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		<label>lattes: 4978912302419377 2 FreireCoel:2012:AnCiAt</label>
		<citationkey>FreireCoel:2012:AnCiAt</citationkey>
		<title>Análise da circulação atmosférica de altos níveis durante o outono dos episódios de La Niña de 1989 e de El Niño de 1993</title>
		<year>2012</year>
		<secondarytype>PRE CN</secondarytype>
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		<author>Freire, Julliana L. M.,</author>
		<author>Coelho, Caio Augusto dos Santos,</author>
		<group></group>
		<group>DOP-CPT-INPE-MCTI-GOV-BR</group>
		<affiliation></affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<electronicmailaddress></electronicmailaddress>
		<electronicmailaddress>caio@cptec.inpe.br</electronicmailaddress>
		<e-mailaddress>caio@cptec.inpe.br</e-mailaddress>
		<conferencename>Congresso Brasileiro de Meteorologia, 17 (CBMET).</conferencename>
		<booktitle>Anais</booktitle>
		<tertiarytype>Artigo</tertiarytype>
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		<contenttype>External Contribution</contenttype>
		<abstract>Este trabalho tem como objetivo analisar a circulação atmosférica de altos níveis durante o outono dos episódios de La Niña de 1989 e de El Niño de 1993. Foram analisadas as anomalias da temperatura da superfície do mar (TSM) e da circulação em altos níveis para os dois episódios, durante o trimestre marco, abril e maio (MAM). Através dos dados de reanálises do National Centers for Environment Prediction/National Center for Atmospheric Research (NCEP/NCAR). Os resultados obtidos indicam a existência de forte variabilidade na intensidade dos jatos subtropicais durante o episodio de El Niño e de La Niña. O jato apresentou-se mais intenso (enfraquecido) do que o normal durante o episódio de El Niño (La Niña). Notou-se ainda configurações de trens de ondas de Rossby forçadas devido as anomalias de TSM no Pacífico central e oeste, compostas por sucessões alternadas de ciclones e anticiclones. ABSTRACT: This work aims to analyze the atmospheric circulation of high levels during the fall of La Niña episodes of 1989 and 1993 El Niño. We analyzed the anomalies of sea surface temperature (SST) and circulation at high levels for the two episodes during the quarter in March, April and May (MAM). We have been used data from the reanalysis of the National Centers for Environment Prediction / National Center for Atmospheric Research (NCEP / NCAR). The results indicate that there is considerable variability in the intensity of the subtropical jet during the episode of El Niño and La Niña. The jet had become more intense (weak) than normal during the episode of El Niño (La Niña). It had been noted settings of Rossby wave trains were forced to due to SST anomalies in the central and western Pacific, composed of alternating succession of cyclones and anticyclones.</abstract>
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		<language>pt</language>
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