1. Identificação | |
Tipo de Referência | Artigo em Evento (Conference Proceedings) |
Site | mtc-m21b.sid.inpe.br |
Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identificador | 8JMKD3MGP3W34P/3QG5AU2 |
Repositório | sid.inpe.br/mtc-m21b/2018/02.05.13.30 |
Repositório de Metadados | sid.inpe.br/mtc-m21b/2018/02.05.13.30.55 |
Última Atualização dos Metadados | 2019:01.14.17.05.23 (UTC) administrator |
Chave Secundária | INPE--PRE/ |
Chave de Citação | EidtCava:2018:RaVaOv |
Título | Rainfall variability over South America associated with SST anomalies in South Pacific and South Atlantic oceans |
Ano | 2018 |
Data de Acesso | 12 maio 2024 |
Tipo Secundário | PRE CI |
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2. Contextualização | |
Autor | 1 Eidt, Renata Tatsch 2 Cavalcanti, Iracema Fonseca de Albuquerque |
Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JHDE |
Grupo | 1 MET-MET-SESPG-INPE-MCTIC-GOV-BR |
Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) |
Endereço de e-Mail do Autor | 1 renata.eidt@gmail.com |
Nome do Evento | International Conference for Southern Hemisphere Meteorology and Oceanography, 12 (AMOS-ICSHMO) |
Localização do Evento | Sydney, Australias |
Data | 05-09 feb. |
Tipo Terciário | Poster |
Histórico (UTC) | 2018-02-05 13:30:55 :: simone -> administrator :: 2019-01-14 17:05:23 :: administrator -> simone :: 2018 |
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3. Conteúdo e estrutura | |
É a matriz ou uma cópia? | é a matriz |
Estágio do Conteúdo | concluido |
Transferível | 1 |
Tipo do Conteúdo | External Contribution |
Resumo | Sea surface temperature (SST) anomalies influence atmospheric circulation and contribute to changes in weather and climate around the globe. It is already known that precipitation over continental areas can be associated with SST variability in the tropics. However, the importance of extratropical oceans is still not completely understood. The aim of this study is to investigate the influence of extratropical SST anomalies to rainfall variability, focusing on South America, and the oceanic and atmospheric processes involved. The period from 1981 to 2010 was studied in a monthly scale, using SST and precipitation data obtained from NOAA datasets (ERSST-v5 and GPCP, respectively), and atmospheric data from CFSR reanalysis. Singular Value Decomposition (SVD) showed connectivity between SST variations in extratropical oceans and rainfall variability over southeastern South America, an important agricultural area. Extreme wet and dry events over this region were identified using the Standardized Precipitation Index (SPI), to a further evaluation of the oceanic conditions associated with these episodes. Empirical Orthogonal Functions (EOF) and SVD were applied for the identification of principal modes of variability. Dipoles of SST were identified in South Pacific and South Atlantic oceans. Two areas of opposite signs were observed in western (~25°S) and southern (~55°S) South Pacific Ocean, regions of atmospheric blocking and the South Pacific Convergence Zone (SPCZ). Positive SST anomalies in the southern area are related to precipitation increase over southeastern South America. The southern oceanic area is also associated with a dipole of precipitation over Southeast Asia and central Pacific Ocean. A dipole signal was also noticed in western South Atlantic Ocean, mainly from September to December, varying in position and intensity near South America. The results obtained showed that extratropical oceans have an important role for precipitation variability in remote regions, and the oceanic areas identified can contribute to climate monitoring. |
Área | MET |
Arranjo | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > MET > Rainfall variability over... |
Conteúdo da Pasta doc | não têm arquivos |
Conteúdo da Pasta source | não têm arquivos |
Conteúdo da Pasta agreement | |
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4. Condições de acesso e uso | |
Idioma | en |
Grupo de Usuários | simone |
Visibilidade | shown |
Permissão de Leitura | allow from all |
Permissão de Atualização | não transferida |
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5. Fontes relacionadas | |
Unidades Imediatamente Superiores | 8JMKD3MGPCW/3F35TRS |
Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 |
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6. Notas | |
Campos Vazios | archivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark type url versiontype volume |
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7. Controle da descrição | |
e-Mail (login) | simone |
atualizar | |
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