2011 Fiscal Year Final Research Report
Role of solar UV and ozone on the stratosphere-troposphere Coupling and the climate change
| Project/Area Number |
20340131
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Japan, Meteorological Research Institute |
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Principal Investigator |
KURODA Yuhji 気象庁気象研究所, 気候研究部, 主任研究官 (80343888)
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| Co-Investigator(Kenkyū-buntansha) |
SHIBATA Kiyotaka 気象庁気象研究所, 環境・応用気象研究部, 室長 (50354494)
KODERA Kunihiko 名古屋大学, 太陽地球環境研究所, 客員教授 (70343887)
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| Research Collaborator |
DEUSHI Makoto 気象庁気象研究所, 環境・応用気象研究部, 研究官
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| Project Period (FY) |
2008 – 2011
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| Keywords | 太陽活動 / 紫外線 / オゾン / 成層圏対流圏結合 / 気候変動 |
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| Research Abstract |
Effect of the solar Ultra-Violet radiation(UV) on the Southern Annular Mode(SAM) was examined through the analysis of observational data and simulations of a chemistry-climate model. When the solar activity is higher and the UV is stronger, the Polar-night Jet Oscillation(PJO), which is the dominant mode of variability of the stratosphere-troposphere coupled system in late winter/spring, is found to be more enhanced and stronger SAM signal is created at the surface. Analysis of simulations of chemistry-climate model with changing UV strengths suggests that such solar UV-SAM relationship was created through enhanced wave-mean flow interaction originated from increases of ozone and temperature in the stratosphere under high solar UV condition.
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Research Products
(54 results)
