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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 Difference: WGS84, ITRF08 and IGS08
Difference: WGS84, ITRF08 and IGS08 PDF Print E-mail

Little shift

Recall the equivalencies to various WGS84 and ITRF/IGS reference frames

WGS84 and ITRF/IGS are within mm of each other and remain essentially equivalent even for higher accuracy projects.