Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2)

<p>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 miti...

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Main Authors: Q. Wang, Q. Shu, A. Bozec, E. P. Chassignet, P. G. Fogli, B. Fox-Kemper, A. McC. Hogg, D. Iovino, A. E. Kiss, N. Koldunov, J. Le Sommer, Y. Li, P. Lin, H. Liu, I. Polyakov, P. Scholz, D. Sidorenko, S. Wang, X. Xu
Format: Article
Language:English
Published: Copernicus Publications 2024-01-01
Series:Geoscientific Model Development
Online Access:https://gmd.copernicus.org/articles/17/347/2024/gmd-17-347-2024.pdf
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author Q. Wang
Q. Shu
Q. Shu
A. Bozec
E. P. Chassignet
P. G. Fogli
B. Fox-Kemper
A. McC. Hogg
D. Iovino
A. E. Kiss
N. Koldunov
J. Le Sommer
Y. Li
P. Lin
H. Liu
I. Polyakov
I. Polyakov
P. Scholz
D. Sidorenko
S. Wang
S. Wang
X. Xu
author_facet Q. Wang
Q. Shu
Q. Shu
A. Bozec
E. P. Chassignet
P. G. Fogli
B. Fox-Kemper
A. McC. Hogg
D. Iovino
A. E. Kiss
N. Koldunov
J. Le Sommer
Y. Li
P. Lin
H. Liu
I. Polyakov
I. Polyakov
P. Scholz
D. Sidorenko
S. Wang
S. Wang
X. Xu
author_sort Q. Wang
collection DOAJ
description <p>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.</p>
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spelling doaj.art-79bd2abea31949d8a490b1a1e828b6fd2024-01-15T13:53:11ZengCopernicus PublicationsGeoscientific Model Development1991-959X1991-96032024-01-011734737910.5194/gmd-17-347-2024Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2) Q. Wang0Q. Shu1Q. Shu2A. Bozec3E. P. Chassignet4P. G. Fogli5B. Fox-Kemper6A. McC. Hogg7D. Iovino8A. E. Kiss9N. Koldunov10J. Le Sommer11Y. Li12P. Lin13H. Liu14I. Polyakov15I. Polyakov16P. Scholz17D. Sidorenko18S. Wang19S. Wang20X. Xu21Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, GermanyFirst Institute of Oceanography, Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao, ChinaShandong Key Laboratory of Marine Science and Numerical Modeling, Qingdao, ChinaCenter for Ocean–Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, USACenter for Ocean–Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, USAOcean Modeling and Data Assimilation Division, Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), Bologna, ItalyDepartment of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI, USAResearch School of Earth Sciences and ARC Centre of Excellence for Climate Extremes, Australian National University, Canberra, AustraliaOcean Modeling and Data Assimilation Division, Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), Bologna, ItalyResearch School of Earth Sciences and ARC Centre of Excellence for Climate Extremes, Australian National University, Canberra, AustraliaAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, GermanyUniv. Grenoble Alpes, CNRS, IRD, Grenoble INP, INRAE, IGE, Grenoble, FranceState Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, ChinaInternational Arctic Research Center and College of Natural Science and Mathematics, University of Alaska Fairbanks, Alaska, USAFinnish Meteorological Institute, Helsinki, FinlandAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, GermanyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, GermanyFirst Institute of Oceanography, Key Laboratory of Marine Science and Numerical Modeling, Ministry of Natural Resources, Qingdao, ChinaShandong Key Laboratory of Marine Science and Numerical Modeling, Qingdao, ChinaCenter for Ocean–Atmospheric Prediction Studies, Florida State University, Tallahassee, FL, USA<p>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.</p>https://gmd.copernicus.org/articles/17/347/2024/gmd-17-347-2024.pdf
spellingShingle Q. Wang
Q. Shu
Q. Shu
A. Bozec
E. P. Chassignet
P. G. Fogli
B. Fox-Kemper
A. McC. Hogg
D. Iovino
A. E. Kiss
N. Koldunov
J. Le Sommer
Y. Li
P. Lin
H. Liu
I. Polyakov
I. Polyakov
P. Scholz
D. Sidorenko
S. Wang
S. Wang
X. Xu
Impact of increased resolution on Arctic Ocean simulations in Ocean Model Intercomparison Project phase 2 (OMIP-2)
Geoscientific Model Development
title 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_short 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
url https://gmd.copernicus.org/articles/17/347/2024/gmd-17-347-2024.pdf
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