Geodetic Resources


Website: https://arcg.is/05L1D1
Email: NGS.Colorado@gmail.com
 
The Colorado Geodetic Working Group Representatives:

Colorado Geodetic Coordinator – CGC

  • John Hunter – Colorado NGS Geodetic Coordinator (NGS.Colorado@gmail.com)
  • Joey Stone - Denver Water
  • Thomas Breitenauer – City and County of Denver
  • Genie Hays - GIS Colorado
  • Brian Shaw – NGS Geodetic Advisor of the Rocky Mountain Region (brian.shaw@noaa.gov)

 
Colorado State Plane Coordinate System 2022
Colorado has elected to utilize a two-layer system for the new Colorado State Plane Coordinate System of 2022.

  • Layer 1: Single State-Wide (1 Zone)
  • Layer 2: Multiple Low Distortion Projections – LDP’s (currently, 30 to 40 Zones)

For the most current information on Colorado State Plane Coordinate System of 2022 can be found at: https://arcg.is/05L1D1
 
Colorado NGS GPS on Bench Marks
NOAA’s National Geodetic Survey encourages anyone to help with the GPS on Bench Mark (GPS on BMs) effort.  GPS on BM will assist in developing a robust transformation tool to relate the current datums (NAD83 and NAVD88) to the terrestrial reference frames/geopotential datum that will be released in 2022. Below is an outline of the various steps for this effort as well as NGS webinars for each of the three key steps.

RECOVER: Find and Recover Marks (crowd sourcing, anyone can do this)
OBSERVE: Collect minimum of 4 hours of GPS Data (survey grade units only), 2 photos and a brief description
REPORT: Process data through OPUS Share (only takes a few minutes)


Geodetic Resources
Colorado Geodetic Coordination CGC
Website: https://arcg.is/05L1D1 (sections outlined below)

NATRF202
New SPCS 2022
New SPCS 2022 LDP’s
LDP Feedback Survey
Colorado Geodetic Coordination - Presentations and Webinars
Colorado Projection Maps Displays
Projection Files
Articles and Papers from the Geodetic Coordinator
Documents and Letters
NGS Policy and Blueprint


National Geodetic Survey NGS

GPS on BM’s: https://geodesy.noaa.gov/GPSonBM/index.shtml
State Plane Coordinate System: https://geodesy.noaa.gov/SPCS/index.shtml
Opus Projects: https://geodesy.noaa.gov/OPUS-Projects/OpusProjects.shtml
GEOID: https://geodesy.noaa.gov/GEOID/index.shtml
Webinars: https://geodesy.noaa.gov/web/science_edu/webinar_series/