ArcGIS Projection Engine 8.3 Datum transformation methods and appropriate geographic areas.ArcGIS Projection Engine 9.0/9.1 Datum transformation methods and appropriate geographic areas.ArcGIS Projection Engine 9.2 Datum transformation methods and appropriate geographic areas.ArcGIS Projection Engine 9.3/9.3.1 Datum transformation methods and appropriate geographic areas.ArcGIS Projection Engine 10 Datum transformation methods and appropriate geographic areas.ArcGIS Projection Engine 10.1 Datum transformation methods and appropriate geographic areas.ArcGIS Projection Engine 10.3.1 Datum transformation methods and appropriate geographic areas.ArcGIS Projection Engine 10.4 Horizontal and Vertical Datum transformation methods and geographic areas.ArcGIS Projection Engine 10.5 Horizontal and Vertical Datum transformation methods and geographic areas.
ArcGIS 10.6.0 and ArcGIS Pro 2.1 Geographic and Vertical Transformation tables.ArcGIS 10.7.1 and ArcGIS Pro 2.4 Projected Coordinate System Tables.ArcGIS Desktop and Server 10.7.1 / ArcGIS Pro 2.4 Geographic and Vertical Coordinate System Tables.ArcGIS 10.7.1 and ArcGIS Pro 2.4 Geographic and Vertical Transformation Tables.ArcGIS Pro 2.7 Geographic and Vertical Transformation Tables.ArcGIS Pro 2.8 Geographic and Vertical Transformation Tables.ArcGIS 10.8.1 and ArcGIS Pro 2.6 Geographic and Vertical Transformation Tables.ArcGIS Desktop 10.8.2 Geographic and Vertical Transformation Tables.ArcGIS Help: Geographic transformation methods.For example, the transformation listed as NAD_1927_to_NAD_1983_NADCON transforms from NAD 1983 to NAD 1927, as well as from NAD 1927 to NAD 1983. Note:ĭatum transformations work in either direction. ProcedureĬlick a link in the Related Information section to access a list of the geographic (datum) transformation methods available in ArcGIS, and the geographic areas for which these transformations are appropriate for the version of ArcGIS Desktop used. For more information on selecting an appropriate Geographic transformation, refer to ArcGIS Help: Choosing an appropriate transformation. The user must also select an appropriate Geographic (datum) transformation in ArcMap when displaying data that are projected on different datums. It is necessary to specify a geographic (datum) transformation when using the ArcToolbox Project Wizard (ArcGIS version 8.x) or Project tool (ArcGIS versions 9.x, 10.x) to project shapefiles or geodatabase feature classes between different geographic coordinate systems (datums). How To: Select the correct geographic (datum) transformation when projecting between datums Summary