Data from: New perspectives on frontal variability in the southern ocean
The frontal structure of the Southern Ocean is investigated using the Wavelet/Higher Order Statistics Enhancement (WHOSE) frontal detection method, introduced in Chapman (2014). This methodology is applied to 21 years of daily gridded absolute dynamic topography (ADT) data to obtain daily maps of th...
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ftdans:oai:easy.dans.knaw.nl:easy-dataset:102292 2023-07-02T03:33:45+02:00 Data from: New perspectives on frontal variability in the southern ocean Chapman, Christopher C. 2017-04-21T21:54:44.000+02:00 http://nbn-resolving.org/urn:nbn:nl:ui:13-p9-nxfe https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:102292 unknown doi:10.5061/dryad.q9k8r/1 doi:10.5061/dryad.q9k8r/2 doi:10.5061/dryad.q9k8r/3 doi:10.5061/dryad.q9k8r/4 doi:10.5061/dryad.q9k8r/5 doi:10.5061/dryad.q9k8r/6 doi:10.5061/dryad.q9k8r/7 doi:10.5061/dryad.q9k8r/8 doi:10.5061/dryad.q9k8r/9 doi:10.5061/dryad.q9k8r/10 doi:10.5061/dryad.q9k8r/11 doi:10.5061/dryad.q9k8r/12 doi:10.5061/dryad.q9k8r/13 doi:10.5061/dryad.q9k8r/14 doi:10.5061/dryad.q9k8r/15 doi:10.5061/dryad.q9k8r/16 doi:10.5061/dryad.q9k8r/17 doi:10.5061/dryad.q9k8r/18 doi:10.5061/dryad.q9k8r/19 doi:10.5061/dryad.q9k8r/20 doi:10.5061/dryad.q9k8r/21 doi:10.5061/dryad.q9k8r/22 doi:10.1175/JPO-D-16-0222.1 http://nbn-resolving.org/urn:nbn:nl:ui:13-p9-nxfe doi:10.5061/dryad.q9k8r https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:102292 OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf Life sciences medicine and health care 2017 ftdans https://doi.org/10.5061/dryad.q9k8r/110.5061/dryad.q9k8r/210.5061/dryad.q9k8r/310.5061/dryad.q9k8r/410.5061/dryad.q9k8r/510.5061/dryad.q9k8r/610.5061/dryad.q9k8r/710.5061/dryad.q9k8r/810.5061/dryad.q9k8r/910.5061/dryad.q9k8r/1010.5061/dryad.q9k8r/1110.506 2023-06-13T13:28:25Z The frontal structure of the Southern Ocean is investigated using the Wavelet/Higher Order Statistics Enhancement (WHOSE) frontal detection method, introduced in Chapman (2014). This methodology is applied to 21 years of daily gridded absolute dynamic topography (ADT) data to obtain daily maps of the locations of the fronts. By forming frontal occurrence frequency maps and then approximating these occurrence-maps by a superposition of simple functions, the time-mean locations of the fronts, as well as a measure of their capacity to meander, are obtained and related to the frontal locations found by previous studies. The spatial and temporal variability of the frontal structure is then considered. The number of fronts is found to be highly variable throughout the Southern Ocean, increasing (‘splitting’) downstream of large bathymetric features and decreasing (‘merging’) in regions where the fronts are tightly controlled by the underlying topography. These splitting/merging events are related to changes in the underlying frontal structure whereby regions of high frontal occurrence cross or spread over streamfunction contours. In contrast to the number of fronts, frontal meandering remains relatively constant throughout the Southern Ocean. Little to no migration of the fronts over the 1993-2014 time period is found, and there is only weak sensitivity of frontal positions to atmospheric forcing related to the Southern Annular Mode or the El Niño Southern Oscillation. Finally, the implications of these results for the study of cross-stream tracer transport is discussed. Other/Unknown Material Southern Ocean Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) Southern Ocean Geophysical Research Letters 39 16 n/a n/a |
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Open Polar |
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Data Archiving and Networked Services (DANS): EASY (KNAW - Koninklijke Nederlandse Akademie van Wetenschappen) |
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language |
unknown |
topic |
Life sciences medicine and health care |
spellingShingle |
Life sciences medicine and health care Chapman, Christopher C. Data from: New perspectives on frontal variability in the southern ocean |
topic_facet |
Life sciences medicine and health care |
description |
The frontal structure of the Southern Ocean is investigated using the Wavelet/Higher Order Statistics Enhancement (WHOSE) frontal detection method, introduced in Chapman (2014). This methodology is applied to 21 years of daily gridded absolute dynamic topography (ADT) data to obtain daily maps of the locations of the fronts. By forming frontal occurrence frequency maps and then approximating these occurrence-maps by a superposition of simple functions, the time-mean locations of the fronts, as well as a measure of their capacity to meander, are obtained and related to the frontal locations found by previous studies. The spatial and temporal variability of the frontal structure is then considered. The number of fronts is found to be highly variable throughout the Southern Ocean, increasing (‘splitting’) downstream of large bathymetric features and decreasing (‘merging’) in regions where the fronts are tightly controlled by the underlying topography. These splitting/merging events are related to changes in the underlying frontal structure whereby regions of high frontal occurrence cross or spread over streamfunction contours. In contrast to the number of fronts, frontal meandering remains relatively constant throughout the Southern Ocean. Little to no migration of the fronts over the 1993-2014 time period is found, and there is only weak sensitivity of frontal positions to atmospheric forcing related to the Southern Annular Mode or the El Niño Southern Oscillation. Finally, the implications of these results for the study of cross-stream tracer transport is discussed. |
author |
Chapman, Christopher C. |
author_facet |
Chapman, Christopher C. |
author_sort |
Chapman, Christopher C. |
title |
Data from: New perspectives on frontal variability in the southern ocean |
title_short |
Data from: New perspectives on frontal variability in the southern ocean |
title_full |
Data from: New perspectives on frontal variability in the southern ocean |
title_fullStr |
Data from: New perspectives on frontal variability in the southern ocean |
title_full_unstemmed |
Data from: New perspectives on frontal variability in the southern ocean |
title_sort |
data from: new perspectives on frontal variability in the southern ocean |
publishDate |
2017 |
url |
http://nbn-resolving.org/urn:nbn:nl:ui:13-p9-nxfe https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:102292 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
doi:10.5061/dryad.q9k8r/1 doi:10.5061/dryad.q9k8r/2 doi:10.5061/dryad.q9k8r/3 doi:10.5061/dryad.q9k8r/4 doi:10.5061/dryad.q9k8r/5 doi:10.5061/dryad.q9k8r/6 doi:10.5061/dryad.q9k8r/7 doi:10.5061/dryad.q9k8r/8 doi:10.5061/dryad.q9k8r/9 doi:10.5061/dryad.q9k8r/10 doi:10.5061/dryad.q9k8r/11 doi:10.5061/dryad.q9k8r/12 doi:10.5061/dryad.q9k8r/13 doi:10.5061/dryad.q9k8r/14 doi:10.5061/dryad.q9k8r/15 doi:10.5061/dryad.q9k8r/16 doi:10.5061/dryad.q9k8r/17 doi:10.5061/dryad.q9k8r/18 doi:10.5061/dryad.q9k8r/19 doi:10.5061/dryad.q9k8r/20 doi:10.5061/dryad.q9k8r/21 doi:10.5061/dryad.q9k8r/22 doi:10.1175/JPO-D-16-0222.1 http://nbn-resolving.org/urn:nbn:nl:ui:13-p9-nxfe doi:10.5061/dryad.q9k8r https://easy.dans.knaw.nl/ui/datasets/id/easy-dataset:102292 |
op_rights |
OPEN_ACCESS: The data are archived in Easy, they are accessible elsewhere through the DOI https://dans.knaw.nl/en/about/organisation-and-policy/legal-information/DANSLicence.pdf |
op_doi |
https://doi.org/10.5061/dryad.q9k8r/110.5061/dryad.q9k8r/210.5061/dryad.q9k8r/310.5061/dryad.q9k8r/410.5061/dryad.q9k8r/510.5061/dryad.q9k8r/610.5061/dryad.q9k8r/710.5061/dryad.q9k8r/810.5061/dryad.q9k8r/910.5061/dryad.q9k8r/1010.5061/dryad.q9k8r/1110.506 |
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Geophysical Research Letters |
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39 |
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16 |
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1770273829271109632 |