https://community.esri.com/t5/geoprocessing-questions/are-projections-ever-updated/m-p/1087740#M25750 <P><A href="https://geodesy.noaa.gov/web/surveys/NA2011/" target="_blank">NA2011 (noaa.gov)</A></P><P>&nbsp;1983 is a datum, 2011 is an adjustment</P> Tue, 10 Aug 2021 23:16:13 GMT DanPatterson 2021-08-10T23:16:13Z https://community.esri.com/t5/geoprocessing-questions/are-projections-ever-updated/m-p/1087726#M25749 <P>Looking at the projection “<SPAN>NAD_1983_2011_California_Teale_Albers” and I wondered if projections are ever updated? What do the dates mean? Google isn’t coming through for me, but I know this community does! <span class="lia-unicode-emoji" title=":grinning_face_with_smiling_eyes:">😄</span></SPAN></P> Tue, 10 Aug 2021 22:47:17 GMT https://community.esri.com/t5/geoprocessing-questions/are-projections-ever-updated/m-p/1087726#M25749 LindseyWinn 2021-08-10T22:47:17Z https://community.esri.com/t5/geoprocessing-questions/are-projections-ever-updated/m-p/1087740#M25750 <P><A href="https://geodesy.noaa.gov/web/surveys/NA2011/" target="_blank">NA2011 (noaa.gov)</A></P><P>&nbsp;1983 is a datum, 2011 is an adjustment</P> Tue, 10 Aug 2021 23:16:13 GMT https://community.esri.com/t5/geoprocessing-questions/are-projections-ever-updated/m-p/1087740#M25750 DanPatterson 2021-08-10T23:16:13Z