2024 Recorded Webinars
2-3:00 pm
ET
Evaluating Noise in GNSS Time Series
Presenter: Jordan Krcmaric, Geodesist, Geosciences Research Division, NGS
Station velocity estimates from GNSS time series are the backbone of defining stable reference frames for high precision positioning. This webinar will provide an overview of the types of noise present in GNSS coordinate time series, its effect on station velocity estimation, and potential sources of noise.
>> Learn more about this webinar.
64
Min
49.5
MB
2-3:30 pm
ET
Introduction to Geodetic-Grade Braced Monuments for Continuously Operating Reference Stations
Presenter: John Galetzka, CORS Branch Chief, Geodetic Infrastructure Branch, National Geodetic Survey
A well designed monument allows NGS geodesists to better monitor stability and calculate a high precision position and velocity for a GNSS Continuously Operating Reference Station. This webinar will elaborate on the several varieties of geodetic-grade braced monuments.
>> Learn more about this webinar.
84
Min
11.1
MB
2-3 pm
ET
How Do Absolute Gravity Meters Work, and How Do We Know They Work?
Presenter: Derek van Westrum, Physicist, Spatial Reference Systems Division, National Geodetic Survey
How NGS uses Absolute Gravity Meters, and how we officially assess their accuracy.
>> Learn more about this webinar.
60
Min
13.01
MB
2-3 pm
ET
"Tying" It All Togetther: NGS Field Operations
Presenter: Ryan Hippenstiel, Field Operations Branch Chief, National Geodetic Survey
NGS Field Operations support a variety of internal and external projects and partners by completing geodetic observations across the nation. This webinar will provide an overview of current capabilities and ongoing projects that support the development and maintenance of the National Spatial Reference System, including a deeper look at survey locations where multiple space geodetic techniques co-exist.
>> Learn more about this webinar.
60
Min
7.8
MB
2-3 pm
ET
Progress Toward a Modernized NSRS
Presenters: Dr. Dru Smith, NSRS Modernization Manager, National Geodetic Survey.
This talk will outline where NGS is in the process of modernizing the National Spatial Reference System, and the sunsetting of NAD 83 and NAVD 88.
>> Learn more about this webinar.
60
Min
7.2
MB
2-3 pm
ET
NOAA’s SatBathy Tool for Automating Satellite Derived Bathymetry
Presenters: Gretchen Imahori, Management and Program Analyst, Remote Sensing Division; Bryan Eder, Marine GIS Analyst, National Centers for Coastal Ocean Science (NCCOS); LT Matt Sharr, NOAA Corps Officer, Remote Sensing Division
The NOAA (beta) SatBathy tool helps automate the creation of Satellite Derived Bathymetry (SDB) products. The current use is for reconnaissance for hydrographic surveys but once completed will help update the NOAA National Bathymetric Source (NBS) to update NOAA Charts and other shallow bathymetric needs. Today’s seminar will discuss the SatBathy tool, short- and long-term plans and some of the on-going research to help support its evolution.
>> Learn more about this webinar.
60
Min
9.2
MB
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