ECPD - Upgrades to AGRS Webinar Series: PART THREE Australian Terrestrial Reference Frame
Date & Time
Monday, 21 Oct 2019
- 1:00 pm
NOTE: This webinar was presented live on 21 October 2019. Register to view the recording, as listed below.
The SSSI Young Professionals partnered with ICSM to present a four part lunchtime webinar series on upgrades to the Australian Geospatial Reference System (AGRS); the collection of datums, reference frames, models, infrastructure and standards needed for accurate 4D positioning.
The presenter was Nicholas Brown from Geoscience Australia. Nicholas is the Director of National Geodesy, Chair of the Permanent Committee on Geodesy and Australian Representative on FIG Commission 5. He is responsible for the development and refinement of the national coordinate reference frame, absolute gravimetry program, InSAR program and national geodesy products including geoid models. Nicholas has a Bachelor of Applied Science in Geomatics from RMIT and a Masters in Geophysics (Space Geodesy) from ANU.
This event is Part 3: Australian Terrestrial Reference Frame.
The Australian Government has committed $225m to Geoscience Australia to provide 5-10 cm accurate positioning to anyone, anytime, anywhere in Australia by 2023. This is a significant improvement from the 5-10 m accuracy you can currently achieve using GPS enabled devices.
In anticipation for the growing use and reliance on positioning technology, the Intergovernmental Committee on Surveying and Mapping’s Permanent Committee on Geodesy (ICSM PCG) is leading the upgrade of a number of elements of Australia’s Geospatial Reference System to ensure Australian’s can maximise the benefits of precise positioning. The elements of the Australian Geospatial Reference Systems being upgraded include:
- static datum (from GDA94 to GDA2020)
- introduction of a time dependent reference frame (Australian Terrestrial Reference Frame)
- introduction of a new reference surface for heights (Australian Vertical Working Surface)
- improved geodetic infrastructure, and
- standards development to improve access and efficiency of geodetic data.
Part 3 will take things further and explain why Australia is introducing a time dependent reference frame; that is, a datum in which the coordinates of features will change with time due to the motion of the Australian tectonic plate (7 cm/yr). We will describe how the choice of using GDA2020 (static) and ATRF (time-dependent) will be left up to the user and will dependent on the task. We will discuss the emerging user base that need time dependent coordinates and the important role spatial professionals will play in providing end users with accurate positions. Finally we will describe how the International Terrestrial Reference Frame, Australian Terrestrial Reference Frame or GDA2020 are linked.
1.0 SSSI or BOSSI CPD Point | Event code: SSSIYP115/SSSINSW11520
Note: to receive BOSSI points however, you must complete a questionnaire on the webinar. Click here to download a copy.
Please register below to receive details on how to view the webinar.
Katie Le Miere