{"id":335392,"date":"2024-07-03T07:58:45","date_gmt":"2024-07-03T05:58:45","guid":{"rendered":"https:\/\/climatescience.press\/?p=335392"},"modified":"2024-07-03T07:58:47","modified_gmt":"2024-07-03T05:58:47","slug":"new-study-1979-2013-southern-ocean-and-southeast-pacific-cooling-driven-bywarming","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=335392","title":{"rendered":"New Study: 1979-2013 Southern Ocean And Southeast Pacific Cooling Driven By\u2026Warming?"},"content":{"rendered":"\n
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From NoTricksZone<\/a><\/p>\n\n\n\n

By\u00a0Kenneth Richard<\/a><\/em><\/p>\n\n\n\n

Scientists attempt to explain why approximately one-third of the global ocean\u2019s sea surface temperatures cooled since the late 1970s.<\/strong><\/p>\n\n\n\n

The 50-70\u00b0S Southern Ocean and 160\u00b0W to 80\u00b0W southeastern Pacific cooled by about -0.35\u00b0C (-0.117\u00b0C per decade) from 1979-2013 (Yao et al., 2024<\/a><\/strong>). (The cooling also continued to 2019, but the authors chose to use 2013 as their end point.)<\/p>\n\n\n\n

In the paper the scientists expend a great deal of effort to \u201cargue\u201d that warming in the North Atlantic forced 35+ years of cooling from 50 to 70\u00b0S and 160\u00b0W to 80\u00b0W.<\/p>\n\n\n\n

\u201cWe argue that North Atlantic warming is decisive for driving the observed multidecadal SST cooling of the southeastern Pacific sector.\u201d<\/em><\/p>\n\n\n\n

However, they simultaneously acknowledge both (a) internal variability and (b) increases in cloud cover leading to reductions in downwelling shortwave radiation can explain the cooling in this region. These would appear to be much more plausible explanations for multi-decadal cooling than the warming-forces-cooling mechanism they propose.<\/p>\n\n\n\n

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Image Source:\u00a0Yao et al., 2024<\/a><\/strong><\/figcaption><\/figure>\n\n\n\n
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