Microphysical structure of clouds in different ecosystems of South America
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
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/6796 |
Resumo: | Clouds directly affect meteorological conditions of the planet, by interacting with electromagnetic radiation from the sun, the earth's surface and the atmosphere. Each cloud type interacts in a particular way, being extremely important that the total set of clouds at any location is well represented in atmospheric models, in order to generate more accurate results. The purpose of this paper is to initiate a characterization of cloud types as a function of their microphysical properties and evaluate the dependence on ecosystem and synoptic condition. The data were obtained through remote sensing, using the MODIS sensor and the variables: cloud particle effective radius, optical thickness, pressure and temperature of the cloud top. Several forms of distributions were found for six different ecosystems for the four seasons. It was noted that narrow and concentrated effective radius spectra are linked to deep convection clouds, while broader distributions can be usually associated to cold frontal systems. The amount of events analyzed was not enough to show clear patterns, although the results can lead to other directions in a future and more focused work. |
id |
UFRJ-21_df524fadd93571768c674f847b4b0409 |
---|---|
oai_identifier_str |
oai:www.revistas.ufrj.br:article/6796 |
network_acronym_str |
UFRJ-21 |
network_name_str |
Anuário do Instituto de Geociências (Online) |
repository_id_str |
|
spelling |
Microphysical structure of clouds in different ecosystems of South AmericaEstrutura microfísica das nuvens em diferentes ecossistemas da América do SulClouds directly affect meteorological conditions of the planet, by interacting with electromagnetic radiation from the sun, the earth's surface and the atmosphere. Each cloud type interacts in a particular way, being extremely important that the total set of clouds at any location is well represented in atmospheric models, in order to generate more accurate results. The purpose of this paper is to initiate a characterization of cloud types as a function of their microphysical properties and evaluate the dependence on ecosystem and synoptic condition. The data were obtained through remote sensing, using the MODIS sensor and the variables: cloud particle effective radius, optical thickness, pressure and temperature of the cloud top. Several forms of distributions were found for six different ecosystems for the four seasons. It was noted that narrow and concentrated effective radius spectra are linked to deep convection clouds, while broader distributions can be usually associated to cold frontal systems. The amount of events analyzed was not enough to show clear patterns, although the results can lead to other directions in a future and more focused work.As nuvens afetam diretamente as condições meteorológicas do planeta, interagindo com a radiação eletromagnética proveniente do sol, da superfície terrestre e da atmosfera. Cada tipo de nuvem interage de maneira particular, sendo de extrema importância que o conjunto de nuvens em um determinado local esteja bem representado nos modelos atmosféricos para gerar resultados mais precisos. Neste trabalho, o objetivo é iniciar uma caracterização dos tipos de nuvens em função de suas propriedades microfísicas e avaliar a dependência no tipo de ecossistema e condição sinótica. Os dados foram obtidos através de sensoriamento remoto, utilizando as seguintes variáveis do sensor MODIS: raio efetivo da partícula de nuvem, espessura óptica, temperatura e pressão no topo da nuvem. Foram observados diversos tipos de distribuições das variáveis acima em seis ecossistemas diferentes, nas quatro estações do ano. Notou-se que os espectros de raio efetivo mais estreitos e concentrados são ligados a nuvens de convecção profunda, enquanto as distribuições mais espalhadas são comumente associadas com sistemas frontais. A quantidade de eventos analisados ainda foi insuficiente para mostrar padrões claros, porém, já pode indicar caminhos a serem seguidos em futuros trabalhos, no que diz respeito a metodologia e verificação das tendências apresentadas.Universidade Federal do Rio de Janeiro2009-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufrj.br/index.php/aigeo/article/view/679610.11137/2009_2_33-41Anuário do Instituto de Geociências; Vol 32, No 2 (2009); 33-41Anuário do Instituto de Geociências; Vol 32, No 2 (2009); 33-411982-39080101-9759reponame:Anuário do Instituto de Geociências (Online)instname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJporhttps://revistas.ufrj.br/index.php/aigeo/article/view/6796/5393Copyright (c) 2009 Anuário do Instituto de Geociênciashttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessDuarte, Bruno MunizFrança, José Ricardo de Almeida2017-01-23T21:50:19Zoai:www.revistas.ufrj.br:article/6796Revistahttps://revistas.ufrj.br/index.php/aigeo/indexPUBhttps://revistas.ufrj.br/index.php/aigeo/oaianuario@igeo.ufrj.br||1982-39080101-9759opendoar:2017-01-23T21:50:19Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)false |
dc.title.none.fl_str_mv |
Microphysical structure of clouds in different ecosystems of South America Estrutura microfísica das nuvens em diferentes ecossistemas da América do Sul |
title |
Microphysical structure of clouds in different ecosystems of South America |
spellingShingle |
Microphysical structure of clouds in different ecosystems of South America Duarte, Bruno Muniz |
title_short |
Microphysical structure of clouds in different ecosystems of South America |
title_full |
Microphysical structure of clouds in different ecosystems of South America |
title_fullStr |
Microphysical structure of clouds in different ecosystems of South America |
title_full_unstemmed |
Microphysical structure of clouds in different ecosystems of South America |
title_sort |
Microphysical structure of clouds in different ecosystems of South America |
author |
Duarte, Bruno Muniz |
author_facet |
Duarte, Bruno Muniz França, José Ricardo de Almeida |
author_role |
author |
author2 |
França, José Ricardo de Almeida |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Duarte, Bruno Muniz França, José Ricardo de Almeida |
description |
Clouds directly affect meteorological conditions of the planet, by interacting with electromagnetic radiation from the sun, the earth's surface and the atmosphere. Each cloud type interacts in a particular way, being extremely important that the total set of clouds at any location is well represented in atmospheric models, in order to generate more accurate results. The purpose of this paper is to initiate a characterization of cloud types as a function of their microphysical properties and evaluate the dependence on ecosystem and synoptic condition. The data were obtained through remote sensing, using the MODIS sensor and the variables: cloud particle effective radius, optical thickness, pressure and temperature of the cloud top. Several forms of distributions were found for six different ecosystems for the four seasons. It was noted that narrow and concentrated effective radius spectra are linked to deep convection clouds, while broader distributions can be usually associated to cold frontal systems. The amount of events analyzed was not enough to show clear patterns, although the results can lead to other directions in a future and more focused work. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-12-01 |
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/6796 10.11137/2009_2_33-41 |
url |
https://revistas.ufrj.br/index.php/aigeo/article/view/6796 |
identifier_str_mv |
10.11137/2009_2_33-41 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufrj.br/index.php/aigeo/article/view/6796/5393 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2009 Anuário do Instituto de Geociências http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2009 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 32, No 2 (2009); 33-41 Anuário do Instituto de Geociências; Vol 32, No 2 (2009); 33-41 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|| |
_version_ |
1797053539783016448 |