Jump to content

Search the Community

Showing results for tags 'gda2020'.



More search options

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


Forums

  • Official GDA2020 Forum
    • Welcome to the Official GDA2020 Forum

Blogs

There are no results to display.


Find results in...

Find results that contain...


Date Created

  • Start

    End


Last Updated

  • Start

    End


Filter by number of...

Joined

  • Start

    End


Group


Found 12 results

  1. Mark

    ArcGIS Pro, Metadata and GDA2020

    Our team is in the process of rolling out ArcGIS Pro as part of our new ELA. Am I right in thinking that: Metadata is mandatory in Pro (can't publish data without it)? Pro doesn't current handle ISO 19115-1:2014? The missing metadata tools will be included in Pro 2.4? (Q3 2019?) My information has largely been sourced from https://community.esri.com/ideas/15494-add-iso-19115-12014-and-other-modern-metadata-style-sheets and http://pro.arcgis.com/en/pro-app/tool-reference/appendices/unavailable-tools.htm Cheers, Mark
  2. Is the Federal/State intention still to formally adopt GDA2020 as the National Datum on 01/01/2020 or are we looking at a date beyond that (as with GDA94 which was adopted in 2000)? I know there are many loose ends and decisions to be made at present, but if anyone can provide an official indication it would be much appreciated. Thanks, Mark
  3. 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.
  4. Gordon Sumerling

    GDA2020 & the ArcGIS Platform

    I thought I would provide an update on the status of Esri software and GDA2020. I have posted similar information to Esri Australia's technical blog as well. Well from ArcGIS Pro 2.1 and ArcGIS 10.6 onwards all state, territory and national projections that incorporate the GDA2020 datum are supported. (There is also support at 10.51 and Pro 2.0 but not all State and Territory projects are available) Transformations between the datum's GDA94 and GDA2020 are also supported using both the mathematical seven-parameter similarity transformation or the NTv2.0 transformation grids. ICSM has developed two 2D national transformation grids: · Conformal: simply a grid version of the seven-parameter similarity transformation: the basic difference between GDA94 and GDA2020 coordinates primarily due to plate tectonic movement (approximately 1.7m NNE over 26 years); and · Conformal + Distortion: incorporates the conformal seven-parameter similarity transformation plus localised and regional distortion revealed by incorporating coordinates on ground survey control networks across the nation. These transformation grid files can be downloaded from the ICSM Github site In ArcGIS products these transformation methods are listed as · GDA_1994_To_GDA2020_1 : seven-parameter similarity transformation · GDA_1994_To_GDA2020_NTv2_C : Conformal Grid · GDA_1994_To_GDA2020_NTv2_CD : Conformal + Distortion Grid As the software is not delivered with the Grid files only the seven-parameter similarity transformation will appear in ArcGIS until the Grid files are loaded to the product directories: · ArcGIS Desktop : Program Files (x86)\ArcGIS\Desktop10.5\pedata\ntv2\australia · ArcGIS Server: Program Files\ArcGIS\Server\pedata\ntv2\australia · ArcGIS Pro: Program Files\ArcGIS\Pro\Resources\pedata\ntv2\australia And renamed: · FROM GDA94_GDA2020_conformal.gsb TO AUS942020_C.gsb · FROM GDA94_GDA2020_conformal_and_distortion.gsb TO AUS942020_CD.gsb With this in place it is now possible to use the Project geoprocessing tool to convert from GDA94 to GDA2020. A final note for ArcMAP & ArcGIS Pro Users, If you are displaying GDA94 data in a GDA2020 map frame then under the Map's Transformation properties you need to specify the transformation to use before the GDA94 data is projected dynamically to GDA2020. Cheers Gordon
  5. 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.
  6. TasSurveyor

    GDA2020 officially released

    Leading up to and in conjunction with the official release of GDA2020 in December 2017 http://www.icsm.gov.au/gda/news.html the datum section of the ICSM website has seen quite a few changes to its structure and content - check it out at http://www.icsm.gov.au/gda/index.html
  7. Andrei Veselov

    GDA 2020 support in Mapinfo

    In December 2017 ICSM (Intergovernmental Committee on Surveying and Mapping) published additional details about GDA 2020 datum support. GDA 2020 technical manual can be found here: http://www.icsm.gov.au/gda/GDA2020TechnicalManualV1.1.1.pdf It is very straightforward to add support for GDA 2020 datum to MapInfo by modifying mapinfow.prj file. We will use custom datum definition based on 7-parameter similarity transformation published by ICSM. For Longitude/Latitude coordinate system you need to add this line to PRJ file: "Longitude / Latitude (Australia GDA 2020)", 1, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0 For MGA2020 grid you need to add this group to PRJ file: "--- Map Grid of Australia 2020 (MGA2020) ---" "MGA2020 Zone 47", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 99, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 48", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 105, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 49", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 111, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 50", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 117, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 51", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 123, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 52", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 129, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 53", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 135, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 54", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 141, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 55", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 147, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 56", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 153, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 57", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 159, 0, 0.9996, 500000, 10000000 "MGA2020 Zone 58", 8, 9999, 0, -0.06155, 0.01087, 0.04019, 0.0394924, 0.0327221, 0.0328979, 0.009994, 0, 7, 165, 0, 0.9996, 500000, 10000000 ICSM also published NTv2 grids that can be used to calculate coordinate transformation between GDA 94 and GDA 2020 datums. We will publish details on how to incorporate them into your version of MapInfo shortly. Version 17.0 will support GDA 2020 datum right out of the box. We are also investigating how to support time dependend datum transformation in a future.
  8. Vanessa Ung

    20171012 SSSI GDA2020 Workshop Landgate

    Version 1.0.0

    75 downloads

    Slide pack of SSSI GDA2020 Workshop by Landgate on 12th OCtober 2017
  9. TasSurveyor

    GDA2020 Transforms & ArcGIS

    see new article by Gordon Sumerling https://esriaustraliatechblog.wordpress.com/2017/06/08/gda2020-transformations-arcgis/ Explanation of difference between the two grids - Conformal and full distortion - and their usage will be available when the grids are released
  10. TasSurveyor

    GDA2020 Interim Release note

    See the latest GMIWG update for details http://www.icsm.gov.au/gda2020/gmiwg.html
  11. Hi, For all you avid forum watchers expect an important information release about GDA2020 very soon
  12. TasSurveyor

    Locate 17 - Plenary Session : ICSM Panel

    until
    PLENARY SESSION ICSM Panel discussion – Impacts of Datum - National and International Perspective
×