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| Titel |
The Continuous Vertical Datum for Canadian Waters Project: Status report and update |
| VerfasserIn |
Catherine Robin, Shannon Nudds, Phillip MacAulay, André Godin, Bodo de Lange Boom, Jason Bartlett, Louis Maltais, Terese Herron, Michael Craymer, Marc Véronneau, Denis Hains, Kian Fadaie |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250099828
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| Publikation (Nr.) |
 EGU/EGU2014-15661.pdf |
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| Zusammenfassung |
| Canadian Hydrographic Service (CHS) has developed the Continuous Vertical Datum for
Canadian Waters (CVDCW) project in collaboration with Canadian Geodetic Survey
(CGS). The goal of the CVDCW is to develop a surface connecting chart datum
(CD) to a national geodetic reference frame which captures the relevant spatial
variability as modeled by integrating ocean models, water levels, GPS observations, sea
level trends, satellite altimetry, and a geoid model. The CVDCW’s CD surface
will define a new hydrographic datum for Canada; other CVDCW surfaces (e.g.
low water, high water) will provide fundamental information for coastal studies,
climate change adaptation, and the definition of the Canadian shoreline and offshore
boundaries.
The team has developed a national approach which is flexible enough to adapt to regional
differences and permits the integration of new input data and methods as they become
available. Given the length of the Canadian shoreline and the large-scale approach of the
CVDCW, many aspects of our method are innovative and have not, to our knowledge, been
used by other hydrographic organizations.
A version of the CVDCW is available for the Arctic and Hudson Bay, and the
CVDCW will soon be completed for other regions. Realizations of the CVDCW are
expected to evolve quickly in the next few years, as a series of prototypes are validated
against new GPS and gauge observations and tested in the reduction of soundings. |
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