Association between Arctic autumn sea ice concentration and early winter precipitation in China

• Published in: Acta oceanologica Sinica Vol. 35; no. 5; pp. 73 - 78
• Main Authors: Liu, Na, Lin, Lina, Kong, Bin, Wang, Yingjie, Zhang, Zhanhai, Chen, Hongxia
• Format: Journal Article
• Language: English
• Published: Beijing The Chinese Society of Oceanography 01.05.2016; Springer Nature B.V; Key Laboratory of Marine Science and Numerical Modeling, First Institute of 0ceanography, State 0ceanic Administration, Qingdao 266061, China%Key Laboratory for Polar Science, Polar Research Institute of China, Shanghai 200136, China
• Subjects: Atmospheric circulation; Autumn; Climate; Climatology; Cold; Datasets; Earth and Environmental Science; Earth Sciences; Ecology; Engineering Fluid Dynamics; Environmental Chemistry; General circulation models; Ice; Investigations; Marine; Marine & Freshwater Sciences; Oceanography; Precipitation; Sea ice; Singular value decomposition; Snow; Wave packets; Wave trains; Winter; 中国南部; 冬季降水; 北极海冰; 奇异值分解分析; 早期; 浓度; 秋季; 青藏高原东北部; Tibetan Plateau; Greenland Sea; Arctic region; China; Japan; Arctic Ocean; Yellow Sea; Bohai Sea; INW, Huanghai Sea; INW, Japan Sea; INE, Pacific, Canadian Basin; China, People's Rep; China, People's Rep., Xizang, Tibetan Plateau; PN, Arctic Ocean; ANE, Greenland Sea; INW, Bohai Sea; SVD; early winter precipitation in China; Arctic autumn sea ice
• ISSN: 0253-505X; 1869-1099
• DOI: 10.1007/s13131-016-0860-7

Associations between autumn Arctic sea ice concentration（SIC） and early winter precipitation in China are studied using singular value decomposition analysis. The results show that a reduced SIC almost everywhere in the Arctic Ocean, except the northern Greenland Sea and Canadian Basin, are accompanied by dry conditions over central China, extending northeast from the Tibetan Plateau toward the Japan Sea, the Bohai Sea and the Yellow Sea, and wet conditions over South China and North China. Atmospheric circulation anomalies associated with SIC variability show two wave-train structures, which are persistent from autumn to winter, leading to the identified relationship between autumn Arctic SIC and early winter precipitation in China. Given that the decline in autumn SIC in the Arctic Ocean is expected to continue as the climate warms, this relationship provides a possible long-term outlook for early winter precipitation in China.