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.
- The GDA94 datum does not change over time,
- Australia has moved north-east by about 1.5 metres since 1994…
- In 2000, uncorrected GPS locations were “accurate” to 100 metres, and
- 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.