Tag : Atlantification

Washington: Researchers have discovered the cause of the Arctic Ocean sea ice decrease since 2007. The results suggest that when an atmospheric phenomenon known as the Arctic dipole reverses itself in its periodic cycle, there will be more pronounced drops in sea ice. An article from the journal Science that was just published online today describes the various ecosystem reactions to the Arctic dipole. This investigation clarifies how the Arctic Ocean climate is influenced by North Atlantic water. Physicists refer to it as Atlantification. Professor Igor Polyakov of the University of Alaska Fairbanks College of Natural Science and Mathematics is in charge of the study. Additionally, he is connected to UAF's International Arctic Research Centre. Researchers from Massachusetts, Washington state, Norway, Germany, and Massachusetts are co-authors along with Andrey V Pnyushkov, research assistant professor at the International Arctic Research Centre; Uma S. Bhatt, professor of atmospheric sciences at the UAF Geophysical Institute and UAF College of Natural Science and Mathematics; and others. ‘“This is a multidisciplinary view on what's going on in the Arctic and beyond,” Polyakov said of the new research. “Our analysis covered the atmosphere, ocean, ice, changing continents and changing biology in response to climate change.” The Arctic dipole alternates in about a 15-year cycle, and a variety of data, including direct instrumental observations, reanalysis products, and satellite information going back several decades, demonstrate that the system is likely nearing the end of the current regime. High pressure is centred over the Canadian part of the Arctic during the current "positive" phase of the Arctic dipole, which experts claim has bee ...