La Nina-like mean state drives winter extremes in North America


Mi-Kyung Sung1, Baek-Min Kim2, Sang-Wook Yeh3 and Changhyun Yoo3, (1)Ewha Womans University, Seoul, Korea, Republic of (South), (2)KOPRI Korea Polar Research Institute, Incheon, South Korea, (3)Ewha Womans University, Climate and Energy Systems Engineering, Seoul, South Korea