Towards worldwide height system unification using ocean information
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 mo...
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2012
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ftdoajarticles:oai:doaj.org/article:e19c9bf12da1473c8cc0cbc2b5514608 2023-05-15T17:33:12+02:00 Towards worldwide height system unification using ocean information Woodworth P.L. Hughes C.W. Bingham R.J. Gruber T. 2012-12-01T00:00:00Z https://doi.org/10.2478/v10156-012-0004-8 https://doaj.org/article/e19c9bf12da1473c8cc0cbc2b5514608 EN eng De Gruyter https://doi.org/10.2478/v10156-012-0004-8 https://doaj.org/toc/2081-9943 2081-9943 doi:10.2478/v10156-012-0004-8 https://doaj.org/article/e19c9bf12da1473c8cc0cbc2b5514608 Journal of Geodetic Science, Vol 2, Iss 4, Pp 302-318 (2012) mean dynamic topography national datums ocean and geoid models ocean levelling Geodesy QB275-343 article 2012 ftdoajarticles https://doi.org/10.2478/v10156-012-0004-8 2022-12-30T20:07:30Z 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 Directory of Open Access Journals: DOAJ Articles Pacific Journal of Geodetic Science 2 4 302 318 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
mean dynamic topography national datums ocean and geoid models ocean levelling Geodesy QB275-343 |
spellingShingle |
mean dynamic topography national datums ocean and geoid models ocean levelling Geodesy QB275-343 Woodworth P.L. Hughes C.W. Bingham R.J. Gruber T. Towards worldwide height system unification using ocean information |
topic_facet |
mean dynamic topography national datums ocean and geoid models ocean levelling Geodesy QB275-343 |
description |
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. |
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 |
De Gruyter |
publishDate |
2012 |
url |
https://doi.org/10.2478/v10156-012-0004-8 https://doaj.org/article/e19c9bf12da1473c8cc0cbc2b5514608 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Geodetic Science, Vol 2, Iss 4, Pp 302-318 (2012) |
op_relation |
https://doi.org/10.2478/v10156-012-0004-8 https://doaj.org/toc/2081-9943 2081-9943 doi:10.2478/v10156-012-0004-8 https://doaj.org/article/e19c9bf12da1473c8cc0cbc2b5514608 |
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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1766131635669958656 |