A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1)
A simplified model, representing the dynamics of marine organic particles in a given size range experiencing coagulation and fragmentation reactions, is developed. The framework is based on a discrete size spectrum on which reactions act to exchange properties between different particle sizes. The r...
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ftconicet:oai:ri.conicet.gov.ar:11336/142276 2023-10-09T21:51:02+02:00 A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1) Gremion, Gwenaëlle Nadeau, Louis Philippe Dufresne, Christiane Schloss, Irene Ruth Archambault, Philippe Dumont, Dany application/pdf http://hdl.handle.net/11336/142276 eng eng European Geosciences Union info:eu-repo/semantics/altIdentifier/url/https://gmd.copernicus.org/articles/14/4535/2021/ info:eu-repo/semantics/altIdentifier/doi/10.5194/gmd-14-4535-2021 http://hdl.handle.net/11336/142276 Gremion, Gwenaëlle; Nadeau, Louis Philippe; Dufresne, Christiane; Schloss, Irene Ruth; Archambault, Philippe; et al.; A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1); European Geosciences Union; Geoscientific Model Development; 14; 7; 7-2021; 4535-4554 1991-9603 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ Modelling Detritus Fragmentation Coagulation https://purl.org/becyt/ford/1.7 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.5194/gmd-14-4535-2021 2023-09-24T20:08:01Z A simplified model, representing the dynamics of marine organic particles in a given size range experiencing coagulation and fragmentation reactions, is developed. The framework is based on a discrete size spectrum on which reactions act to exchange properties between different particle sizes. The reactions are prescribed according to triplet interactions. Coagulation combines two particle sizes to yield a third one, while fragmentation breaks a given particle size into two (i.e. the inverse of the coagulation reaction). The complete set of reactions is given by all the permutations of two particle sizes associated with a third one. Since, by design, some reactions yield particle sizes that are outside the resolved size range of the spectrum, a closure is developed to take into account this unresolved range and satisfy global constraints such as mass conservation. In order to minimize the number of tracers required to apply this model to an ocean general circulation model, focus is placed on the robustness of the model to the particle size resolution. Thus, numerical experiments were designed to study the dependence of the results on (i) the number of particle size bins used to discretize a given size range (i.e. the resolution) and (ii) the type of discretization (i.e. linear vs. nonlinear). The results demonstrate that in a linearly size-discretized configuration, the model is independent of the resolution. However, important biases are observed in a nonlinear discretization. A first attempt to mitigate the effect of nonlinearity of the size spectrum is then presented and shows significant improvement in reducing the observed biases. Fil: Gremion, Gwenaëlle. Institut des Sciences de la Mer de Rimouski; Canadá Fil: Nadeau, Louis Philippe. Institut des Sciences de la Mer de Rimouski; Canadá Fil: Dufresne, Christiane. Institut des Sciences de la Mer de Rimouski; Canadá Fil: Schloss, Irene Ruth. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto ... Article in Journal/Newspaper Dirección Nacional del Antártico CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Christiane ENVELOPE(70.233,70.233,-49.350,-49.350) Geoscientific Model Development 14 7 4535 4554 |
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Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Modelling Detritus Fragmentation Coagulation https://purl.org/becyt/ford/1.7 https://purl.org/becyt/ford/1 |
spellingShingle |
Modelling Detritus Fragmentation Coagulation https://purl.org/becyt/ford/1.7 https://purl.org/becyt/ford/1 Gremion, Gwenaëlle Nadeau, Louis Philippe Dufresne, Christiane Schloss, Irene Ruth Archambault, Philippe Dumont, Dany A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1) |
topic_facet |
Modelling Detritus Fragmentation Coagulation https://purl.org/becyt/ford/1.7 https://purl.org/becyt/ford/1 |
description |
A simplified model, representing the dynamics of marine organic particles in a given size range experiencing coagulation and fragmentation reactions, is developed. The framework is based on a discrete size spectrum on which reactions act to exchange properties between different particle sizes. The reactions are prescribed according to triplet interactions. Coagulation combines two particle sizes to yield a third one, while fragmentation breaks a given particle size into two (i.e. the inverse of the coagulation reaction). The complete set of reactions is given by all the permutations of two particle sizes associated with a third one. Since, by design, some reactions yield particle sizes that are outside the resolved size range of the spectrum, a closure is developed to take into account this unresolved range and satisfy global constraints such as mass conservation. In order to minimize the number of tracers required to apply this model to an ocean general circulation model, focus is placed on the robustness of the model to the particle size resolution. Thus, numerical experiments were designed to study the dependence of the results on (i) the number of particle size bins used to discretize a given size range (i.e. the resolution) and (ii) the type of discretization (i.e. linear vs. nonlinear). The results demonstrate that in a linearly size-discretized configuration, the model is independent of the resolution. However, important biases are observed in a nonlinear discretization. A first attempt to mitigate the effect of nonlinearity of the size spectrum is then presented and shows significant improvement in reducing the observed biases. Fil: Gremion, Gwenaëlle. Institut des Sciences de la Mer de Rimouski; Canadá Fil: Nadeau, Louis Philippe. Institut des Sciences de la Mer de Rimouski; Canadá Fil: Dufresne, Christiane. Institut des Sciences de la Mer de Rimouski; Canadá Fil: Schloss, Irene Ruth. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto ... |
format |
Article in Journal/Newspaper |
author |
Gremion, Gwenaëlle Nadeau, Louis Philippe Dufresne, Christiane Schloss, Irene Ruth Archambault, Philippe Dumont, Dany |
author_facet |
Gremion, Gwenaëlle Nadeau, Louis Philippe Dufresne, Christiane Schloss, Irene Ruth Archambault, Philippe Dumont, Dany |
author_sort |
Gremion, Gwenaëlle |
title |
A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1) |
title_short |
A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1) |
title_full |
A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1) |
title_fullStr |
A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1) |
title_full_unstemmed |
A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1) |
title_sort |
discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (coagfrag v.1) |
publisher |
European Geosciences Union |
url |
http://hdl.handle.net/11336/142276 |
long_lat |
ENVELOPE(70.233,70.233,-49.350,-49.350) |
geographic |
Christiane |
geographic_facet |
Christiane |
genre |
Dirección Nacional del Antártico |
genre_facet |
Dirección Nacional del Antártico |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://gmd.copernicus.org/articles/14/4535/2021/ info:eu-repo/semantics/altIdentifier/doi/10.5194/gmd-14-4535-2021 http://hdl.handle.net/11336/142276 Gremion, Gwenaëlle; Nadeau, Louis Philippe; Dufresne, Christiane; Schloss, Irene Ruth; Archambault, Philippe; et al.; A discrete interaction numerical model for coagulation and fragmentation of marine detritic particulate matter (Coagfrag v.1); European Geosciences Union; Geoscientific Model Development; 14; 7; 7-2021; 4535-4554 1991-9603 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_doi |
https://doi.org/10.5194/gmd-14-4535-2021 |
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Geoscientific Model Development |
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14 |
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7 |
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4535 |
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4554 |
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