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The study of the winter temperatures, averaged from the records of 11 observatories in the Da Hinggan Mountains and its western areas in China (DHM-WA), identified 11 extremely cold (≤ − 1.5 °C) and 13 extremely warm winters (≥ + 1.5 °C) during the past 60 years (1951–2010). The winters of 2011 and 2012 are another two extremely cold events. Aimed at exploring the climate causes, a comprehensive investigation...
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