Science Alert June 30, 2020
An international team of researchers (New Zealand, USA – Ohio University, Rutgers University, UK) used an ensemble of climate model experiments to show that the recent warming lies within the upper bounds of the simulated range of natural variability. According to the study the warming resulted from a strong cyclonic anomaly in the Weddell Sea caused by increasing sea surface temperatures in the western tropical Pacific. This circulation advected warm and moist air from the South Atlantic into the Antarctic interior. The results underscore the intimate linkage of interior Antarctic climate to tropical variability. The study showed that atmospheric internal variability can induce extreme regional climate change over the Antarctic interior, which has masked any anthropogenic warming signal there during the twenty-first century…read more. TECHNICAL ARTICLE
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