GPS on Bench Marks: 2022 Transformation Tool Campaign Update

February 13, 2020  |  2-3 pm, Eastern Time

Galen Scott, National Geodetic Survey

This webinar will provide an update on the GPSonBM program, including progress on the 2022 Transformation Tool Campaign and upgrades to the web map application and the underlying priority mark algorithm, as well as a new and exciting online Mark Recovery Form.

As part of modernizing the National Spatial Reference System, NGS will produce the 2022 Transformation Tool, which will enable mapping grade conversions from current vertical datums to the North American-Pacific Geopotential Datum of 2022 (NAPGD2022) and will be integrated into the NGS Coordinate Conversion and Transformation Tool (NCAT). Users are encouraged to submit GPS data on existing bench marks to improve the quality of the transformation in their local areas.

In 2019, NGS released a new prioritized list of bench marks across the United States and its Territories to direct local users to the marks in their area where new GPS observations would have the biggest impact on the quality of the tool. A web map is also available that enables users to explore, sort, and download the coordinates on the list.

Technical Content Rating: Intermediate - Some prior knowledge of this topic is helpful.