2022 Datum

APLS is actively engaged in the effort to prepare for the new national datums planned for release in 2022. Below is information to keep you updated on progress.

State Plane Coordinate System - Low Distortion Design

APLS is actively engaged in the effort to prepare for the new national datums planned for release in 2022.  Part of this preparation is a redesign of State Plane Coordinate System (SPCS) zones.  APLS is now accepting contributions to purchase an annual lease of Low Distortion Projection (LDP) Design Software (estimated at $5000).  The software will allow APLS members Brian Fisher, and Jack Avis to design SPCS zones that are optimized for Arizona communities.  Brian and Jack are also the co-chairs of the Arizona Geographic Information Council (AGIC) SPCS 2022 Work Group organized to lead this effort. Raising the funds is critical to leasing the software necessary to do this valuable work. Unfortunately, NGS is not providing the software. APLS is counting on your support.

or mail a check payable to APLS to:

APLS Executive Office
526 South E Street
Santa Rosa, CA 95404

Click the links below for more information:

For national information on New Datums in 2022, https://geodesy.noaa.gov/datums/newdatums/index.shtml

For national information specific to SPCS 2022, https://geodesy.noaa.gov/SPCS/policy.shtml

For Arizona specific 2022 Datum & SPCS information email Brian Fisher at GeodesyArizona@gmail.com

Click the links below to download APLS / AGIC Letters to NGS

APLS/AGIC Letter - US Survey Foot (November 2019)

APLS/AGIC Letter - Policy & Procedure Document Comments (August 2018)

APLS Seminar Information

APLS Summer Seminar featured speaker Michael Dennis, Ph.D., PLS. Michael provided informaiton regarding the 2022 Datum and the US Survey Foot.

Click here to download handouts

Click here to download presentation


Click the links below to access NOAA Technical Reports

https://tinyurl.com/rn49d28

https://tinyurl.com/stbo7vk

https://tinyurl.com/wqb6vsg