What question did this study set out to answer?

To analyze the atmospheric circulation of the southern hemisphere during summer 1986-87 and its relation to ENSO.

February 5, 2026

Seasonal climate summary southern hemisphere (summer 1986-87): a season of characteristic ENSO anomalies and low planetary wave numbers

Puntos clave

To analyze the atmospheric circulation of the southern hemisphere during summer 1986-87 and its relation to ENSO.
Focused on the Australian region within specific geographical boundaries.
Examined seasonal circulation patterns from December 1986 to February 1987.
Identified extratropical anomalies linked to ENSO conditions.
Noted significant atmospheric circulation anomalies during the summer of 1986-87.
Described a weakening of mid-latitude westerlies in the region due to the influence of ENSO.

Resumen

An analysis of the southern hemisphere circulation for the summer months of December 1986 to February 1987, inclusive, is undertaken. Emphasis is given to the Australian region; an area roughly bounded by Antarctica, the equator, the dateline and 90°E. Extratropical anomalies in the atmospheric circulation which developed following the establishment of the tropical El Nino Southern Oscillation (ENSO) related anomalies are discussed, in particular, the ENSO-induced weakening of the mid-latitude westerlies in the Australian region.

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Cite This Study

Gaffney et al. (Mon,) studied this question.

synapsesocial.com/papers/698435c9f1d9ada3c1fb4ed9 https://doi.org/https://doi.org/10.1071/es87007

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