Sea ice inertial oscillations in the Arctic Basin
An original method to quantify the amplitude of inertial motion of oceanic and ice drifters, through the introduction of a non-dimensional parameter M defined from a spectral analysis, is presented. A strong seasonal dependence of the magnitude of sea ice inertial oscillations is revealed, in agreem...
Published in: | The Cryosphere |
---|---|
Main Authors: | , , , , |
Format: | Text |
Language: | English |
Published: |
2018
|
Subjects: | |
Online Access: | https://doi.org/10.5194/tc-6-1187-2012 https://tc.copernicus.org/articles/6/1187/2012/ |
id |
ftcopernicus:oai:publications.copernicus.org:tc15431 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:tc15431 2023-05-15T14:29:07+02:00 Sea ice inertial oscillations in the Arctic Basin Gimbert, F. Marsan, D. Weiss, J. Jourdain, N. C. Barnier, B. 2018-09-27 application/pdf https://doi.org/10.5194/tc-6-1187-2012 https://tc.copernicus.org/articles/6/1187/2012/ eng eng doi:10.5194/tc-6-1187-2012 https://tc.copernicus.org/articles/6/1187/2012/ eISSN: 1994-0424 Text 2018 ftcopernicus https://doi.org/10.5194/tc-6-1187-2012 2020-07-20T16:25:41Z An original method to quantify the amplitude of inertial motion of oceanic and ice drifters, through the introduction of a non-dimensional parameter M defined from a spectral analysis, is presented. A strong seasonal dependence of the magnitude of sea ice inertial oscillations is revealed, in agreement with the corresponding annual cycles of sea ice extent, concentration, thickness, advection velocity, and deformation rates. The spatial pattern of the magnitude of the sea ice inertial oscillations over the Arctic Basin is also in agreement with the sea ice thickness and concentration patterns. This argues for a strong interaction between the magnitude of inertial motion on one hand, the dissipation of energy through mechanical processes, and the cohesiveness of the cover on the other hand. Finally, a significant multi-annual evolution towards greater magnitudes of inertial oscillations in recent years, in both summer and winter, is reported, thus concomitant with reduced sea ice thickness, concentration and spatial extent. Text Arctic Basin Arctic Sea ice Copernicus Publications: E-Journals Arctic The Cryosphere 6 5 1187 1201 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
An original method to quantify the amplitude of inertial motion of oceanic and ice drifters, through the introduction of a non-dimensional parameter M defined from a spectral analysis, is presented. A strong seasonal dependence of the magnitude of sea ice inertial oscillations is revealed, in agreement with the corresponding annual cycles of sea ice extent, concentration, thickness, advection velocity, and deformation rates. The spatial pattern of the magnitude of the sea ice inertial oscillations over the Arctic Basin is also in agreement with the sea ice thickness and concentration patterns. This argues for a strong interaction between the magnitude of inertial motion on one hand, the dissipation of energy through mechanical processes, and the cohesiveness of the cover on the other hand. Finally, a significant multi-annual evolution towards greater magnitudes of inertial oscillations in recent years, in both summer and winter, is reported, thus concomitant with reduced sea ice thickness, concentration and spatial extent. |
format |
Text |
author |
Gimbert, F. Marsan, D. Weiss, J. Jourdain, N. C. Barnier, B. |
spellingShingle |
Gimbert, F. Marsan, D. Weiss, J. Jourdain, N. C. Barnier, B. Sea ice inertial oscillations in the Arctic Basin |
author_facet |
Gimbert, F. Marsan, D. Weiss, J. Jourdain, N. C. Barnier, B. |
author_sort |
Gimbert, F. |
title |
Sea ice inertial oscillations in the Arctic Basin |
title_short |
Sea ice inertial oscillations in the Arctic Basin |
title_full |
Sea ice inertial oscillations in the Arctic Basin |
title_fullStr |
Sea ice inertial oscillations in the Arctic Basin |
title_full_unstemmed |
Sea ice inertial oscillations in the Arctic Basin |
title_sort |
sea ice inertial oscillations in the arctic basin |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-6-1187-2012 https://tc.copernicus.org/articles/6/1187/2012/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Basin Arctic Sea ice |
genre_facet |
Arctic Basin Arctic Sea ice |
op_source |
eISSN: 1994-0424 |
op_relation |
doi:10.5194/tc-6-1187-2012 https://tc.copernicus.org/articles/6/1187/2012/ |
op_doi |
https://doi.org/10.5194/tc-6-1187-2012 |
container_title |
The Cryosphere |
container_volume |
6 |
container_issue |
5 |
container_start_page |
1187 |
op_container_end_page |
1201 |
_version_ |
1766303208763817984 |