March 2-3 and 9th, 2010
Geodetic and Tidal Vertical Datums
This series of webinars is designed to provide an understanding of the relationship between tidal datums, the North American Vertical Datum of 1988 (NAVD88) and the National Geodetic Vertical Datum of 1929 (NGVD29). Topics include: Definitions of NAVD 88, NGVD 29 and the various tidal datums, tidal datum computation methods, improvement of the vertical component from GPS observations, interpolation between National Ocean Service (NOS) tidal stations, collecting tidal data relative to a local suite of bench marks, and the relationship to the latest national tidal datum epoch. Please click here for FAQs about these webinars.
Tuesday, March 2, 1-4pm ET: Introduction to Geodetic Vertical Datums. The North American Vertical Datum of 1988 (NAVD88) and the National Geodetic Vertical Datum of 1929 (NGVD29), and their relation to tidal datums. This talk will also cover topics such as the National Spatial Reference System, types of heights, the Geoid model, gravity data and CORS and OPUS. Instructor: Dave Doyle
- Access Powerpoint Presentation
- Access Audio (mp3 file)
To download the .mp4 file, click here.
- Access Presentation with Audio (.wmv file) (Requires Windows Media 9.0 or higher) Note: the first 4 slides were not captured in this video. However, they can be viewed in the Gulf Coast video, below. Also, if you are having trouble viewing this presentation, you may need to download a codec, available by clicking here.
- Access Powerpoint Presentation
Wednesday, March 3, 3:00-5:00pm ET: Introduction to Tidal Datums, Gulf Coast-focused presentation of tidal datums, interpolation between National Ocean Service (NOS) tidal stations, collecting tidal data relative to a local suite of bench marks, and the relationship to the latest national tidal datum epoch. Will also include datum computation. Instructors: Gerald Hovis and Cristina Urizar
- Access Presentation with Audio (.wmv file) (Requires Windows Media 9.0 or higher) Note: if you are having trouble viewing this presentation, you may need to download a codec, available by clicking here.
- Access Powerpoint Presentation
Tuesday, March 9, 3:00-5:00pm ET: Introduction to Tidal Datums, West Coast/Alaska-focused presentation of tidal datums, interpolation between National Ocean Service (NOS) tidal stations, collecting tidal data relative to a local suite of bench marks, and the relationship to the latest national tidal datum epoch. Will also include datum computation. Instructors: Gerald Hovis and Cristina Urizar
- Access Presentation with Audio (.wmv file) (Requires Windows Media 9.0 or higher) Note: if you are having trouble viewing this presentation, you may need to download a codec, available by clicking here.
- Access Powerpoint Presentation
Webinar System Requirements:
PC-based attendees Required: Windows® 2000, XP Home, XP Pro, 2003 Server, Vista
Macintosh®-based attendees Required: Mac OS® X 10.4 (Tiger®) or newer
You will be connected to audio using your computer’s microphone and speakers (VoIP). A headset is recommended.
If you cannot receive audio through your computer, you can call in:
phone number: 877-988-6989
passcode: 1680881
