Atmospheric tidal variabilities during ENSO

KAKEN

About This Project

Japan Grant Number
JP17KK0095 (JGN)
Funding Program
Grants-in-Aid for Scientific Research
Funding Organization
Japan Society for the Promotion of Science

Kakenhi Information

Project/Area Number
17KK0095
Research Category
Fund for the Promotion of Joint International Research (Fostering Joint International Research)
Allocation Type
  • Multi-year Fund
Review Section / Research Field
  • Science and Engineering > Mathematics and Physics > Earth and planetary science > Space and upper atmospheric physics
Research Institution
  • Kyushu University
Project Period (FY)
2018 〜 2023
Project Status
Completed
Budget Amount*help
10,010,000 Yen (Direct Cost: 7,700,000 Yen Indirect Cost: 2,310,000 Yen)

Research Abstract

The El Nino-Southern Oscillation (ENSO), an interaction phenomenon between the troposphere and the ocean, has been found to affect the upper atmospheric region from 100 km to 1000 km altitude through long-term satellite observations and is a research topic of significant interest. In this study, we investigate the mechanism of the terrestrial connection by quantifying the radiative and latent heat variations associated with changes in water vapor due to rainfall during ENSO using numerical simulations, and clarify the causes of atmospheric tidal wave fluctuations. The coupling process from sea level to the upper atmosphere in El Nino climate change is clarified, which is expected to improve space weather prediction in the ionosphere and to lead to new developments in the overall atmospheric vertical coupling study.

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