Environmental Research Letters, December 30
The winter flow of Russia’s massive Yenisei River – the largest river emptying into the Arctic Ocean – increased 80% between 1995 and 2019, unprecedented in the record going back to 1784. This acceleration may have begun as early as 1960. Previous studies have attributed such changes in wintertime freshwater flow to both warmer air temperatures, and changes in seasonal precipitation or snowpack. However this study, together with other recent research suggests that increased permafrost thaw, including abrupt processes along the Yenisei River basin, as well as forest fires that decrease the water holding capacity of surrounding vegetation may be the most important drivers of this increased winter flow; which in turn may decrease Arctic sea ice cover in the region.
https://iopscience.iop.org/article/10.1088/1748-9326/ac3e20
Av Science Writing-praktikant Haily Landrigan, Global Outreach Director Amy Imdieke, och ICCI-direktör Pam Pearson.
Published jan. 15, 2022 Updated jul. 12, 2022 3:26 e m