NAD83v70VG : a new national crustal velocity model for Canada / C.M.I. Robin, M. Craymer, R. Ferland, T.S. James, E. Lapelle, M. Piraszewski, and Y. Zhao.: M103-3/62-2020E-PDF
"A national-scale crustal velocity model has been developed for Canada as part of the current realisation of NAD83(CSRS), delivered as a set of 3 national grids, for each of the North, East and Up (N, E and U) components. It is used to propagate coordinates to different reference epochs, and to support scientific studies such as natural hazards, climate change, and groundwater change. The previous velocity model was based on continuous and campaign GPS data between 1994 and 2011.3. The new model includes new stations in key areas, six more years of data (to the end of 2017), and newly reprocessed historical data using the latest software and GPS products. We include data from continuous GPS sites in Canada, the northern portions of the US, all of Greenland, and a set of globally distributed sites used to define the reference frame; and from repeated high accuracy campaign surveys in Canada. A new type of model is introduced for the vertical grid. It incorporates GPS observations with the crustal uplift predictions of Glacial Isostatic Adjustment (GIA) and elastic rebound models, which are especially important in areas with sparse coverage. Gridded uncertainty estimates are provided for each component of NAD83v70VG"--Abstract, page 3.
Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.901506&sl=0
| Department/Agency | Geomatics Canada, issuing body. |
|---|---|
| Title | NAD83v70VG : a new national crustal velocity model for Canada / C.M.I. Robin, M. Craymer, R. Ferland, T.S. James, E. Lapelle, M. Piraszewski, and Y. Zhao. |
| Variant title | New national crustal velocity model for Canada |
| Series title | Open file ; 62 |
| Publication type | Series - View Master Record |
| Language | [English] |
| Format | Electronic |
| Electronic document | |
| Note(s) | Includes bibliographical references (pages 40-45). |
| Publishing information | Ottawa, Ontario : Geomatics Canada, 2020. ©2020 |
| Author / Contributor | Robin, C. M. I., author. |
| Description | 1 online resource (70 pages) : maps, graphs. |
| Catalogue number |
|
| Departmental catalogue number | 327592 |
| Subject terms | Geodesy -- Canada. Global Positioning System. Geographic information systems -- Canada. Géodésie -- Canada. GPS. Systèmes d'information géographique -- Canada. |
Request alternate formats
To request an alternate format of a publication, complete the Government of Canada Publications email form. Use the form’s “question or comment” field to specify the requested publication.- Date modified: