Viticultural climate variability at Santana do Livramento, Campanha Gaúcha, Brazil

associations with the El Niño-Southern Oscillation

Authors

  • Pedro Luís Panisson Kaltbach Lemos Universidade Federal de Pelotas - UFPel, Pelotas/RS - Brasil
  • Suélen Braga de Andrade Kaltbach Universidade Federal de Pelotas - UFPel, Pelotas/RS - Brasil
  • Vagner Brasil Costa Universidade Federal de Pelotas - UFPel, Pelotas/RS - Brasil
  • Fabrício Domingues Almadén - Miolo Wine Group, Santana do Livramento/RS - Brasil
  • Flávio Gilberto Herter Universidade Federal de Pelotas - UFPel, Pelotas/RS - Brasil

DOI:

https://doi.org/10.15536/thema.V23.2024.545-557.3770

Keywords:

La Niña, Campanha Gaúcha, Vitis vinifera, Bioclimatic indexes, Geoviticulture multicriteria climatic classification system

Abstract

Meteorological conditions are fundamental factors in the development of viticulture anywhere in the world. Considering this, the viticultural climate and climate variability of Santana do Livramento, Campanha Gaúcha, Brazil, was characterized based on the three bioclimatic indices defined by the Geoviticulture Multicriteria Climatic Classification (MCC) System – cool night index (CI), heliothermal index (HI) and dryness index (DI) – in addition to a modified dryness index (DImodified). The observed climate variability was correlated with the three phases of the El Niño-Southern Oscillation (ENSO) – namely, El Niño, La Niña and neutral phase. El Niño events presented typically higher DI and DImodified values and lower HI values. La Niña events showed typically the opposite pattern, lower DI and DImodified values and higher HI values. Neutral conditions were characterized mostly by intermediate values for DI and DImodified as well as HI but the highest amplitude of CI values. The DImodified followed by DI and HI were the indexes presenting the highest correlation with the polarization of ENSO phases.

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Author Biographies

Pedro Luís Panisson Kaltbach Lemos, Universidade Federal de Pelotas - UFPel, Pelotas/RS - Brasil

Suélen Braga de Andrade Kaltbach, Universidade Federal de Pelotas - UFPel, Pelotas/RS - Brasil

Vagner Brasil Costa, Universidade Federal de Pelotas - UFPel, Pelotas/RS - Brasil

Fabrício Domingues, Almadén - Miolo Wine Group, Santana do Livramento/RS - Brasil

Flávio Gilberto Herter, Universidade Federal de Pelotas - UFPel, Pelotas/RS - Brasil

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Published

2024-08-02

How to Cite

LEMOS, P. L. P. K.; KALTBACH, S. B. de A.; COSTA, V. B.; DOMINGUES, F.; HERTER, F. G. Viticultural climate variability at Santana do Livramento, Campanha Gaúcha, Brazil: associations with the El Niño-Southern Oscillation. Revista Thema, Pelotas, v. 23, n. 2, p. 545–557, 2024. DOI: 10.15536/thema.V23.2024.545-557.3770. Disponível em: https://periodicos.ifsul.edu.br/index.php/thema/article/view/3770. Acesso em: 22 nov. 2024.

Issue

Section

Ciências Agrárias

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