved north-east by about 1.5 metres since 1994…
  3. In 2000, uncorrected GPS locations were “accurate” to 100 metres, and
  4. what was the accuracy you wanted for your last set of field readings again?

The Intergovernmental Committee on Surveying and Mapping (ICSM) has put together a short animation to help explain:
Please keep the volume down if you are in a shared space 🙂

They also have a page of GDA FAQ’s that are worth checking out and a fact sheet if you want something to keep as a reference.

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