Towards worldwide height system unification using ocean information
Abstract We describe the application of ocean levelling to worldwide height system unification. The study involves a comparison of ‘geodetic’ and ‘ocean’ approaches to determination of the mean dynamic topography (MDT) at the coast, from which confidence in the accuracy of stateof- the-art ocean and...
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Walter de Gruyter GmbH
2012
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crdegruyter:10.2478/v10156-012-0004-8 2024-06-23T07:55:07+00:00 Towards worldwide height system unification using ocean information Woodworth, P.L. Hughes, C.W. Bingham, R.J. Gruber, T. 2012 http://dx.doi.org/10.2478/v10156-012-0004-8 https://www.degruyter.com/view/journals/jogs/2/4/article-p302.xml https://www.degruyter.com/downloadpdf/journals/jogs/2/4/article-p302.xml unknown Walter de Gruyter GmbH Journal of Geodetic Science volume 2, issue 4, page 302-318 ISSN 2081-9943 journal-article 2012 crdegruyter https://doi.org/10.2478/v10156-012-0004-8 2024-06-04T05:49:14Z Abstract We describe the application of ocean levelling to worldwide height system unification. The study involves a comparison of ‘geodetic’ and ‘ocean’ approaches to determination of the mean dynamic topography (MDT) at the coast, from which confidence in the accuracy of stateof- the-art ocean and geoid models can be obtained. We conclude that models are consistent at the sub-decimetre level for the regions that we have studied (North Atlantic coastlines and islands, North American Pacific coast and Mediterranean). That level of consistency provides an estimate of the accuracy of using the ocean models to provide an MDT correction to the national datums of countries with coastlines, and thereby of achieving unification. It also provides a validation of geoid model accuracy for application to height system unification in general. We show how our methods can be applied worldwide, as long as the necessary data sets are available, and explain why such an extension of the present study is necessary if worldwide height system unification is to be realised. Article in Journal/Newspaper North Atlantic De Gruyter Pacific Journal of Geodetic Science 2 4 302 318 |
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De Gruyter |
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description |
Abstract We describe the application of ocean levelling to worldwide height system unification. The study involves a comparison of ‘geodetic’ and ‘ocean’ approaches to determination of the mean dynamic topography (MDT) at the coast, from which confidence in the accuracy of stateof- the-art ocean and geoid models can be obtained. We conclude that models are consistent at the sub-decimetre level for the regions that we have studied (North Atlantic coastlines and islands, North American Pacific coast and Mediterranean). That level of consistency provides an estimate of the accuracy of using the ocean models to provide an MDT correction to the national datums of countries with coastlines, and thereby of achieving unification. It also provides a validation of geoid model accuracy for application to height system unification in general. We show how our methods can be applied worldwide, as long as the necessary data sets are available, and explain why such an extension of the present study is necessary if worldwide height system unification is to be realised. |
format |
Article in Journal/Newspaper |
author |
Woodworth, P.L. Hughes, C.W. Bingham, R.J. Gruber, T. |
spellingShingle |
Woodworth, P.L. Hughes, C.W. Bingham, R.J. Gruber, T. Towards worldwide height system unification using ocean information |
author_facet |
Woodworth, P.L. Hughes, C.W. Bingham, R.J. Gruber, T. |
author_sort |
Woodworth, P.L. |
title |
Towards worldwide height system unification using ocean information |
title_short |
Towards worldwide height system unification using ocean information |
title_full |
Towards worldwide height system unification using ocean information |
title_fullStr |
Towards worldwide height system unification using ocean information |
title_full_unstemmed |
Towards worldwide height system unification using ocean information |
title_sort |
towards worldwide height system unification using ocean information |
publisher |
Walter de Gruyter GmbH |
publishDate |
2012 |
url |
http://dx.doi.org/10.2478/v10156-012-0004-8 https://www.degruyter.com/view/journals/jogs/2/4/article-p302.xml https://www.degruyter.com/downloadpdf/journals/jogs/2/4/article-p302.xml |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Geodetic Science volume 2, issue 4, page 302-318 ISSN 2081-9943 |
op_doi |
https://doi.org/10.2478/v10156-012-0004-8 |
container_title |
Journal of Geodetic Science |
container_volume |
2 |
container_issue |
4 |
container_start_page |
302 |
op_container_end_page |
318 |
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1802647557679087616 |