Sea surface height observations of the 34oN ‘waveguide’ in the North Atlantic
We present a study of the energetic zonal band at 34oN i the North Atlantic using a wavelet analysis of more than 8 years of TOPEX/POSEIDON altimeter data. It is already well-established in the literature that this zonal ‘waveguide ’ is dominated by large-scale propagating features. The wavelet anal...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.659.4549 2023-05-15T17:28:21+02:00 Sea surface height observations of the 34oN ‘waveguide’ in the North Atlantic David Cromwell The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.659.4549 http://eprints.soton.ac.uk/202/1/Cromwell.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.659.4549 http://eprints.soton.ac.uk/202/1/Cromwell.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://eprints.soton.ac.uk/202/1/Cromwell.pdf text ftciteseerx 2016-01-08T16:46:12Z We present a study of the energetic zonal band at 34oN i the North Atlantic using a wavelet analysis of more than 8 years of TOPEX/POSEIDON altimeter data. It is already well-established in the literature that this zonal ‘waveguide ’ is dominated by large-scale propagating features. The wavelet analysis yields sea surface height variance at a range of periods and wavelengths, allowing us to observe and quantify evolution of the features in space and time. Signal variance west of the mid-Atlantic ridge at 34oN is larger than to the east of the ridge: by a factor of ~2 in the period band 0.5-0.9 years, in which baroclinic Rossby waves and eddies propagate. The period of the peak energy is reduced crossing the ridge from ~1 year to ~7-9 months, before rising again to the annual cycle on the other side. There is also evidence of energy peaks at periods of ~2-4 years in the Gulf Stream region and east of the ridge. SSH observations of the 34oN ‘waveguide ’ in the North Atlantic 2 Text North Atlantic Unknown Mid-Atlantic Ridge |
institution |
Open Polar |
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Unknown |
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ftciteseerx |
language |
English |
description |
We present a study of the energetic zonal band at 34oN i the North Atlantic using a wavelet analysis of more than 8 years of TOPEX/POSEIDON altimeter data. It is already well-established in the literature that this zonal ‘waveguide ’ is dominated by large-scale propagating features. The wavelet analysis yields sea surface height variance at a range of periods and wavelengths, allowing us to observe and quantify evolution of the features in space and time. Signal variance west of the mid-Atlantic ridge at 34oN is larger than to the east of the ridge: by a factor of ~2 in the period band 0.5-0.9 years, in which baroclinic Rossby waves and eddies propagate. The period of the peak energy is reduced crossing the ridge from ~1 year to ~7-9 months, before rising again to the annual cycle on the other side. There is also evidence of energy peaks at periods of ~2-4 years in the Gulf Stream region and east of the ridge. SSH observations of the 34oN ‘waveguide ’ in the North Atlantic 2 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
David Cromwell |
spellingShingle |
David Cromwell Sea surface height observations of the 34oN ‘waveguide’ in the North Atlantic |
author_facet |
David Cromwell |
author_sort |
David Cromwell |
title |
Sea surface height observations of the 34oN ‘waveguide’ in the North Atlantic |
title_short |
Sea surface height observations of the 34oN ‘waveguide’ in the North Atlantic |
title_full |
Sea surface height observations of the 34oN ‘waveguide’ in the North Atlantic |
title_fullStr |
Sea surface height observations of the 34oN ‘waveguide’ in the North Atlantic |
title_full_unstemmed |
Sea surface height observations of the 34oN ‘waveguide’ in the North Atlantic |
title_sort |
sea surface height observations of the 34on ‘waveguide’ in the north atlantic |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.659.4549 http://eprints.soton.ac.uk/202/1/Cromwell.pdf |
geographic |
Mid-Atlantic Ridge |
geographic_facet |
Mid-Atlantic Ridge |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://eprints.soton.ac.uk/202/1/Cromwell.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.659.4549 http://eprints.soton.ac.uk/202/1/Cromwell.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766120987464564736 |