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  1. Today (7/6/2018) Landgate has upgraded its geodetic system (GOLA) to support both GDA2020 and GDA94 coordinates. The geodetic marks can be accessed via Map Viewer Plus by selecting ‘Geodetic’ from the Layer List. This new service will eventually replace Locate. Please note Landgate continues to provide other options to access geodetic marks’ information. For example, you can download Google Earth KML zip file containing a link to all geodetic marks or access them via data.wa.gov.au. Users of the MyLandgate Survey channel are still able to access the geodetic mark information via this portal. For more detailed information on how to access Landgate’s geodetic marks information please visit our website.
  2. On 11 October 2017 the National Measurement Institute signed off and gazetted the Geocentric Datum of Australia (GDA2020) as the new Recognised-Value Standard of Measurement of Position. In effect, GDA2020 is now our legal datum and GDA94 has now been revoked. Here is a link to the Determination. On December 15 2017 Commonwealth Minister for Resources and Northern Australia Matt Canavan announced the GDA2020 datum and its related products. Please visit the Intergovernmental Committee on Survey and Mapping (ICSM) website and Geoscience Australia to access GDA2020 technical documentation and products such as transformation grids and geoid model (AusGeoid2020). This is great news and a credit to the hard work of the Landgate's team of geodesists and surveyors over the past three years. Our team, together with other jurisdictions and Geoscience Australia, has developed this new datum that consists of all Landgate’s survey archive data (50+ years) as well as modern GNSS survey data (including data donated by your organisations). Such a large single adjustment has never been done before and it was possible due to the increased computing power as well as innovative methods of computing and data analysis. It seems 2018 is going to be the year of GDA2020 implementation, which will be a process rather than a single date event. Landgate has committed to change its systems and update datasets to take full advantage of the new datum. The implementation will be done in stages, starting with the update of our geodetic systems (GESMAR and GOLA). Other systems and data, including the Spatial Cadastre Database (SCDB), will be updated later. As the work on updating Landgate's systems to deliver GDA2020 goes on, we recommend you assess your data and system requirements. Knowing your data is vital and keeping proper metadata, especially the definition of the datum and transformation method, will be critical. If you need more information about Landgate's GDA2020 implementation please do not hesitate to contact mysyelf or anyone in our team at geodesy@landgate.wa.gov.au.
  3. Vanessa Ung

    20171012 SSSI GDA2020 Workshop Landgate

    Version 1.0.0

    76 downloads

    Slide pack of SSSI GDA2020 Workshop by Landgate on 12th OCtober 2017
  4. Vanessa Ung

    20170629 SSSI Landgate

    Version 1.0.0

    44 downloads

    Slide pack of SSSI presentation by Landgate on 29th June 2017
  5. Vanessa Ung

    20170623 Rotary Landgate

    Version 1.0.0

    38 downloads

    Slide pack for Rotary Club presentation by Landgate on 23rd June 2017
  6. Vanessa Ung

    20170406 SSSI Landgate

    Version 1.0.0

    37 downloads

    Slide pack of SSSI presentation by Landgate on 6th April 2017
  7. Vanessa Ung

    20161206 WAIS Landgate

    Version 1.0.0

    37 downloads

    Slide pack of WAIS presentation by Landgate on 6th December 2016
  8. Vanessa Ung

    20161118_LSLB SWAGSS Landgate

    Version 1.0.0

    38 downloads

    Slide pack of SWAGSS presentation by LSLB & Landgate on 18th November 2016
  9. Vanessa Ung

    20161021 WASSSIC Landgate

    Version 1.0.0

    36 downloads

    Slide pack of WASSSIC presentation by Landgate 21st October 2016
  10. Vanessa Ung

    20161018 WALIS Update Landgate

    Version 1.0.0

    36 downloads

    Slide pack of Powerpoint Presentation by WALIS Landgate 18th October 2016
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