Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid

Detalhes bibliográficos
Autor(a) principal: Silva, Felipe das Neves Roque da
Data de Publicação: 2004
Outros Autores: França, José Ricardo Almeida
Tipo de documento: Artigo
Idioma: por
Título da fonte: Anuário do Instituto de Geociências (Online)
Texto Completo: https://revistas.ufrj.br/index.php/aigeo/article/view/6262
Resumo: The objective of this work is to evaluate climate changes caused by atmospheric CO2 concentration duplication. The LMD-Z atmosphere general circulation model (AGCM) was used (Laboratoire de Météorologie Dynamique - France). The model was integrated for a fifty years period and only the last forty years were used for analyses. This experiment have made two simulations: the first using the current CO2 concentration (control case) and the second using this concentration doubled (duplication case). Both were made with a variable spatial resolution with maximum of it centered in Rio de Janeiro. This way, there is a significant increase of model resolution in this region. To verify climate changes, anomaly fields generated by the model (duplication case minus control) were studied. It was possible to observe some characteristic effects of this type of experiment, such as great temperature increasing at surface in polar regions and in upper levels at low latitudes, cooling in stratosphere and intensification of hydrological cycle.
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spelling Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable gridImpacto da duplicação de CO2 no clima global simulado por um modelo de circulação geral da atmosferaThe objective of this work is to evaluate climate changes caused by atmospheric CO2 concentration duplication. The LMD-Z atmosphere general circulation model (AGCM) was used (Laboratoire de Météorologie Dynamique - France). The model was integrated for a fifty years period and only the last forty years were used for analyses. This experiment have made two simulations: the first using the current CO2 concentration (control case) and the second using this concentration doubled (duplication case). Both were made with a variable spatial resolution with maximum of it centered in Rio de Janeiro. This way, there is a significant increase of model resolution in this region. To verify climate changes, anomaly fields generated by the model (duplication case minus control) were studied. It was possible to observe some characteristic effects of this type of experiment, such as great temperature increasing at surface in polar regions and in upper levels at low latitudes, cooling in stratosphere and intensification of hydrological cycle.O objetivo deste trabalho é avaliar as mudanças no clima causadas pela duplicação da concentração de CO2 na atmosfera. Foi utilizado o modelo de circulação geral da atmosfera do LMD (Laboratório de Meteorologia Dinâmica - França), na versão LMD-Z. O modelo foi integrado por um período de cinqüenta anos. Para as análises só foram utilizados os últimos quarenta anos com o propósito de dar tempo suficiente para o modelo de atingir o equilíbrio. O modelo utilizou uma grade em resolução variável, com máxima resolução centrada no Rio de Janeiro. Foram feitas duas simulações: a primeira usando o nível atual da concentração de CO2 (caso controle) e a segunda usando esse nível dobrado (caso de duplicação). Para verificar as mudanças no clima foi feita uma análise dos campos de anomalia gerados pelo modelo. Esses campos são obtidos através da comparação entre o caso de duplicação de CO2 e a climatologia (caso de duplicação menos caso controle). Foi possível observar alguns efeitos característicos desse tipo de experimento, como um grande aquecimento à superfície nas regiões polares e na alta troposfera nas baixas latitudes, um resfriamento na estratosfera e uma intensificação do ciclo hidrológico.Universidade Federal do Rio de JaneiroSilva, Felipe das Neves Roque daFrança, José Ricardo Almeida2004-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufrj.br/index.php/aigeo/article/view/626210.11137/2004_0_27-52Anuário do Instituto de Geociências; Vol 27 (2004); 27-52Anuário do Instituto de Geociências; Vol 27 (2004); 27-521982-39080101-9759reponame:Anuário do Instituto de Geociências (Online)instname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJporhttps://revistas.ufrj.br/index.php/aigeo/article/view/6262/4859Copyright (c) 2004 Anuário do Instituto de Geociênciashttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2022-10-13T17:13:58Zoai:www.revistas.ufrj.br:article/6262Revistahttps://revistas.ufrj.br/index.php/aigeo/indexPUBhttps://revistas.ufrj.br/index.php/aigeo/oaianuario@igeo.ufrj.br||1982-39080101-9759opendoar:2022-10-13T17:13:58Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid
Impacto da duplicação de CO2 no clima global simulado por um modelo de circulação geral da atmosfera
title Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid
spellingShingle Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid
Silva, Felipe das Neves Roque da
title_short Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid
title_full Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid
title_fullStr Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid
title_full_unstemmed Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid
title_sort Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid
author Silva, Felipe das Neves Roque da
author_facet Silva, Felipe das Neves Roque da
França, José Ricardo Almeida
author_role author
author2 França, José Ricardo Almeida
author2_role author
dc.contributor.none.fl_str_mv
dc.contributor.author.fl_str_mv Silva, Felipe das Neves Roque da
França, José Ricardo Almeida
dc.subject.none.fl_str_mv
description The objective of this work is to evaluate climate changes caused by atmospheric CO2 concentration duplication. The LMD-Z atmosphere general circulation model (AGCM) was used (Laboratoire de Météorologie Dynamique - France). The model was integrated for a fifty years period and only the last forty years were used for analyses. This experiment have made two simulations: the first using the current CO2 concentration (control case) and the second using this concentration doubled (duplication case). Both were made with a variable spatial resolution with maximum of it centered in Rio de Janeiro. This way, there is a significant increase of model resolution in this region. To verify climate changes, anomaly fields generated by the model (duplication case minus control) were studied. It was possible to observe some characteristic effects of this type of experiment, such as great temperature increasing at surface in polar regions and in upper levels at low latitudes, cooling in stratosphere and intensification of hydrological cycle.
publishDate 2004
dc.date.none.fl_str_mv 2004-01-01
dc.type.none.fl_str_mv

dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
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dc.identifier.uri.fl_str_mv https://revistas.ufrj.br/index.php/aigeo/article/view/6262
10.11137/2004_0_27-52
url https://revistas.ufrj.br/index.php/aigeo/article/view/6262
identifier_str_mv 10.11137/2004_0_27-52
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufrj.br/index.php/aigeo/article/view/6262/4859
dc.rights.driver.fl_str_mv Copyright (c) 2004 Anuário do Instituto de Geociências
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2004 Anuário do Instituto de Geociências
http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
dc.source.none.fl_str_mv Anuário do Instituto de Geociências; Vol 27 (2004); 27-52
Anuário do Instituto de Geociências; Vol 27 (2004); 27-52
1982-3908
0101-9759
reponame:Anuário do Instituto de Geociências (Online)
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Anuário do Instituto de Geociências (Online)
collection Anuário do Instituto de Geociências (Online)
repository.name.fl_str_mv Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv anuario@igeo.ufrj.br||
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