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NAD83(2011) and Geoid12 announcement
July 2, 2012 3:36 PM

 NOAA's NGS has released the newly-completed National Adjustment of 2011 Project (NA2011), which adjusts approximately 80,000 National Spatial Reference System (NSRS) coordinates. The updated NAD83(2011) epoch 2010.00 coordinates are available on NGS Datasheets.
http://www.ngs.noaa.gov/cgi-bin/datasheet.prl

Geoid12 was released concurrently with NAD83(2011). The new Geoid12 grid files can be downloaded from the NGS Geoid page.
http://www.ngs.noaa.gov/GEOID/GEOID12/

Online Interactive Geoid12 computations are available using the NGS toolkit
http://www.ngs.noaa.gov/cgi-bin/GEOID_STUFF/geoid12_prompt1.prl

By Steven Kaufman
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