Evaluation of W0 in Canada using tide gauges and GOCE gravity field models
Abstract The existing Canadian Geodetic Vertical Datum of 1928 (CGVD28) does not meet the needs of the modern user in terms of accuracy and accessibility. As a result, Canada plans to implement a geoid-based and global navigation satellite system (GNSS)-accessible vertical datum by 2013. One of the...
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Walter de Gruyter GmbH
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crdegruyter:10.2478/v10156-012-0003-9 2023-05-15T15:09:09+02:00 Evaluation of W0 in Canada using tide gauges and GOCE gravity field models Hayden, T. Rangelova, E. Sideris, M. G. Véronneau, M. 2012 http://dx.doi.org/10.2478/v10156-012-0003-9 https://www.degruyter.com/view/journals/jogs/2/4/article-p290.xml https://www.degruyter.com/downloadpdf/journals/jogs/2/4/article-p290.xml unknown Walter de Gruyter GmbH Journal of Geodetic Science volume 2, issue 4, page 290-301 ISSN 2081-9943 Applied Mathematics Earth and Planetary Sciences (miscellaneous) Computers in Earth Sciences Geophysics Astronomy and Astrophysics journal-article 2012 crdegruyter https://doi.org/10.2478/v10156-012-0003-9 2022-04-14T05:11:03Z Abstract The existing Canadian Geodetic Vertical Datum of 1928 (CGVD28) does not meet the needs of the modern user in terms of accuracy and accessibility. As a result, Canada plans to implement a geoid-based and global navigation satellite system (GNSS)-accessible vertical datum by 2013. One of the primary concerns in realizing this new vertical datum is to determine a W0 value that will represent the potential of the zero height surface. The objective of this study is to evaluate W0 by averaging the potential of points on the mean sea water surface utilizing tide gauge recordings and gravity field and steady-state ocean circulation explorer (GOCE)-based global geopotential models. In order to assess the performance of the GOCE-based models for the computation of W0, the models are extended with the high resolution gravitational model EGM2008 . Regional gravimetric geoid models are also used for the estimation of W0. Additionally, local sea surface topography models are utilized in order to validate the W0 results at the tide gauges. Excluding the Arctic coast, the W0 values obtained from both tide gauges and oceanic sea surface topography models are not statistically different from the International Earth Rotation and Reference Systems Service (IERS) 2010 global conventional value 62636856.00 m 2 /s 2 . Article in Journal/Newspaper Arctic De Gruyter (via Crossref) Arctic Canada Journal of Geodetic Science 2 4 290 301 |
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Open Polar |
collection |
De Gruyter (via Crossref) |
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crdegruyter |
language |
unknown |
topic |
Applied Mathematics Earth and Planetary Sciences (miscellaneous) Computers in Earth Sciences Geophysics Astronomy and Astrophysics |
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Applied Mathematics Earth and Planetary Sciences (miscellaneous) Computers in Earth Sciences Geophysics Astronomy and Astrophysics Hayden, T. Rangelova, E. Sideris, M. G. Véronneau, M. Evaluation of W0 in Canada using tide gauges and GOCE gravity field models |
topic_facet |
Applied Mathematics Earth and Planetary Sciences (miscellaneous) Computers in Earth Sciences Geophysics Astronomy and Astrophysics |
description |
Abstract The existing Canadian Geodetic Vertical Datum of 1928 (CGVD28) does not meet the needs of the modern user in terms of accuracy and accessibility. As a result, Canada plans to implement a geoid-based and global navigation satellite system (GNSS)-accessible vertical datum by 2013. One of the primary concerns in realizing this new vertical datum is to determine a W0 value that will represent the potential of the zero height surface. The objective of this study is to evaluate W0 by averaging the potential of points on the mean sea water surface utilizing tide gauge recordings and gravity field and steady-state ocean circulation explorer (GOCE)-based global geopotential models. In order to assess the performance of the GOCE-based models for the computation of W0, the models are extended with the high resolution gravitational model EGM2008 . Regional gravimetric geoid models are also used for the estimation of W0. Additionally, local sea surface topography models are utilized in order to validate the W0 results at the tide gauges. Excluding the Arctic coast, the W0 values obtained from both tide gauges and oceanic sea surface topography models are not statistically different from the International Earth Rotation and Reference Systems Service (IERS) 2010 global conventional value 62636856.00 m 2 /s 2 . |
format |
Article in Journal/Newspaper |
author |
Hayden, T. Rangelova, E. Sideris, M. G. Véronneau, M. |
author_facet |
Hayden, T. Rangelova, E. Sideris, M. G. Véronneau, M. |
author_sort |
Hayden, T. |
title |
Evaluation of W0 in Canada using tide gauges and GOCE gravity field models |
title_short |
Evaluation of W0 in Canada using tide gauges and GOCE gravity field models |
title_full |
Evaluation of W0 in Canada using tide gauges and GOCE gravity field models |
title_fullStr |
Evaluation of W0 in Canada using tide gauges and GOCE gravity field models |
title_full_unstemmed |
Evaluation of W0 in Canada using tide gauges and GOCE gravity field models |
title_sort |
evaluation of w0 in canada using tide gauges and goce gravity field models |
publisher |
Walter de Gruyter GmbH |
publishDate |
2012 |
url |
http://dx.doi.org/10.2478/v10156-012-0003-9 https://www.degruyter.com/view/journals/jogs/2/4/article-p290.xml https://www.degruyter.com/downloadpdf/journals/jogs/2/4/article-p290.xml |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Journal of Geodetic Science volume 2, issue 4, page 290-301 ISSN 2081-9943 |
op_doi |
https://doi.org/10.2478/v10156-012-0003-9 |
container_title |
Journal of Geodetic Science |
container_volume |
2 |
container_issue |
4 |
container_start_page |
290 |
op_container_end_page |
301 |
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1766340380073132032 |