Extreme Weather Variations in the Stratosphere -Troposphere Coupled

2017 Fiscal Year Final Research Report

• Project/Area Number: 24224011
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Kyoto University
• Principal Investigator: YODEN SHIGEO 京都大学, 理学研究科, 教授 (30167027)
• Co-Investigator(Kenkyū-buntansha): 向川 均 京都大学, 防災研究所, 教授 (20261349) ; 田口 正和 愛知教育大学, 教育学部, 准教授 (50397527) ; 水田 亮 気象庁気象研究所, 気候研究部, 主任研究官 (80589862) ; 石岡 圭一 京都大学, 理学研究科, 准教授 (90292804)
• Co-Investigator(Renkei-kenkyūsha): ENOMOTO TAKESHI 京都大学, 防災研究所, 准教授 (10358765) ; KODERA KUNIHIKO 名古屋大学, 宇宙地球環境研究所, 客員教授 (70343887) ; HIROOKA TOSHIHIKO 九州大学, 理学研究院, 教授 (90253393) ; KITOH AKIO 筑波大学, 生命環境科学研究科, 主幹研究員 (50354452) ; MURAKAMI SHIGENORI 気象庁気象研究所, 気候研究部, 主任研究官 (80354455) ; YOSHIDA KOHEI 気象庁気象研究所, 気候研究部, 研究官 (10636038) ; NAITO YOKO 京都大学, 大学院理学研究科, 助教 (50324603)
• Project Period (FY): 2012-05-31 – 2017-03-31
• Keywords: 成層圏‐対流圏結合 / 極端気象 / 成層圏突然昇温 / 成層圏準二年周期振動

Outline of Final Research Achievements

Dynamical linkage among internal and/or external variations in the stratosphere-troposphere coupled system was investigated comprehensively by the combination of data analyses and numerical model experiments. We showed not only that variations in the troposphere affect variations in the stratosphere, but also that the wave reflection in the stratosphere and variations of the circulation/ozone distribution can affect the occurrence of cold surge and variations of precipitation/temperature in the troposphere, respectively. These results can have an impact on understanding of climate variations and change in the troposphere.

Free Research Field

地球惑星科学