How does ENSO affect the upper atmosphere: the role of Ozone
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- Liu Huixin
- Principal Investigator
- 九州大学
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- 山本 衛
- Co-Investigator
- 京都大学
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- 江口 菜穂
- Co-Investigator
- 九州大学
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- 陣 英克
- Co-Investigator
- 国立研究開発法人情報通信研究機構
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- 廣岡 俊彦
- Co-Investigator
- 九州大学
About this project
- Japan Grant Number
- JP18H01270
- Funding Program
- Grants-in-Aid for Scientific Research
- Funding organization
- Japan Society for the Promotion of Science
- Project/Area Number
- 18H01270
- Research Category
- Grant-in-Aid for Scientific Research (B)
- Allocation Type
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- Single-year Grants
- Review Section / Research Field
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- Basic Section 17010:Space and planetary sciences-related
- Research Institution
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- Kyushu University
- Project Period (FY)
- 2018-04-01 〜 2022-03-31
- Project Status
- Completed
- Budget Amount*help
- 17,160,000 Yen (Direct Cost: 13,200,000 Yen Indirect Cost: 3,960,000 Yen)
Research Abstract
ENSO has significant impacts on the upper atmosphere. This project examines the role ENSO-modulated Ozone change in this atmosphere-ionosphere coupling during ENSO. Using whole atmosphere model simulations along with observations, we found ozone modulation strengthens (attenuates) the first symmetric mode of the DW2 (D0 and DW1) tide by +5% (－1% and－4%) from 20 to 100 km altitudes on average. These responses are probably attributed to the tropospheric ozone modulation. These responses are reasonable because both the ozone modulation and these first modes have a peak at the equator. Also, the vertical wavelengths of the first modes are about twice as long as the vertical thickness of the ozone modulation. Our results suggest that the ozone modulation due to El Nino influences the diurnal tides by a few percent because of the ozone modulation spatial structure.
Keywords
Details 詳細情報について
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- CRID
- 1040282256969276672
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- Text Lang
- ja
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- Data Source
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- KAKEN
