Wave Evolution in Off-Ice Wind Conditions
The reduction of the sea ice coverage increases the importance of wind waves in the Arctic. Updates to the standard spectral wave models in recent years have included many aspects of wave-ice interaction. Here we use high-resolution wave parameters retrieved from TerraSAR-X images and in situ SWIFT...
Published in: | Journal of Geophysical Research: Oceans |
---|---|
Main Authors: | , , , |
Format: | Other Non-Article Part of Journal/Newspaper |
Language: | unknown |
Published: |
Wiley
2018
|
Subjects: | |
Online Access: | https://elib.dlr.de/120521/ https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018JC013793 |
id |
ftdlr:oai:elib.dlr.de:120521 |
---|---|
record_format |
openpolar |
spelling |
ftdlr:oai:elib.dlr.de:120521 2023-05-15T14:57:14+02:00 Wave Evolution in Off-Ice Wind Conditions Gemmrich, Johannes Rogers, W. Erick Thomson, Jim Lehner, Susanne 2018-08 https://elib.dlr.de/120521/ https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018JC013793 unknown Wiley Gemmrich, Johannes und Rogers, W. Erick und Thomson, Jim und Lehner, Susanne (2018) Wave Evolution in Off-Ice Wind Conditions. Journal of Geophysical Research: Oceans, 123 (8), Seiten 5543-5556. Wiley. doi:10.1029/2018JC013793 <https://doi.org/10.1029/2018JC013793>. ISSN 2169-9275. Photogrammetrie und Bildanalyse Zeitschriftenbeitrag PeerReviewed 2018 ftdlr https://doi.org/10.1029/2018JC013793 2023-03-06T00:16:16Z The reduction of the sea ice coverage increases the importance of wind waves in the Arctic. Updates to the standard spectral wave models in recent years have included many aspects of wave-ice interaction. Here we use high-resolution wave parameters retrieved from TerraSAR-X images and in situ SWIFT buoy observations to evaluate the performance of WAVEWATCH III® in ice-free waters in the western Arctic over a 7-week period including the fall freeze-up. About two thirds of the analyzed data sets show a good agreement between observations and model results. In other cases, more accurate representation of the wind input fields and the ice coverage could improve the model predictions. Two data sets with larger discrepancy are discussed in more detail. In these two cases of low model skill, with off-ice wind conditions, we show that the model wind‐sea growth is too weak to match TerraSAR‐X observations, and this situation is improved only slightly by including the effects of atmospheric stability using existing methods. Application of an effective fetch parameterization, which allows for reduced wave generation within the marginal ice zone prior to the open ocean, provides the best estimation of wave growth during off-ice winds. Other Non-Article Part of Journal/Newspaper Arctic Sea ice German Aerospace Center: elib - DLR electronic library Arctic Journal of Geophysical Research: Oceans 123 8 5543 5556 |
institution |
Open Polar |
collection |
German Aerospace Center: elib - DLR electronic library |
op_collection_id |
ftdlr |
language |
unknown |
topic |
Photogrammetrie und Bildanalyse |
spellingShingle |
Photogrammetrie und Bildanalyse Gemmrich, Johannes Rogers, W. Erick Thomson, Jim Lehner, Susanne Wave Evolution in Off-Ice Wind Conditions |
topic_facet |
Photogrammetrie und Bildanalyse |
description |
The reduction of the sea ice coverage increases the importance of wind waves in the Arctic. Updates to the standard spectral wave models in recent years have included many aspects of wave-ice interaction. Here we use high-resolution wave parameters retrieved from TerraSAR-X images and in situ SWIFT buoy observations to evaluate the performance of WAVEWATCH III® in ice-free waters in the western Arctic over a 7-week period including the fall freeze-up. About two thirds of the analyzed data sets show a good agreement between observations and model results. In other cases, more accurate representation of the wind input fields and the ice coverage could improve the model predictions. Two data sets with larger discrepancy are discussed in more detail. In these two cases of low model skill, with off-ice wind conditions, we show that the model wind‐sea growth is too weak to match TerraSAR‐X observations, and this situation is improved only slightly by including the effects of atmospheric stability using existing methods. Application of an effective fetch parameterization, which allows for reduced wave generation within the marginal ice zone prior to the open ocean, provides the best estimation of wave growth during off-ice winds. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Gemmrich, Johannes Rogers, W. Erick Thomson, Jim Lehner, Susanne |
author_facet |
Gemmrich, Johannes Rogers, W. Erick Thomson, Jim Lehner, Susanne |
author_sort |
Gemmrich, Johannes |
title |
Wave Evolution in Off-Ice Wind Conditions |
title_short |
Wave Evolution in Off-Ice Wind Conditions |
title_full |
Wave Evolution in Off-Ice Wind Conditions |
title_fullStr |
Wave Evolution in Off-Ice Wind Conditions |
title_full_unstemmed |
Wave Evolution in Off-Ice Wind Conditions |
title_sort |
wave evolution in off-ice wind conditions |
publisher |
Wiley |
publishDate |
2018 |
url |
https://elib.dlr.de/120521/ https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2018JC013793 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
Gemmrich, Johannes und Rogers, W. Erick und Thomson, Jim und Lehner, Susanne (2018) Wave Evolution in Off-Ice Wind Conditions. Journal of Geophysical Research: Oceans, 123 (8), Seiten 5543-5556. Wiley. doi:10.1029/2018JC013793 <https://doi.org/10.1029/2018JC013793>. ISSN 2169-9275. |
op_doi |
https://doi.org/10.1029/2018JC013793 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
123 |
container_issue |
8 |
container_start_page |
5543 |
op_container_end_page |
5556 |
_version_ |
1766329321446703104 |