Abstract

Estimations of couplings of winter temperature in the Antarctic Peninsula region with tropical temperature anomalies indicate long term changes in the intensity of tropical influences. These changes are associated with the stability of the meridional wavetrain of stationary planetary waves, along which tropical disturbances in the Pacific Ocean sector propagate, affecting the climate of the Antarctic Peninsula. The period of the most significant tropical effects is the 1980s and the 1990s, and, at that time, the most rapid winter warming at Faraday/Vernadsky station was observed. One of the components of the winter temperature change on the peninsula is a 16year periodicity with amplitude of about 1oС that also contributes to regional climate change.

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