What question did this study set out to answer?

The aim is to analyze circulation patterns in the southern hemisphere during spring 1987 and their relation to the Southern Oscillation Index.

February 5, 2026

Seasonal climate summary southern hemisphere (spring 1987): a season of sustained positive trend in the Southern Oscillation Index

Key Points

The aim is to analyze circulation patterns in the southern hemisphere during spring 1987 and their relation to the Southern Oscillation Index.
Analyzed southern hemisphere circulation from September to November 1987.
Focused on the Australian region and surrounding areas.
Discussed tropical and extratropical circulation anomalies.
Identified a sustained positive trend in the Southern Oscillation Index.
Noted a weakening of the El Niño-Southern Oscillation episode during the season.
Presented insights into the implications of these circulation changes.

Abstract

An analysis of the southern hemisphere circulation for the austral spring, September to November 1987, is presented. Emphasis is given to the Australian region, an area roughly bounded by Antarctica, the equator, the dateline and 90°E. Tropical and extratropical anomalies in the southern hemisphere circulation are discussed along with their relevance to the El Niño-Southern Oscillation (ENSO) episode which weakened during the season.

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Cite This Study

P.G. Nydam (Thu,) studied this question.

synapsesocial.com/papers/698435c9f1d9ada3c1fb5043 https://doi.org/https://doi.org/10.1071/es88022

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