Impact of CO2 doubling in the global climate simulated by a atmosphere general circulation model with variable grid
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Data de Publicação: | 2004 |
Outros Autores: | |
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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Anuário do Instituto de Geociências (Online) |
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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 |
status_str |
publishedVersion |
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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1797053538566668288 |