Current interaction in large-scale wave models with an application to Ireland
A nested large-scale wave model that covers most of the Atlantic Ocean and focuses on generating accurate swell conditions for Ireland is presented and validated over the two years 2016−2017. A sensitivity analysis for the βmax parameter appearing in the wind input formulation is carried out, optimi...
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ftunivnantes:oai:HAL:hal-03972042v1 2023-05-15T17:38:34+02:00 Current interaction in large-scale wave models with an application to Ireland Calvino, Clément Dabrowski, Tomasz Dias, Frederic University College Dublin Dublin (UCD) Marine Institute Ireland 2022-08 https://hal.science/hal-03972042 https://doi.org/10.1016/j.csr.2022.104798 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/arxiv/2108.00509 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.csr.2022.104798 hal-03972042 https://hal.science/hal-03972042 ARXIV: 2108.00509 doi:10.1016/j.csr.2022.104798 ISSN: 0278-4343 EISSN: 1873-6955 Continental Shelf Research https://hal.science/hal-03972042 Continental Shelf Research, 2022, 245, pp.104798. ⟨10.1016/j.csr.2022.104798⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2022 ftunivnantes https://doi.org/10.1016/j.csr.2022.104798 2023-02-08T01:36:48Z A nested large-scale wave model that covers most of the Atlantic Ocean and focuses on generating accurate swell conditions for Ireland is presented and validated over the two years 2016−2017. A sensitivity analysis for the βmax parameter appearing in the wind input formulation is carried out, optimising the extreme significant wave heights from the model against altimetry data in the North-East Atlantic region around Ireland. An optimal value of 1.75 is found using the ERA5 reanalysis corrected beforehand for a well-known negative bias for the high wind speed values. The impact of currents is studied using the surface currents from the GLORYS12 product. Currents slightly reduce by 1% the root-mean-square and bias errors for significant wave height compared to altimetry data. However, they explain most of the wave energy at scales less than 50m. The variability induced by currents is found to be more noticeable when looking at the satellite tracks. Track following observations indicate that wave refraction and advection induced by mesoscale eddies are correctly captured by the model, inducing a spatial variability reaching up to 0.5m. However, this modulation is of the same order as a shorter-scale variability appearing in the altimetry data. An averaging operator is used to smooth the data and remove those high-frequency variations. The main finding is that a spatial shift seems to appear between the model and the observations, attributed to the relatively poor resolution of the current product used for the scales observed. Article in Journal/Newspaper North East Atlantic Université de Nantes: HAL-UNIV-NANTES Continental Shelf Research 245 104798 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Calvino, Clément Dabrowski, Tomasz Dias, Frederic Current interaction in large-scale wave models with an application to Ireland |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
A nested large-scale wave model that covers most of the Atlantic Ocean and focuses on generating accurate swell conditions for Ireland is presented and validated over the two years 2016−2017. A sensitivity analysis for the βmax parameter appearing in the wind input formulation is carried out, optimising the extreme significant wave heights from the model against altimetry data in the North-East Atlantic region around Ireland. An optimal value of 1.75 is found using the ERA5 reanalysis corrected beforehand for a well-known negative bias for the high wind speed values. The impact of currents is studied using the surface currents from the GLORYS12 product. Currents slightly reduce by 1% the root-mean-square and bias errors for significant wave height compared to altimetry data. However, they explain most of the wave energy at scales less than 50m. The variability induced by currents is found to be more noticeable when looking at the satellite tracks. Track following observations indicate that wave refraction and advection induced by mesoscale eddies are correctly captured by the model, inducing a spatial variability reaching up to 0.5m. However, this modulation is of the same order as a shorter-scale variability appearing in the altimetry data. An averaging operator is used to smooth the data and remove those high-frequency variations. The main finding is that a spatial shift seems to appear between the model and the observations, attributed to the relatively poor resolution of the current product used for the scales observed. |
author2 |
University College Dublin Dublin (UCD) Marine Institute Ireland |
format |
Article in Journal/Newspaper |
author |
Calvino, Clément Dabrowski, Tomasz Dias, Frederic |
author_facet |
Calvino, Clément Dabrowski, Tomasz Dias, Frederic |
author_sort |
Calvino, Clément |
title |
Current interaction in large-scale wave models with an application to Ireland |
title_short |
Current interaction in large-scale wave models with an application to Ireland |
title_full |
Current interaction in large-scale wave models with an application to Ireland |
title_fullStr |
Current interaction in large-scale wave models with an application to Ireland |
title_full_unstemmed |
Current interaction in large-scale wave models with an application to Ireland |
title_sort |
current interaction in large-scale wave models with an application to ireland |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03972042 https://doi.org/10.1016/j.csr.2022.104798 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
ISSN: 0278-4343 EISSN: 1873-6955 Continental Shelf Research https://hal.science/hal-03972042 Continental Shelf Research, 2022, 245, pp.104798. ⟨10.1016/j.csr.2022.104798⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/arxiv/2108.00509 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.csr.2022.104798 hal-03972042 https://hal.science/hal-03972042 ARXIV: 2108.00509 doi:10.1016/j.csr.2022.104798 |
op_doi |
https://doi.org/10.1016/j.csr.2022.104798 |
container_title |
Continental Shelf Research |
container_volume |
245 |
container_start_page |
104798 |
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1766139065132908544 |