January 1, 2015 Journal article Open Access

Scafetta, Nicola; Mazzarella, Adriano

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  "@context": "https://schema.org/", 
  "@id": "https://doi.org/10.1155/2015/481834", 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Scafetta, Nicola"
    }, 
    {
      "@type": "Person", 
      "name": "Mazzarella, Adriano"
    }
  ], 
  "datePublished": "2015-01-01", 
  "description": "Here we study the Arctic and Antarctic sea-ice area records provided by the National Snow and Ice Data Center (NSIDC). These records reveal an opposite climatic behavior: since 1978 the Arctic sea-ice area index decreased, that is, the region has warmed, while the Antarctic sea-ice area index increased, that is, the region has cooled. During the last 7 years the Arctic sea-ice area has stabilized while the Antarctic sea-ice area has increased at a rate significantly higher than during the previous decades; that is, the sea-ice area of both regions has experienced a positive acceleration. This result is quite robust because it is confirmed by alternative temperature climate indices of the same regions. We also found that a significant 4-5-year natural oscillation characterizes the climate of these sea-ice polar areas. On the contrary, we found that the CMIP5 general circulation models have predicted significant warming in both polar sea regions and failed to reproduce the strong 4-5-year oscillation. Because the CMIP5 GCM simulations are inconsistent with the observations, we suggest that important natural mechanisms of climate change are missing in the models.", 
  "headline": "The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data", 
  "identifier": "https://doi.org/10.1155/2015/481834", 
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    "alternateName": "eng", 
    "name": "English"
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  "keywords": [], 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "The Arctic and Antarctic Sea-Ice Area Index Records versus Measured and Modeled Temperature Data", 
  "url": "https://www.openaccessrepository.it/record/48764"
}