State of polar climate (2025)

作者：Minghu Ding, Qing-Lin Zhang, X F Wang, Zhi-Qiang Li, Yong Yu, Lin-Gen Bian, Zhina Jiang, Xiang Lin, Shihe Ren, Jie Su, Biao Tian, Sai Wang, Qing-Yuan Wu, Yi Yu, Dongqi Zhang, Lei Zhang, Wenqian Zhang, Zhao Shou-dong, Kongju Zhu · 发表于：Advances in Climate Change Research · 年份：2024 · DOI：10.1016/j.accre.2024.08.004 · 被引用次数：20 · 研究领域：Arctic and Antarctic ice dynamics、Arctic and Russian Policy Studies、Atmospheric and Environmental Gas Dynamics

The year 2023 has become the warmest year on global record. As the Antarctic and Arctic are sensitive regions to global warming, the climate changes in 2023 in these regions have attracted widespread attention. In this study, using observations, reanalysis and remote sensing data, we reported detailed polar climate changes in 2023, including warming, sea ice, atmospheric composition and extreme events. Antarctic exhibited large east‒west regional differences and the coexistence of extreme warm and cold events. In Coats Land, Queen Maud Land and the Antarctic Peninsula, three and seven stations recorded the second and third highest autumn air temperatures in history, respectively. The Amundsen–Scott station experienced extreme warming event in July, with the temperature increasing by 40 °C in one day. Abnormal cooling was evident in the Ross Sea and neighboring regions which were predominantly winter (June–August) cold anomalies, with Marylin Station reaching the lowest winter temperature in history. The Arctic experienced the warmest summer after 1979, with an overall distribution of ‘warm land‒cold sea’ on annual average. Compared with the 1991–2020 average, the annual air temperature anomalies reached more than 2 °C in northern Canada and the Barents Sea–Kara Sea coast. Abnormal high summer temperature caused most severe wildfires in Canada on record and second largest daily cumulative melt area over the Greenland ice Sheet daily post-1979. Polar sea ice continued to decrea...