• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2014 Fiscal Year Final Research Report

Study of thermospheric wind variation during pulsating aurora

Research Project

  • PDF
Project/Area Number 24540478
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Space and upper atmospheric physics
Research InstitutionNagoya University

Principal Investigator

OYAMA Shin-ichiro  名古屋大学, 太陽地球環境研究所, 助教 (20444424)

Project Period (FY) 2012-04-01 – 2015-03-31
Keywordsオーロラ / 熱圏 / 電離圏 / 磁気圏 / 光学観測
Outline of Final Research Achievements

We investigated polar thermospheric wind variations during pulsating aurora with focus on recovery phase of the auroral substorm. For many years, it had been considered that amount of the energy dissipation at the recovery phase was too small to generate wind variations in the polar thermosphere. However, our observational activities with high-sensitive optical instruments at Tromsø, Norway found larger amplitudes than the predicted by the present theory. Analysis using data since January 2009 showed that the wind variations had a tendency to appear in the darker area and the edge of the auroral patch at the recovery phase.

Free Research Field

超高層物理学

URL: 

Published: 2016-06-03  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi