This study investigates the impact of Indo-Pacific Warm Pool (IPWP) warming on Arctic sea ice loss in northeastern Canada during boreal autumn. A significant negative correlation was found between the IPWP index and sea ice concentration, with IPWP warming statistically accounting for 45% of the observed sea ice loss. The authors introduce the "Arctic capacitor effect of the IPWP," suggesting that IPWP warming, driven by greenhouse gas emissions, initiates a planetary wavetrain influencing the Arctic vortex and subsequently impacting sea ice.

Lejiang Yu, Shiyuan Zhong, Timo Vihma, Shuoyi Ding, Cuijuan Sui, Bo Sun