Height Modernization Western States Regional Webinar
Tuesday, November 19, 2013
10:00am PT - 2:00pm PT (1:00 – 5:00 pm ET)
This webinar covered the following topics:
- basic information about the National Geodetic Survey’s National Height Modernization Program, and supporting services such as OPUS
- future plans for a new national vertical datum,
- the type of data we need today and how you can collect it,
- how federal and state organizations are implementing Height Modernization, and
- elevation related challenges you might face if you work in the western United States.
Background:
- Height Modernization is an initiative focused on establishing accurate, reliable heights using Global Navigation Satellite System (GNSS) technology in conjunction with traditional leveling, gravity, and modern remote sensing information.
- Elevation (orthometric height) information contributes to informed decision making and impacts a wide range of important activities including mapping and charting, flood risk determination, transportation infrastructure, land use and ecosystem management.
Meeting materials:
Agenda
Please note these are Pacific Times.
Click on presentation title to download the PowerPoint slides.
10:00 - 10:05 PT, Introductory Remarks, Juliana Blackwell, Director, NGS 10:05 - 10:15 PT, Overview of Height Modernization, Christine Gallagher, Program Analyst, NGS
- History of Height Modernization
- Height Modernization as we prepare for a new vertical datum
10:15 - 10:30 PT, Height Modernization in Wisconsin and the Great Lakes Region, Diane Arendt, Geodesist, Wisconsin Department of Transportation
- Chair of Great Lakes Regional Height Modernization Consortium
- Registered Land Surveyor in the state of Wisconsin
10:30 - 10:45 PT, Planning for the next vertical datum, Mark Eckl, Observations and Analysis Division Chief, NGS
- Implementation Plan to Replace NAVD 88
- GRAV-D data and product releases
- NGS Geoid models
10:45 - 11:00 PT, Leveraging height information from the public, Dru Smith, Chief Geodesist, NGS
- Major steps to the new vertical datum
- Progress to date
- Future help from the public
11:00 - 11:05 PT, break 11:05 - 11:50 PT, “Height Mod” Surveys, Michael Dennis, Geodesist, NGS
- Overview of survey planning (NGS 58 and NGS 59)
- Bluebooking and Adjust
- Where we are going (testing to update NGS 58 and NGS 59)
- GIS tools
11:50 - 12:05 PT, Tools to help complete “Height Mod” Surveys, Joe Evjen, Geodesist, NGS
12:05 - 12:40 PT, Lunch break 12:40 - 12:55, Height Modernization and United States Geological Survey (USGS), Paul Rydlund, Hydrologist, USGS Missouri Water Science Center
- Applications to stream gages and USGS hydrologists
- Coordination with US Army Corp and others
12:55 - 1:10 PT, Height Modernization and State Partners, Eugene Trobia, Arizona State Cartographer 1:10 - 1:25 PT, Height issues in western states, Pam Fromhertz, Colorado Geodetic Advisor
- Lack/Destruction of NAVD 88 bench marks
- Analysis of Heights in CO
- Vertical land motion
1:25 - 1:30 PT, Concluding remarks, Christine Gallagher, Program Analyst, NGS
1:30 - 2:00 PT, OPUS-DB demonstration, Mark Armstrong, Oregon Geodetic Advisor
- Live Demo - NGS Data Explorer (Find a bench mark to observe)
- Field procedures and requirements to Publish your OPUS solution
- Live Demo - OPUS Publishing (Sharing your solution with the public)
- The OPUS datasheet
For more information, please contact: ngs.htmod@noaa.gov
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