[Seminar on Nov 18] Impacts of climate change in the Arctic Ocean
Dr. Zhenxia Long
报告人单位: Bedford Institute of Oceanography,
Department of Fisheries & Oceans Canada
Room 1218, Building 3, IAP
10:00, Nov 19, 2019
This talk will focus on how the Arctic Ocean might respond to the climate change in the Arctic. In a warmer climate, the Beaufort High tends to be weak due to the increased cyclone activity in the western Arctic. Our simulations suggest an 11% decrease per decade in ice volume, with the Arctic Ocean becoming largely ice free in the summers by about ~ 2060s. Moreover, due to the increased ice melting and Ekman transport, there is an increasing trend in fresh water content in the Beaufort Sea. In terms of the Atlantic Water Layer (AWL), its temperature tends to decrease from 0.36oC in the 2010s to 0.26oC in the 2060s. In the vertical, the warm Atlantic water core slightly expands before the 2030s, but significantly shrinks after the 2050s, and essentially disappears by 2070-2099, in the southern Beaufort Sea.
Dr. Zhenxia Long is a research scientist at Bedford Institute of Oceanography, Department of Fisheries & Oceans (DFO) Canada. He obtained his Ph.D. from the Institute of Atmospheric Physics, Chinese Academy of Sciences. He is a leading expert on the Arctic research at DFO. His research interests include development of regional climate models, air-sea interactions in cold regions, and impacts of climate change in the Arctic and Northwest Atlantic.