A non-intrusive, multi-scale, and flexible coupling interface in WRF
The Weather Research and Forecasting (WRF) model has been widely used for various applications, especially for solving mesoscale atmospheric dynamics. Its high-order numerical schemes and nesting capability enable high spatial resolution. However, a growing number of applications are demanding more...
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ftcopernicus:oai:publications.copernicus.org:gmdd122077 2024-09-30T14:43:11+00:00 A non-intrusive, multi-scale, and flexible coupling interface in WRF Masson, Sébastien Jullien, Swen Maisonnave, Eric Gill, David Samson, Guillaume Corre, Mathieu Renault, Lionel 2024-09-05 application/pdf https://doi.org/10.5194/gmd-2024-140 https://gmd.copernicus.org/preprints/gmd-2024-140/ eng eng doi:10.5194/gmd-2024-140 https://gmd.copernicus.org/preprints/gmd-2024-140/ eISSN: 1991-9603 Text 2024 ftcopernicus https://doi.org/10.5194/gmd-2024-140 2024-09-10T23:57:28Z The Weather Research and Forecasting (WRF) model has been widely used for various applications, especially for solving mesoscale atmospheric dynamics. Its high-order numerical schemes and nesting capability enable high spatial resolution. However, a growing number of applications are demanding more realistic simulations through the incorporation of coupling with new model compartments and an increase in the complexity of the processes considered in the model. (e.g., ocean, surface gravity wave, land-surface, chemistry.). The present paper details the development and the functionalities of the coupling interface we implemented in WRF. It uses the Ocean-Atmosphere-Sea-Ice-Soil – Model Coupling Toolkit (OASIS3-MCT) coupler, which has the advantage of being non-intrusive, efficient, and very flexible to use. OASIS3-MCT has already been implemented in many climate and regional models. This coupling interface is designed with the following baselines: (1) it is structured with a 2-level design through 2 modules: a general coupling module, and a coupler-specific module, allowing to easily add other couplers if required, (2) variables exchange, coupling frequency, and any potential time and grid transformations are controlled through an external text file, offering great flexibility, (3) the concepts of “external domains” and “coupling mask” are introduced to facilitate the exchange of fields to/from multiple sources (different models, fields from different models/grids/zooms.). Finally, two examples of applications of ocean-atmosphere coupling are proposed. The first is related to the impact of ocean surface current feedback to the atmospheric boundary layer, and the second concerns the coupling of surface gravity waves with the atmospheric surface layer. Text Sea ice Copernicus Publications: E-Journals |
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Copernicus Publications: E-Journals |
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English |
description |
The Weather Research and Forecasting (WRF) model has been widely used for various applications, especially for solving mesoscale atmospheric dynamics. Its high-order numerical schemes and nesting capability enable high spatial resolution. However, a growing number of applications are demanding more realistic simulations through the incorporation of coupling with new model compartments and an increase in the complexity of the processes considered in the model. (e.g., ocean, surface gravity wave, land-surface, chemistry.). The present paper details the development and the functionalities of the coupling interface we implemented in WRF. It uses the Ocean-Atmosphere-Sea-Ice-Soil – Model Coupling Toolkit (OASIS3-MCT) coupler, which has the advantage of being non-intrusive, efficient, and very flexible to use. OASIS3-MCT has already been implemented in many climate and regional models. This coupling interface is designed with the following baselines: (1) it is structured with a 2-level design through 2 modules: a general coupling module, and a coupler-specific module, allowing to easily add other couplers if required, (2) variables exchange, coupling frequency, and any potential time and grid transformations are controlled through an external text file, offering great flexibility, (3) the concepts of “external domains” and “coupling mask” are introduced to facilitate the exchange of fields to/from multiple sources (different models, fields from different models/grids/zooms.). Finally, two examples of applications of ocean-atmosphere coupling are proposed. The first is related to the impact of ocean surface current feedback to the atmospheric boundary layer, and the second concerns the coupling of surface gravity waves with the atmospheric surface layer. |
format |
Text |
author |
Masson, Sébastien Jullien, Swen Maisonnave, Eric Gill, David Samson, Guillaume Corre, Mathieu Renault, Lionel |
spellingShingle |
Masson, Sébastien Jullien, Swen Maisonnave, Eric Gill, David Samson, Guillaume Corre, Mathieu Renault, Lionel A non-intrusive, multi-scale, and flexible coupling interface in WRF |
author_facet |
Masson, Sébastien Jullien, Swen Maisonnave, Eric Gill, David Samson, Guillaume Corre, Mathieu Renault, Lionel |
author_sort |
Masson, Sébastien |
title |
A non-intrusive, multi-scale, and flexible coupling interface in WRF |
title_short |
A non-intrusive, multi-scale, and flexible coupling interface in WRF |
title_full |
A non-intrusive, multi-scale, and flexible coupling interface in WRF |
title_fullStr |
A non-intrusive, multi-scale, and flexible coupling interface in WRF |
title_full_unstemmed |
A non-intrusive, multi-scale, and flexible coupling interface in WRF |
title_sort |
non-intrusive, multi-scale, and flexible coupling interface in wrf |
publishDate |
2024 |
url |
https://doi.org/10.5194/gmd-2024-140 https://gmd.copernicus.org/preprints/gmd-2024-140/ |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
eISSN: 1991-9603 |
op_relation |
doi:10.5194/gmd-2024-140 https://gmd.copernicus.org/preprints/gmd-2024-140/ |
op_doi |
https://doi.org/10.5194/gmd-2024-140 |
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1811645099273093120 |