Be Part of the 2018 Geodetic Survey! Submissions Due 8/31!

The National Geodetic Survey needs your help with GEOID18 in West Virginia. To improve the accuracy and geographic coverage of GEOID18 and the transformation tool to transform data to NAPGD2022, users are encouraged to collect GPS data on leveled bench marks (GPS on BM) and submit the data to NGS by August 31, 2018.

Are you currently working in or have static data on any of these locations?
HX2015 <https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=HX2015>  – last recovery 2012 by geocachers, would fill in gap in 30km buffer from existing GPSonBM observations and aid in deciphering gravity anomaly – would need 2 sessions of 4+ hours

HX0853 <https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=HX0853>  –  last recovery 2010 by geocachers, would fill in gap in 30km buffer from existing GPSonBM observations and aid in deciphering gravity anomaly – would need 2 sessions of 4+ hours

GX1681 <https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=GX1681>  –  last recovery 2008 by John Chance Inc, is an existing leveled/GPS station but something is all messed up with it’s ortho height as can be read in recovery.

JX0446 <https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=JX0446>  –  last recovery 2008 by John Chance Inc, would fill in gap in 30km buffer from existing GPSonBM observations – would need 2 sessions of 4+ hours

HX0216 <https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=HX0216>  –  last recovery 2010 by geocachers, would fill in gap in 30km buffer from existing GPSonBM observations – would need 2 sessions of 4+ hours – set in outcrop along roadside, photos in IDB

HX1463 <https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=HX1463>  – not recovered since set in 1933, would fill in gap in 30km buffer from existing GPSonBM observations – would need 2 sessions of 4+ hours

If you are interested in sharing data on any of these locations, please contact Stephen.a.Caldwell@usace.army.mil by August 31.
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