Airborne Remote Sensing of Wave Propagation in the Marginal Ice Zone
Airborne scanning lidar was used to measure the evolution of the surface wave field in the marginal ice zone (MIZ) during two separate wave events in the Beaufort Sea in October 2015. The lidar data consisted of a 2‐D field of surface elevation with horizontal resolutions between 17 and 33 cm, over...
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ftarchimer:oai:archimer.ifremer.fr:55086 2023-05-15T15:40:37+02:00 Airborne Remote Sensing of Wave Propagation in the Marginal Ice Zone Sutherland, Peter Brozena, John Rogers, W. Erick Doble, Martin Wadhams, Peter 2018-06 application/pdf https://archimer.ifremer.fr/doc/00439/55086/56526.pdf https://archimer.ifremer.fr/doc/00439/55086/56527.pdf https://doi.org/10.1029/2018JC013785 https://archimer.ifremer.fr/doc/00439/55086/ eng eng Amer Geophysical Union https://archimer.ifremer.fr/doc/00439/55086/56526.pdf https://archimer.ifremer.fr/doc/00439/55086/56527.pdf doi:10.1029/2018JC013785 https://archimer.ifremer.fr/doc/00439/55086/ 2018. American Geophysical Union. All Rights Reserved. info:eu-repo/semantics/openAccess restricted use Journal Of Geophysical Research-oceans (2169-9275) (Amer Geophysical Union), 2018-06 , Vol. 123 , N. 6 , P. 4132-4152 surface waves marginal ice zone wave attenuation wave growth rate air-sea-ice airborne scanning lidar text Publication info:eu-repo/semantics/article 2018 ftarchimer https://doi.org/10.1029/2018JC013785 2021-09-23T20:30:59Z Airborne scanning lidar was used to measure the evolution of the surface wave field in the marginal ice zone (MIZ) during two separate wave events in the Beaufort Sea in October 2015. The lidar data consisted of a 2‐D field of surface elevation with horizontal resolutions between 17 and 33 cm, over a swath approximately 150‐220 m wide, centred on the ground track of the aircraft. Those data were used to compute directional wavenumber spectra of the surface wave field. Comparison with nearly collocated buoy data found the lidar and buoy measurements to be generally consistent. During the first event, waves travelling from open water into the ice were attenuated by the ice. The low spectral spreading and k7/4 spectral dependence of the attenuation was consistent with dissipative models that treat sea ice as a highly viscous fluid floating on a less viscous ocean. Upper‐ocean eddy viscosities calculated using that model were found to be significantly lower than those from previous work. The second event was in off‐ice winds and cold temperatures, allowing measurement of the wave fetch relation in ice‐forming conditions. The wave growth rate was found to be slightly higher than previous measurements under unstable atmospheric conditions without ice formation. Comparison with WAVEWATCH III model output highlighted the importance of accurate ice information and fine geographic computational resolution when making predictions near the ice edge. Finally, the very short scales over which the wave field was observed to evolve in the MIZ are discussed. Article in Journal/Newspaper Beaufort Sea Sea ice Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Journal of Geophysical Research: Oceans 123 6 4132 4152 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
surface waves marginal ice zone wave attenuation wave growth rate air-sea-ice airborne scanning lidar |
spellingShingle |
surface waves marginal ice zone wave attenuation wave growth rate air-sea-ice airborne scanning lidar Sutherland, Peter Brozena, John Rogers, W. Erick Doble, Martin Wadhams, Peter Airborne Remote Sensing of Wave Propagation in the Marginal Ice Zone |
topic_facet |
surface waves marginal ice zone wave attenuation wave growth rate air-sea-ice airborne scanning lidar |
description |
Airborne scanning lidar was used to measure the evolution of the surface wave field in the marginal ice zone (MIZ) during two separate wave events in the Beaufort Sea in October 2015. The lidar data consisted of a 2‐D field of surface elevation with horizontal resolutions between 17 and 33 cm, over a swath approximately 150‐220 m wide, centred on the ground track of the aircraft. Those data were used to compute directional wavenumber spectra of the surface wave field. Comparison with nearly collocated buoy data found the lidar and buoy measurements to be generally consistent. During the first event, waves travelling from open water into the ice were attenuated by the ice. The low spectral spreading and k7/4 spectral dependence of the attenuation was consistent with dissipative models that treat sea ice as a highly viscous fluid floating on a less viscous ocean. Upper‐ocean eddy viscosities calculated using that model were found to be significantly lower than those from previous work. The second event was in off‐ice winds and cold temperatures, allowing measurement of the wave fetch relation in ice‐forming conditions. The wave growth rate was found to be slightly higher than previous measurements under unstable atmospheric conditions without ice formation. Comparison with WAVEWATCH III model output highlighted the importance of accurate ice information and fine geographic computational resolution when making predictions near the ice edge. Finally, the very short scales over which the wave field was observed to evolve in the MIZ are discussed. |
format |
Article in Journal/Newspaper |
author |
Sutherland, Peter Brozena, John Rogers, W. Erick Doble, Martin Wadhams, Peter |
author_facet |
Sutherland, Peter Brozena, John Rogers, W. Erick Doble, Martin Wadhams, Peter |
author_sort |
Sutherland, Peter |
title |
Airborne Remote Sensing of Wave Propagation in the Marginal Ice Zone |
title_short |
Airborne Remote Sensing of Wave Propagation in the Marginal Ice Zone |
title_full |
Airborne Remote Sensing of Wave Propagation in the Marginal Ice Zone |
title_fullStr |
Airborne Remote Sensing of Wave Propagation in the Marginal Ice Zone |
title_full_unstemmed |
Airborne Remote Sensing of Wave Propagation in the Marginal Ice Zone |
title_sort |
airborne remote sensing of wave propagation in the marginal ice zone |
publisher |
Amer Geophysical Union |
publishDate |
2018 |
url |
https://archimer.ifremer.fr/doc/00439/55086/56526.pdf https://archimer.ifremer.fr/doc/00439/55086/56527.pdf https://doi.org/10.1029/2018JC013785 https://archimer.ifremer.fr/doc/00439/55086/ |
genre |
Beaufort Sea Sea ice |
genre_facet |
Beaufort Sea Sea ice |
op_source |
Journal Of Geophysical Research-oceans (2169-9275) (Amer Geophysical Union), 2018-06 , Vol. 123 , N. 6 , P. 4132-4152 |
op_relation |
https://archimer.ifremer.fr/doc/00439/55086/56526.pdf https://archimer.ifremer.fr/doc/00439/55086/56527.pdf doi:10.1029/2018JC013785 https://archimer.ifremer.fr/doc/00439/55086/ |
op_rights |
2018. American Geophysical Union. All Rights Reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1029/2018JC013785 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
123 |
container_issue |
6 |
container_start_page |
4132 |
op_container_end_page |
4152 |
_version_ |
1766373254458507264 |