A new pair of geodetic datums are set to be produced by NOAA’s National Geodetic Survey (NGS). These datums will modernize the National Spatial Reference System (NSRS) by replacing the North American Datum of 1983 (NAD 83) and the North American Vertical Datum of 1988 (NAVD 88). This will impact all Federal geospatial programs, including the National Flood Insurance Program (NFIP) managed by FEMA.
Jeff Jalbrzikowski, P.S., GISP, CFS, is the Appalachian Regional Geodetic Advisor with the National Geodetic Survey (NGS). His role as Regional Advisor is to assist the public in utilizing the National Spatial Reference System (NSRS), and any other products and services that NGS provides.
Pam Broviak, P.E., is a civil engineer with FEMA Region V. Her role as a regional engineer is to support and monitor the Region’s floodplain mapping projects, particularly in Ohio and Minnesota. Broviak also currently serves as the point of contact for FEMA Region V’s building science program.
Join us for a discussion of the various types of vertical datums of the National Spatial Reference System (NSRS), targeted for the floodplain manager, GIS professional, and engineer. We will review NGS’s ties to FEMA’s NFIP, datum terminology, some technical history, datum transformations (aka ‘conversions’), plus the forthcoming new vertical datum (NAPGD2022) that will replace NAVD 88. A representative from FEMA will conclude with a discussion of how this new datum will impact BFEs and FIRMs.
Presenters:
- Alan Lulloff, P.E., CFM - ASFPM Flood Science Center
- Jeff Jalbrzikowski, P.S., GISP, CFS - National Geodetic Survey
- Pam Broviak, P.E. - FEMA Region V
Agenda:
- Webinar Logistics - Jason Hochschild, ASFPM Flood Science Center
- Introduction - Alan Lulloff
- New Datums for the Nation - Jeff Jalbrzikowski
- Vertical Datums of the NSRS
- The North American-Pacific Geopotential Datum of 2022 (NAPGD2022)
- Tools Available to Transform Between Datums
- Impact of the new datum on FEMA BFEs and FIRMs - Pam Broviak
- Questions/Discussion
Slides: New Datums for the Nation
Recording: New Datums for the Nation
Q & A: New Datums for the Nation
Note: Viewing the recording of this webinar is not eligible for CECs.
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