Spatial -

NOAA Datums Videos 2014

Differential correction with NA2011 and the newest epoch of NAD83

See our and Datums Basics and GPS Tutorials for the long-awaited results of months of rigorous testing and peer review

Trimble Positions software has replaced Trimble GPS Analyst in ArcGIS 10.1

ALASKA GPS and GIS users - check out Joel Cusick's Datum and Projections presentation Feb 2013

ArcGIS 10.1 - New and Cool improvements see Presentation from Melita Kennedy, ESRI : Projections and Datums Dec 2012

Home Datums Basics NA2011 - Passive Monument changes
NA2011 - Passive Monument changes PDF Print E-mail

The following images, courtesy of Michael Dennis, NGS show the gridded coordinate differences for passive marks between NAD83(2011) epoch 2010.0 and NAD83(NSRS2007