Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2)
This study evaluates the impact of increasing resolution on Arctic Ocean simulations using five pairs of matched low- and high-resolution models within the OMIP-2 (Ocean Model Intercomparison Project phase 2) framework. The primary objective is to assess whether a higher resolution can mitigate typi...
Published in: | Geoscientific Model Development |
---|---|
Main Authors: | , , , , , , , , , , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
2024
|
Subjects: | |
Online Access: | https://doi.org/10.5194/gmd-17-347-2024 https://gmd.copernicus.org/articles/17/347/2024/ |
id |
ftcopernicus:oai:publications.copernicus.org:gmd112329 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:gmd112329 2024-09-15T17:53:14+00:00 Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2) Wang, Qiang Shu, Qi Bozec, Alexandra Chassignet, Eric P. Fogli, Pier Giuseppe Fox-Kemper, Baylor Hogg, Andy McC. Iovino, Doroteaciro Kiss, Andrew E. Koldunov, Nikolay Sommer, Julien Li, Yiwen Lin, Pengfei Liu, Hailong Polyakov, Igor Scholz, Patrick Sidorenko, Dmitry Wang, Shizhu Xu, Xiaobiao 2024-01-15 application/pdf https://doi.org/10.5194/gmd-17-347-2024 https://gmd.copernicus.org/articles/17/347/2024/ eng eng doi:10.5194/gmd-17-347-2024 https://gmd.copernicus.org/articles/17/347/2024/ eISSN: 1991-9603 Text 2024 ftcopernicus https://doi.org/10.5194/gmd-17-347-2024 2024-08-28T05:24:15Z This study evaluates the impact of increasing resolution on Arctic Ocean simulations using five pairs of matched low- and high-resolution models within the OMIP-2 (Ocean Model Intercomparison Project phase 2) framework. The primary objective is to assess whether a higher resolution can mitigate typical biases in low-resolution models and improve the representation of key climate-relevant variables. We reveal that increasing the horizontal resolution contributes to a reduction in biases in mean temperature and salinity and improves the simulation of the Atlantic water layer and its decadal warming events. A higher resolution also leads to better agreement with observed surface mixed-layer depth, cold halocline base depth and Arctic gateway transports in the Fram and Davis straits. However, the simulation of the mean state and temporal changes in Arctic freshwater content does not show improvement with increased resolution. Not all models achieve improvements for all analyzed ocean variables when spatial resolution is increased so it is crucial to recognize that model numerics and parameterizations also play an important role in faithful simulations. Overall, a higher resolution shows promise in improving the simulation of key Arctic Ocean features and processes, but efforts in model development are required to achieve more accurate representations across all climate-relevant variables. Text Arctic Ocean Copernicus Publications: E-Journals Geoscientific Model Development 17 1 347 379 |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
This study evaluates the impact of increasing resolution on Arctic Ocean simulations using five pairs of matched low- and high-resolution models within the OMIP-2 (Ocean Model Intercomparison Project phase 2) framework. The primary objective is to assess whether a higher resolution can mitigate typical biases in low-resolution models and improve the representation of key climate-relevant variables. We reveal that increasing the horizontal resolution contributes to a reduction in biases in mean temperature and salinity and improves the simulation of the Atlantic water layer and its decadal warming events. A higher resolution also leads to better agreement with observed surface mixed-layer depth, cold halocline base depth and Arctic gateway transports in the Fram and Davis straits. However, the simulation of the mean state and temporal changes in Arctic freshwater content does not show improvement with increased resolution. Not all models achieve improvements for all analyzed ocean variables when spatial resolution is increased so it is crucial to recognize that model numerics and parameterizations also play an important role in faithful simulations. Overall, a higher resolution shows promise in improving the simulation of key Arctic Ocean features and processes, but efforts in model development are required to achieve more accurate representations across all climate-relevant variables. |
format |
Text |
author |
Wang, Qiang Shu, Qi Bozec, Alexandra Chassignet, Eric P. Fogli, Pier Giuseppe Fox-Kemper, Baylor Hogg, Andy McC. Iovino, Doroteaciro Kiss, Andrew E. Koldunov, Nikolay Sommer, Julien Li, Yiwen Lin, Pengfei Liu, Hailong Polyakov, Igor Scholz, Patrick Sidorenko, Dmitry Wang, Shizhu Xu, Xiaobiao |
spellingShingle |
Wang, Qiang Shu, Qi Bozec, Alexandra Chassignet, Eric P. Fogli, Pier Giuseppe Fox-Kemper, Baylor Hogg, Andy McC. Iovino, Doroteaciro Kiss, Andrew E. Koldunov, Nikolay Sommer, Julien Li, Yiwen Lin, Pengfei Liu, Hailong Polyakov, Igor Scholz, Patrick Sidorenko, Dmitry Wang, Shizhu Xu, Xiaobiao Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2) |
author_facet |
Wang, Qiang Shu, Qi Bozec, Alexandra Chassignet, Eric P. Fogli, Pier Giuseppe Fox-Kemper, Baylor Hogg, Andy McC. Iovino, Doroteaciro Kiss, Andrew E. Koldunov, Nikolay Sommer, Julien Li, Yiwen Lin, Pengfei Liu, Hailong Polyakov, Igor Scholz, Patrick Sidorenko, Dmitry Wang, Shizhu Xu, Xiaobiao |
author_sort |
Wang, Qiang |
title |
Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_short |
Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_full |
Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_fullStr |
Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_full_unstemmed |
Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2) |
title_sort |
impact of increased resolution on arctic ocean simulations in ocean model intercomparison project phase 2 (omip-2) |
publishDate |
2024 |
url |
https://doi.org/10.5194/gmd-17-347-2024 https://gmd.copernicus.org/articles/17/347/2024/ |
genre |
Arctic Ocean |
genre_facet |
Arctic Ocean |
op_source |
eISSN: 1991-9603 |
op_relation |
doi:10.5194/gmd-17-347-2024 https://gmd.copernicus.org/articles/17/347/2024/ |
op_doi |
https://doi.org/10.5194/gmd-17-347-2024 |
container_title |
Geoscientific Model Development |
container_volume |
17 |
container_issue |
1 |
container_start_page |
347 |
op_container_end_page |
379 |
_version_ |
1810295239123927040 |