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-->   Masato Mori Last modified date：2024.04.24 Assistant Professor / Division of Earth Environment Dynamics Research Institute for Applied Mechanics 1 Research Interests 2 Academic Activities 2.1 Papers 2.2 Presentations 2.3 Works,Software and Database 3 Membership in Academic Society Graduate School Department of Interdisciplinary Engineering Sciences Interdisciplinary Graduate School of Engineering Sciences Homepage https://kyushu-u.elsevierpure.com/en/persons/masato-mori　Reseacher Profiling Tool　Kyushu University Pure https://www.researchgate.net/profile/Masato_Mori3Research Gate . Country of degree conferring institution (Overseas) No Field of Specialization climate dynamics ORCID(Open Researcher and Contributor ID) 0000-0003-4094-974X Total Priod of education and research career in the foreign country 00years00months Outline Activities My research interests include atmospheric circulation variability that cause extreme weather events. We aim to understand climate variability and change by clarifying the mechanisms and predictability of atmospheric circulation variability and estimating (attribution) the impact of external factors such as global warming on that through climate diagnostics using reanalysis data and numerical experiments using dynamical models and global climate models. Research Research Interests Atmosphere-Ocean-Sea Ice Interactionkeyword : Atmosphere-Ocean-Sea Ice coupling2021.04. Impacts of global warming-induced Arctic sea ice change on the mid-latitude atmospherekeyword : Arctic sea ice variability, remote influence, global warming2013.04. Dynamics of the Pacific/North American Teleconnection Patternkeyword : PNA, MJO, teleconnection, low-frequency variability, storm track2002.04～2008.03. Seasonal and near-term prediction of tropical cyclone activity over the Western North Pacifickeyword : tropical cyclone, seasonal prediction, near-term prediction, CGCM2011.04～2013.03. Understanding the formation mechanism of the atmospheric general circulation in the tropics using aqua planet experimentskeyword : aqua planet, superrotation, Hadley Circulation, Walker Circulation2008.04～2010.03. Academic Activities Papers  Show All Papers >> 1. Masato Mori, Masahiro Watanabe, Hideo Shiogama, Jun Inoue, Masahide Kimoto, Robust Arctic sea-ice influence on the frequent Eurasian cold winters in past decades, NATURE GEOSCIENCE, 10.1038/NGEO2277, 7, 12, 869-873, 2014.12, Over the past decade, severe winters occurred frequently in mid-latitude Eurasia(1,2), despite increasing global- and annual-mean surface air temperatures(3). Observations suggest that these cold Eurasian winters could have been instigated by Arctic sea-ice decline(2,4), through excitation of circulation anomalies similar to the Arctic Oscillation(5). In climate simulations, however, a robust atmospheric response to sea-ice decline has not been found, perhaps owing to energetic internal fluctuations in the atmospheric circulation(6). Here we use a 100-member ensemble of simulations with an atmospheric general circulation model driven by observation-based sea-ice concentration anomalies to show that as a result of sea-ice reduction in the Barents-Kara Sea, the probability of severe winters has more than doubled in central Eurasia. In our simulations, the atmospheric response to sea-ice decline is approximately independent of the Arctic Oscillation. Both reanalysis data and our simulations suggest that sea-ice decline leads to more frequent Eurasian blocking situations, which in turn favour cold-air advection to Eurasia and hence severe winters. Based on a further analysis of simulations from 22 climate models we conclude that the sea-ice-driven cold winters are unlikely to dominate in a warming future climate, although uncertainty remains, due in part to an insufficient ensemble size.. Works, Software and Database 1. [URL]. 2. [URL]. Presentations  Show All Presentations >> Membership in Academic Society the Meteorological Society of Japan Japan Geoscience Union Unauthorized reprint of the contents of this database is prohibited. Copyright © 2006, Kyushu University. All rights reserved.