RESOURCES FOR PRACTITIONERS

Eye glasses sitting on a notebook in front of an open laptop.

tsrc resources

  • Guidance Library - Browse TSRC’s library of practical guidance.

  • TSRC Presentations & Webinars - Recordings and slides from TSRC's presentations will be posted here as they become available.

  • Texas State Plane Coordinate System of 2022 - Download the Final Texas SPCS2022 zone files. (Coming Soon!)

  • Stay Updated - Want to know as soon as new resources are posted? Join TSRC's email mailing list on the Contact TSRC page.

ngs tools & resources

GPS processing

  • OPUS - Process GPS observations and tie them to the National Spatial Reference System.

  • OPUS Projects - Manage and process survey projects involving multiple sites and occupations. Note: All OPUS Projects and differential leveling submissions for creating or updating geodetic control within the current NSRS must be submitted to NGS by January 13, 2027.

  • OPUS Share - Contribute to and access shared OPUS solutions.

coordinate & datum conversions

  • NCAT - Convert and transform coordinates between reference frames and coordinate systems in a single step

  • VDatum - Convert elevation data among vertical datums.

marks & cors data

  • Survey Mark Datasheets - Look up official NGS data for geodetic survey marks, including passive control, tidal bench marks, and leveling network points, with published coordinates, descriptions, and history.

  • NOAA CORS Network (NCN) - Access continuously operating reference station data.

  • Survey Mark Recovery - Report on the condition of existing geodetic survey marks.

education & training

  • NGS Webinars - Access recorded webinar series covering geodesy, GPS/GNSS, and NSRS modernization topics.

  • NGS Presentations - Access slide decks and materials from NGS's conference and training presentations for the most current information.

  • NGS New Datums - NGS's central hub for modernization updates, including "Get Prepared" guidance and the Track Our Progress page you're already linking to on the Modernization page.

modernization beta tools

Finalized, Not Official:

  • NGS Beta Site - NGS's central hub for testing modernized tools and datasets ahead of official release. Worth bookmarking, as new tools are added here as they become available.

  • NAPGD 2022 Interactive Map - Explore the modernized vertical datum and preview geoid model changes across the country.

  • SPCS 2022 Interactive Map - View Texas's approved SPCS2022 zones, including the statewide, five-zone, and LDP layers.

    In BETA 6-month feedback period until at least March 2027:

  • Data Delivery System (DDS) - Explore NGS’s beta Data Delivery System, the interactive replacement for the traditional datasheet. Look up marks and CORS stations with time-dependent coordinates, maps, and metadata all in one place.

  • NCAT Beta - Convert and transform coordinates to and from SPCS2022 ahead of official adoption.

  • OPUS Beta - Try the NGS beta version of OPUS to process your GNSS data in the new NSRS. It’s a great way to get hands-on, and results are for testing while the tool is still in beta.