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ArcGIS users can consume Imagery and Elevation services in GDA2020 by running an on the fly projection. An on-the-fly projection will not change the underlying data in any way, it merely displays the data in a new coordinate reference system (CRS) temporarily. These projections ensure that data aligns and draws in the desired map’s CRS, even though if it may be stored differently.
Please see the Attachments Coordinate Systems and Transformations for GDA2020 section of this document for more information and workflow diagrams on Coordinate Systems, and how the GDA2020 transformation is enabled in the Department of Resources Imagery and Elevation Web Services.
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