New Datums Are Coming in 2022!

1
New Datums Are Coming in 2022!

• Both a new geometric and a new geopotential
  (vertical) datum will be released in 2022.
• The realization of the new datums will be through
  GNSS receivers.
• NGS will provide the tools to easily transform
  between the new and old datums.

2
How will the new datums affect you?

• The new geometric datum will change latitude,
  longitude, and ellipsoid height by between 1
  and 2 meters.
• The new vertical (geopotential) datum will change
  heights on average 50 cm (20''), with a 1-meter
  (39'') tilt towards the Pacific Northwest.

3
Whats Next for Geodetic Datums?
https//www.youtube.com/playlist?listPLsyDl_aqUTd
FY6eKURmiCBBk-mP4R10Dx
4
New Datums What to do now

• Move to newest realizations.NAD 83(2011) epoch
  2010.00USGG12 (gravimetric geoid) / GEOID12A
  (hybrid geoid)
• Obtain precise ellipsoid heights on NAVD 88 bench
  marks. (OPUS-DB, contact NGS Geodetic
  Advisor)Improves hybrid geoid models and
  provides hard points in new vertical
  datum.Follow new NGS Guidelines when released.
• Move from NGVD 29 to NAVD 88.Understand the
  accuracy of VERTCON in your area.
• Move away from passive marks to GNSS.Especially,
  move away from classical passive control.
• Require/provide complete metadata for all mapping
  contracts.How did they get the
  positions/heights? Document it!

5
New Datums How can you prepare?

• Watch for upcoming NGS status updates via
  conferences, reports, webinars.
• Understand the impact of changing positions and
  heights for your community, company, or agency.
• Were here to help!
• New Datums Webpagehttp//www.geodesy.noaa.gov/da
  tums/newdatums/NewDatums.shtml
• NGS Info Center ngs.InfoCenter_at_noaa.govFind a
  Geodetic Advisorhttp//www.geodesy.noaa.gov/ADVI
  SORS/AdvisorsIndex.shtmlGeometric Datum
  ManagerJoe Evjen Joe.Evjen_at_noaa.gov
  Geopotential Datum ManagerDr. Dru Smith
  Dru.Smith_at_noaa.gov

6
2015 Geospatial Summit

• Planning to host from April 13-14, 2015, in the
  Washington, DC Area
• To be held as part of a broader conference of
  conferences with National Society of
  Professional Surveyors and Management Association
  for Private Photogrammetric Surveyors (MAPPS)
• Follows the successful 2010 Geospatial Summit.
  More info at the 2015 Geospatial Summit website
• http//www.geodesy.noaa.gov/2015GeospatialSummit/