An EC-Earth coupled atmosphere–ocean single-column model (AOSCM.v1_EC-Earth3) for studying coupled marine and polar processes
Single-column models (SCMs) have been used as tools to help develop numerical weather prediction and global climate models for several decades. SCMs decouple small-scale processes from large-scale forcing, which allows the testing of physical parameterisations in a controlled environment with reduce...
Published in: | Geoscientific Model Development |
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Online Access: | https://doi.org/10.5194/gmd-11-4117-2018 https://gmd.copernicus.org/articles/11/4117/2018/ |
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ftcopernicus:oai:publications.copernicus.org:gmd67100 2023-05-15T15:11:09+02:00 An EC-Earth coupled atmosphere–ocean single-column model (AOSCM.v1_EC-Earth3) for studying coupled marine and polar processes Hartung, Kerstin Svensson, Gunilla Struthers, Hamish Deppenmeier, Anna-Lena Hazeleger, Wilco 2019-01-10 application/pdf https://doi.org/10.5194/gmd-11-4117-2018 https://gmd.copernicus.org/articles/11/4117/2018/ eng eng doi:10.5194/gmd-11-4117-2018 https://gmd.copernicus.org/articles/11/4117/2018/ eISSN: 1991-9603 Text 2019 ftcopernicus https://doi.org/10.5194/gmd-11-4117-2018 2020-07-20T16:23:05Z Single-column models (SCMs) have been used as tools to help develop numerical weather prediction and global climate models for several decades. SCMs decouple small-scale processes from large-scale forcing, which allows the testing of physical parameterisations in a controlled environment with reduced computational cost. Typically, either the ocean, sea ice or atmosphere is fully modelled and assumptions have to be made regarding the boundary conditions from other subsystems, adding a potential source of error. Here, we present a fully coupled atmosphere–ocean SCM (AOSCM), which is based on the global climate model EC-Earth3. The initial configuration of the AOSCM consists of the Nucleus for European Modelling of the Ocean (NEMO3.6) (ocean), the Louvain-la-Neuve Sea Ice Model (LIM3) (sea ice), the Open Integrated Forecasting System (OpenIFS) cycle 40r1 (atmosphere), and OASIS3-MCT (coupler). Results from the AOSCM are presented at three locations: the tropical Atlantic, the midlatitude Pacific and the Arctic. At all three locations, in situ observations are available for comparison. We find that the coupled AOSCM can capture the observed atmospheric and oceanic evolution based on comparisons with buoy data, soundings and ship-based observations. The model evolution is sensitive to the initial conditions and forcing data imposed on the column. Comparing coupled and uncoupled configurations of the model can help disentangle model feedbacks. We demonstrate that the AOSCM in the current set-up is a valuable tool to advance our understanding in marine and polar boundary layer processes and the interactions between the individual components of the system (atmosphere, sea ice and ocean). Text Arctic Sea ice Copernicus Publications: E-Journals Arctic Pacific Geoscientific Model Development 11 10 4117 4137 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
Single-column models (SCMs) have been used as tools to help develop numerical weather prediction and global climate models for several decades. SCMs decouple small-scale processes from large-scale forcing, which allows the testing of physical parameterisations in a controlled environment with reduced computational cost. Typically, either the ocean, sea ice or atmosphere is fully modelled and assumptions have to be made regarding the boundary conditions from other subsystems, adding a potential source of error. Here, we present a fully coupled atmosphere–ocean SCM (AOSCM), which is based on the global climate model EC-Earth3. The initial configuration of the AOSCM consists of the Nucleus for European Modelling of the Ocean (NEMO3.6) (ocean), the Louvain-la-Neuve Sea Ice Model (LIM3) (sea ice), the Open Integrated Forecasting System (OpenIFS) cycle 40r1 (atmosphere), and OASIS3-MCT (coupler). Results from the AOSCM are presented at three locations: the tropical Atlantic, the midlatitude Pacific and the Arctic. At all three locations, in situ observations are available for comparison. We find that the coupled AOSCM can capture the observed atmospheric and oceanic evolution based on comparisons with buoy data, soundings and ship-based observations. The model evolution is sensitive to the initial conditions and forcing data imposed on the column. Comparing coupled and uncoupled configurations of the model can help disentangle model feedbacks. We demonstrate that the AOSCM in the current set-up is a valuable tool to advance our understanding in marine and polar boundary layer processes and the interactions between the individual components of the system (atmosphere, sea ice and ocean). |
format |
Text |
author |
Hartung, Kerstin Svensson, Gunilla Struthers, Hamish Deppenmeier, Anna-Lena Hazeleger, Wilco |
spellingShingle |
Hartung, Kerstin Svensson, Gunilla Struthers, Hamish Deppenmeier, Anna-Lena Hazeleger, Wilco An EC-Earth coupled atmosphere–ocean single-column model (AOSCM.v1_EC-Earth3) for studying coupled marine and polar processes |
author_facet |
Hartung, Kerstin Svensson, Gunilla Struthers, Hamish Deppenmeier, Anna-Lena Hazeleger, Wilco |
author_sort |
Hartung, Kerstin |
title |
An EC-Earth coupled atmosphere–ocean single-column model (AOSCM.v1_EC-Earth3) for studying coupled marine and polar processes |
title_short |
An EC-Earth coupled atmosphere–ocean single-column model (AOSCM.v1_EC-Earth3) for studying coupled marine and polar processes |
title_full |
An EC-Earth coupled atmosphere–ocean single-column model (AOSCM.v1_EC-Earth3) for studying coupled marine and polar processes |
title_fullStr |
An EC-Earth coupled atmosphere–ocean single-column model (AOSCM.v1_EC-Earth3) for studying coupled marine and polar processes |
title_full_unstemmed |
An EC-Earth coupled atmosphere–ocean single-column model (AOSCM.v1_EC-Earth3) for studying coupled marine and polar processes |
title_sort |
ec-earth coupled atmosphere–ocean single-column model (aoscm.v1_ec-earth3) for studying coupled marine and polar processes |
publishDate |
2019 |
url |
https://doi.org/10.5194/gmd-11-4117-2018 https://gmd.copernicus.org/articles/11/4117/2018/ |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
eISSN: 1991-9603 |
op_relation |
doi:10.5194/gmd-11-4117-2018 https://gmd.copernicus.org/articles/11/4117/2018/ |
op_doi |
https://doi.org/10.5194/gmd-11-4117-2018 |
container_title |
Geoscientific Model Development |
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11 |
container_issue |
10 |
container_start_page |
4117 |
op_container_end_page |
4137 |
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1766342055407124480 |