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2022 Fiscal Year Final Research Report

Study of elementary processes in the atmosphere through the generation mechanism investigation of polar mesosphere winter echoes

Research Project

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Project/Area Number 17H02969
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Space and upper atmospheric physics
Research InstitutionNational Institute of Polar Research

Principal Investigator

Tsutsumi Masaki  国立極地研究所, 先端研究推進系, 教授 (80280535)

Co-Investigator(Kenkyū-buntansha) 西村 耕司  京都大学, 生存圏研究所, 准教授 (60455475)
Project Period (FY) 2017-04-01 – 2021-03-31
Keywords極域中間圏 / 南極 / 大気レーダー / 大気波動 / 大気乱流 / PANSYレーダー / MFレーダー
Outline of Final Research Achievements

Using atmospheric radar systems at Syowa station, Antarctic, we have developed observation techniques of atmospheric turbulences and small scale gravity waves, which are the frontier of atmospheric studies, in the height region of 1-90 km. Observed parameters have been analysed to study their energy, momentum flux, and seasonal behavior.
The developed techniques are further planned to apply to radar systems in the Arctic, and a preliminary feasibility study has been made in collaboration with research institutes in the northern Scandinavia.

Free Research Field

大気物理学

Academic Significance and Societal Importance of the Research Achievements

大気中には大小さまざまなスケールの現象があり、大きなスケールから小さなスケールへと姿を変えて行く中で受け渡されるエネルギーや運動量を定量的に調べることが、地球大気環境を調べる上で重要となる。極域は、地球大気の大きな流れ(大気大循環)の始点・終点の役割を持つが、へき地であり観測が十分ではなく、小スケール現象は観測手段が限られるためにさらに不明点が多い。本研究により極域大気をより精度よく観測することで、地球大気全体の理解に貢献できる。

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Published: 2024-01-30  

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