Influence of the PDO and AMO patterns on the air temperature in Brazil during the austral winter

Authors

DOI:

https://doi.org/10.5902/2179460X55312

Keywords:

Climatic variability, SST, Teleconnections, PDO, AMO

Abstract

Anomalies of sea surface temperature (SST) favor the emergence of climatic variability modes, which can be transferred by atmospheric teleconnections to different regions of the globe. The present study sought to identify influences of the Pacific Decadal Oscillation (PDO) and the Atlantic Multidecadal Oscillation (AMO) on the air temperature in Brazil, during the period from 1901 to 2012. It was found that the negative periods of the PDO and AMO (1901-2012) have a greater influence on the South and North regions of Brazil. When these modes of variability are in opposite phases (1901-1927), they mainly interfere in the southern region of Brazil. On the other hand, when the PDO is in the negative phase and the AMO is moving from the positive to the negative phase (1944-1975), the northern region of Brazil is more influenced.

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Author Biographies

Douglas da Silva Lindemann, Universidade Federal de Pelotas, Pelotas, RS

Graduado em Meteorologia pela Universidade Federal de Pelotas (UFPEL), Mestre em Meteorologia Agrícola pela Universidade Federal de Viçosa (UFV) e Doutor em Meteorologia Aplicada pela UFV, atualmente é bolsista de pós-doutorado no Programa de Pós-Graduação em Meteorologia da UFPEL.

Rose Ane Pereira de Freitas, Universidade Federal de Pelotas, Pelotas, RS

Graduada em Meteorologia pela Universidade Federal de Pelotas (UFPEL), Mestre em Meteorologia Agrícola pela Universidade Federal de Viçosa (UFV) e Doutora em Meteorologia pela Universidade Federal de Santa Maria (UFSM). Atualmente, é Professora Substituta Adjunta da Faculdade de Meteorologia na UFPEL.

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Published

2020-09-25

How to Cite

Lindemann, D. da S., & Freitas, R. A. P. de. (2020). Influence of the PDO and AMO patterns on the air temperature in Brazil during the austral winter. Ciência E Natura, 42, e11. https://doi.org/10.5902/2179460X55312

Issue

Vol. 42 (2020): Special : II ENCONTRO DE METEOROLOGIA DO ESTADO DE SC

Section

Climate Variability Climate and Ocean

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