Mesoscale Eddies in the Arctic Ocean: Insights from a High-Resolution Simulation
Mesoscale eddies are significant drivers of the dynamics in the Arctic Ocean and are crucial to understanding ongoing changes in the region. However, adequately resolving these small-scale features in ocean models is challenging, and high-resolution simulations are required to accurately represent m...
Main Authors: | , , , , |
---|---|
Format: | Conference Object |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020474 |
id |
ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5020474 |
---|---|
record_format |
openpolar |
spelling |
ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5020474 2023-07-30T04:00:44+02:00 Mesoscale Eddies in the Arctic Ocean: Insights from a High-Resolution Simulation Müller, V. Qang, Q. Koldunov, N. Sergey, D. Thomas, J. 2023-07-11 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020474 eng eng info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-3184 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020474 XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) info:eu-repo/semantics/conferenceObject 2023 ftgfzpotsdam https://doi.org/10.57757/IUGG23-3184 2023-07-09T23:40:17Z Mesoscale eddies are significant drivers of the dynamics in the Arctic Ocean and are crucial to understanding ongoing changes in the region. However, adequately resolving these small-scale features in ocean models is challenging, and high-resolution simulations are required to accurately represent mesoscale processes.In this study, we utilized a simulation from the unstructured-mesh Finite volumE Sea ice-Ocean Model (FESOM2) with a 1-km horizontal resolution in the Arctic Ocean, which can be considered eddy-resolving. This model has been previously used to study the distribution of eddy kinetic energy (EKE) in the Arctic, and we now evaluate the changes of EKE in the Eurasian Basin from seasonal to interannual time scales and their connection to other properties, such as sea-ice cover, baroclinic conversion rate, and stratification.We found that EKE seasonality is predominantly influenced by changes in sea-ice cover, while monthly anomalies have different drivers at different depths. The mixed layer, which is strongly linked to the surface, is primarily affected by sea-ice variability. In contrast, deeper levels are shielded from the surface by stratification and are more strongly influenced by baroclinic conversion.Overall, our high-resolution simulation sheds light on the complex relationship between mesoscale eddies, sea-ice cover, baroclinic conversion and stratification in the Arctic Ocean. Conference Object Arctic Arctic Ocean Sea ice GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Arctic Arctic Ocean |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
English |
description |
Mesoscale eddies are significant drivers of the dynamics in the Arctic Ocean and are crucial to understanding ongoing changes in the region. However, adequately resolving these small-scale features in ocean models is challenging, and high-resolution simulations are required to accurately represent mesoscale processes.In this study, we utilized a simulation from the unstructured-mesh Finite volumE Sea ice-Ocean Model (FESOM2) with a 1-km horizontal resolution in the Arctic Ocean, which can be considered eddy-resolving. This model has been previously used to study the distribution of eddy kinetic energy (EKE) in the Arctic, and we now evaluate the changes of EKE in the Eurasian Basin from seasonal to interannual time scales and their connection to other properties, such as sea-ice cover, baroclinic conversion rate, and stratification.We found that EKE seasonality is predominantly influenced by changes in sea-ice cover, while monthly anomalies have different drivers at different depths. The mixed layer, which is strongly linked to the surface, is primarily affected by sea-ice variability. In contrast, deeper levels are shielded from the surface by stratification and are more strongly influenced by baroclinic conversion.Overall, our high-resolution simulation sheds light on the complex relationship between mesoscale eddies, sea-ice cover, baroclinic conversion and stratification in the Arctic Ocean. |
format |
Conference Object |
author |
Müller, V. Qang, Q. Koldunov, N. Sergey, D. Thomas, J. |
spellingShingle |
Müller, V. Qang, Q. Koldunov, N. Sergey, D. Thomas, J. Mesoscale Eddies in the Arctic Ocean: Insights from a High-Resolution Simulation |
author_facet |
Müller, V. Qang, Q. Koldunov, N. Sergey, D. Thomas, J. |
author_sort |
Müller, V. |
title |
Mesoscale Eddies in the Arctic Ocean: Insights from a High-Resolution Simulation |
title_short |
Mesoscale Eddies in the Arctic Ocean: Insights from a High-Resolution Simulation |
title_full |
Mesoscale Eddies in the Arctic Ocean: Insights from a High-Resolution Simulation |
title_fullStr |
Mesoscale Eddies in the Arctic Ocean: Insights from a High-Resolution Simulation |
title_full_unstemmed |
Mesoscale Eddies in the Arctic Ocean: Insights from a High-Resolution Simulation |
title_sort |
mesoscale eddies in the arctic ocean: insights from a high-resolution simulation |
publishDate |
2023 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020474 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_source |
XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.57757/IUGG23-3184 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020474 |
op_doi |
https://doi.org/10.57757/IUGG23-3184 |
_version_ |
1772811278497087488 |