2019 Recorded Webinars
2-3 pm
eastern time
Putting the Best “Foot” Forward: Ending the Era of the U.S. Survey Foot
Dr. Michael Dennis, National Geodetic Survey
The 60+ years of simultaneously using both the U.S. survey and international foot will end after 2022, at which time the only definition recognized will be 1 foot = 0.3048 meter exactly. Although this definition is used for the international foot, after 2022 it will simply be called the “foot.” This webinar describes the upcoming change and shows how modernizing the National Spatial Reference System will make using the singular definition as simple and painless as possible.
75Min
13.5 MB
2-3 pm
eastern time
Geoid Change in Alaska
Dr. Ryan Hardy, National Geodetic Survey
NGS's future geopotential datum requires a dynamic geoid model for determining centimeter-accuracy heights. Geoid change in Alaska is rapid and challenging to model. This webinar introduces modeling present-day geoid change in Alaska, and discusses how the geoid has changed through the 20th century.
41Min
24.6 MB
2-3 pm
eastern time
Be a Part of the Change: A Guide to Customizing State Plane for 2022
Dr. Michael Dennis, National Geodetic Survey
We hope you already know about the State Plane Coordinate System of 2022 (SPCS2022). But you may not know how (or whether) you can provide input on the design of SPCS2022 zones. If you want to be a part of the change in SPCS2022, then this webinar will provide useful information—even if you are already acquainted with the request, proposal, and design submittal process.
86Min
64.8 MB
2-3 pm
eastern time
The NGS Geoid Monitoring Service (GeMS)
Dr. Kevin Ahlgren, National Geodetic Survey
The Geoid Monitoring Service is an NGS project tasked with recommending and building time-dependent quantities associated with geoid undulations, surface gravity, deflections of the vertical, geopotential numbers, and a digital elevation model. The first phase of this project is reaching completion, and users of the National Spatial Reference System (NSRS) will begin to see these attributes in NGS products and tools.
55Min
15.2 MB
2-4 pm
eastern time
Blueprint for 2022, Part III: Working in the Modernized NSRS
Dr. Dru Smith, National Geodetic Survey
In 2022, the National Spatial Reference System willbe modernized. This presentation addresses how geospatial professionals can expect to work within the newly modernized NSRS.
150Min
5.9 MB
2-3pm
eastern time
GPS on Bench Marks: 2022 Transformation Tool Campaign
Galen Scott, National Geodetic Survey
NGS will produce a transformation tool to provide a mapping-grade transformation between the current and new datums in 2022. NGS has released a new prioritized list of bench marks to direct local users to the marks where new GPS observations would have the biggest impact on the quality of the tool. The prioritized list can be viewed through a new, interactive GPSonBM web map.
57Min
118.7 MB
2-3pm
eastern time
Fate of the U.S. Survey Foot after 2022: A Conversation with NGS
Michael Dennis, PE, LS, National Geodetic Survey
Since 1959, the U.S. has used two types of feet, the “international foot” and the “U.S. survey foot.” They differ by only 0.01 foot per mile, but having both in use creates problems with real costs.This webinar discusses the history of the foot, the importance of standards, and shows how NGS can help move the U.S. to a single foot definition in 2022.
51Min
11.6 MB
2-3pm
eastern time
Shoreline Mapping Data and Products
Tim Blackford, National Geodetic Survey
The NGS Coastal Mapping Program produces the national shoreline and other critical data used to update the NOAA nautical charts. The data is also used by coastal resource managers and others for GIS analysis, coastal modeling, and as the baseline for defining U.S. territorial limits. This webinar will provide an overview of how the NGS Remote Sensing Division collects, processes, and delivers shoreline mapping data and products.
54Min
20.7 MB
2-3pm
eastern time
State Plane Coordinate System Update
Michael Dennis, PE, LS, National Geodetic Survey
NGS will establish the State Plane Coordinate System of 2022 (SPCS2022) as part of modernizing the National Spatial Reference System. NGS invited written comments on the draft SPCS2022 policy and procedures. In this webinar, we will share the feedback it received on SPCS2022 and the final SPCS2022 Policy and Procedures.
57Min
81.3 MB
2-3pm
eastern time
GEOID18 Improvements and a Look Ahead
Dr. Kevin Ahlgren and Galen Scott, National Geodetic Survey
This webinar provides an overview of the 2018 GPSonBM campaign and how these new observations improved GEOID18. We will also look ahead to the 2019 GPSonBM campaign, review the new priority list, and discuss the many different ways that sharing GPSonBM data will improve NGS models and tools.
57Min
31.7 MB
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