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Impact of the Arctic sea ice loss on the thermosphere-ionosphere variability

Research Project

Project/Area Number 23K20874
Project/Area Number (Other) 21H01150 (2021-2023)
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeMulti-year Fund (2024)
Single-year Grants (2021-2023)
Section一般
Review Section Basic Section 17010:Space and planetary sciences-related
Research InstitutionKyushu University

Principal Investigator

Miyoshi Yasunobu  九州大学, 理学研究院, 教授 (20243884)

Co-Investigator(Kenkyū-buntansha) 品川 裕之  九州大学, 国際宇宙惑星環境研究センター, 博士研究員 (00262915)
藤原 均  成蹊大学, 理工学部, 教授 (50298741)
陣 英克  国立研究開発法人情報通信研究機構, 電磁波研究所電磁波伝搬研究センター, 主任研究員 (60466240)
垰 千尋  国立研究開発法人情報通信研究機構, 電磁波研究所電磁波伝搬研究センター, 主任研究員 (80552562)
Project Period (FY) 2024-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
Fiscal Year 2024: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2023: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Keywords超高層大気変動 / 大気上下結合 / 宇宙天気 / 数値シミュレーション / 大気波動
Outline of Research at the Start

過去20~30年間において北極域の海氷は急速に減少している。北極域の海氷減少は,対流圏の大気循環(気候変動)を引き起こしていることが知られている。本研究課題では,北極域の海氷減少に起因する対流圏循環変動が,より上空にある超高層大気(熱圏・電離圏)の大気循環にどのような影響を及ぼすかについて明らかにする。研究は,地表面から大気上端までの全大気を含む大気モデルを用いた数値シミュレーションにより実施する。さらに数値シミュレーション結果の解析から,海氷減少が遠く離れた超高層大気に,どのような過程を経て影響しているかについて明らかにする。

Outline of Final Research Achievements

Over the past 20 to 30 years, sea ice in the Arctic has been rapidly decreasing. It is known that the Arctic sea-ice loss causes changes in the general circulation atmospheric circulation in the troposphere. In this study, we quantitatively clarified how the changes in tropospheric circulation caused by the Arctic sea-ice loss affect the general circulation in the upper atmosphere (thermosphere and ionosphere). Numerical simulations were carried out by using a whole atmosphere model, which contained the region from the ground surface to the upper atmosphere. From the results obtained by the numerical simulations, we analyzed the mechanism that the Arctic sea ice loss affected the general circulation in the upper atmosphere through modulation of the upward propagating atmospheric waves.

Academic Significance and Societal Importance of the Research Achievements

北極域の海氷減少が,対流圏での大気循環変動を引き起こし,さらに上層の成層圏・中間圏のみならず熱圏・電離圏(大気上端)にまで影響することを示した。熱圏・電離圏への影響については,対流圏で励起される大気波動の変調を介していることが示された。遠く離れた領域に影響を及ぼす物理機構については,大気波動の変調が重要であることが示された。また,近年の北極域の海氷減少は,地球温暖化に伴う異常気象と関連して社会的に関心の高い地球環境問題の一つになっている。その中で,地表付近の環境変動(海氷減少)が,高度100㎞以上の大気領域を含めた地球大気全体の循環変化を引き起こすことを示した社会的意義は大きい。

Report

(5 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (33 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 7 results,  Open Access: 7 results) Presentation (26 results) (of which Int'l Joint Research: 9 results,  Invited: 2 results)

  • [Journal Article] Simulation study of atmosphere?ionosphere variations driven by the eruption of Hunga Tonga-Hunga Ha’apai on 15 January 20222024

    • Author(s)
      Shinagawa Hiroyuki、Miyoshi Yasunobu
    • Journal Title

      Earth, Planets and Space

      Volume: 76 Issue: 1 Pages: 15-15

    • DOI

      10.1186/s40623-024-01960-6

    • Related Report
      2024 Annual Research Report 2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Upward propagation of gravity waves and ionospheric perturbations triggered by the 2022 Hunga-Tonga volcanic eruption2023

    • Author(s)
      Miyoshi Yasunobu、Shinagawa Hiroyuki
    • Journal Title

      Earth, Planets and Space

      Volume: 75 Issue: 1 Pages: 68-68

    • DOI

      10.1186/s40623-023-01827-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Difference spectrum fitting of the ion?neutral collision frequency from dual-frequency EISCAT measurements2023

    • Author(s)
      Gunzkofer Florian、Stober Gunter、Pokhotelov Dimitry、Miyoshi Yasunobu、Borries Claudia
    • Journal Title

      Atmospheric Measurement Techniques

      Volume: 16 Issue: 23 Pages: 5897-5907

    • DOI

      10.5194/amt-16-5897-2023

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Numerical Simulations of Metallic Ion Density Perturbations in Sporadic E Layers Caused by Gravity Waves2023

    • Author(s)
      Qiu Lihui、Yamazaki Yosuke、Yu Tao、Becker Erich、Miyoshi Yasunobu、Qi Yifan、Siddiqui Tarique A.、Stolle Claudia、Feng Wuhu、Plane John M. C.、Liang Yu、Liu Huixin
    • Journal Title

      Earth and Space Science

      Volume: 10 Issue: 8 Pages: 1-10

    • DOI

      10.1029/2023ea003030

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Monthly Climatologies of Zonal‐Mean and Tidal Winds in the Thermosphere as Observed by ICON/MIGHTI During April 2020-March 20222023

    • Author(s)
      Yamazaki Y.、Harding B. J.、Qiu L.、Stolle C.、Siddiqui T. A.、Miyoshi Y.、Englert C. R.、England S. L.
    • Journal Title

      Earth and Space Science

      Volume: 10 Issue: 6

    • DOI

      10.1029/2023ea002962

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Unexpected space weather causing the reentry of 38 Starlink satellites in February 20222022

    • Author(s)
      Kataoka Ryuho、Shiota Daikou、Fujiwara Hitoshi、Jin Hidekatsu、Tao Chihiro、Shinagawa Hiroyuki、Miyoshi Yasunobu
    • Journal Title

      Journal of Space Weather and Space Climate

      Volume: 12 Pages: 41-41

    • DOI

      10.1051/swsc/2022034

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comparison of the tidal signatures in sporadic E and vertical ion convergence rate, using FORMOSAT-3/COSMIC radio occultation observations and GAIA model2022

    • Author(s)
      Sobhkhiz-Miandehi Sahar、Yamazaki Yosuke、Arras Christina、Miyoshi Yasunobu、Shinagawa Hiroyuki
    • Journal Title

      Earth, Planets and Space

      Volume: 74 Issue: 1 Pages: 88-88

    • DOI

      10.1186/s40623-022-01637-y

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Day-to-day variation in the ionosphere caused by upward propagating planetary waves2024

    • Author(s)
      Y.Miyoshi, C. Tao, H.Shinagawa, H,Jin, H.Fujiwara
    • Organizer
      COSPAR general assembly
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quasi-6-Day Wave Modulation on the Inter-Hemispheric Field-Aligned Currents (IHFACs) using the Principal Component Analysis2024

    • Author(s)
      K. Takayama, A. Yoshikawa, Y.Miyoshi
    • Organizer
      AGU fall meeting
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 北極海の海氷減少が中層大気に与える影響2024

    • Author(s)
      森祥輔, 三好勉信
    • Organizer
      地球電磁気・地球惑星圏学会 2024年秋季年会
    • Related Report
      2024 Annual Research Report
  • [Presentation] GAIAシミュレーションデータのメタデータ・DOI登録2024

    • Author(s)
      垰千尋, 陣英克, 新堀淳樹, 能勢正仁, 田中良昌, 阿部修司, 村山泰啓, 品川裕之, 三好勉信,藤原均
    • Organizer
      地球電磁気・地球惑星圏学会 2024年秋季年会
    • Related Report
      2024 Annual Research Report
  • [Presentation] データ同化による電離圏・熱圏大気の予測技術の開発2024

    • Author(s)
      陣英克,安藤慧,垰千尋,三好勉信,品川裕之,藤原均
    • Organizer
      地球電磁気・地球惑星圏学会 2024年秋季年会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 津波で生成される大気波動と電離圏変動のグローバルシミュレーション2024

    • Author(s)
      品川裕之,三好勉信
    • Organizer
      地球電磁気・地球惑星圏学会 2024年秋季年会
    • Related Report
      2024 Annual Research Report
  • [Presentation] 半球間沿磁力線電流(IHFACs)における準6日波の季節変動と緯度構造2024

    • Author(s)
      高山久美,吉川顕正,三好勉信
    • Organizer
      地球電磁気・地球惑星圏学会 2024年秋季年会
    • Related Report
      2024 Annual Research Report
  • [Presentation] Upward propagation of gravity waves and ionospheric perturbation triggered by the 2022 Hunga-Tonga Volcanic Eruption2023

    • Author(s)
      Miyoshi Yasunobu, Shinagawa Hiroyuki
    • Organizer
      AOGS 20th annual meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Upward propagation of gravity waves and ionospheric perturbation triggered by the 2022 Hunga-Tonga Volcanic Eruption2023

    • Author(s)
      Shinagawa Hiroyuki, Miyoshi Yasunobu
    • Organizer
      28th IUGG general assembly
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quasi-6-Day Wave Variation on the Inter-Hemispheric Field-Aligned Currents (IHFACs)2023

    • Author(s)
      Takayama Kumi, Yoshikawa Akimasa, Miyoshi Yasunobu
    • Organizer
      AOGS 20th annual meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quasi-6-Day Wave Variation on the Inter-Hemispheric Field-Aligned Currents (IHFACs)2023

    • Author(s)
      Takayama Kumi, Yoshikawa Akimasa, Miyoshi Yasunobu
    • Organizer
      AGU fall meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 半球間沿磁力線電流(IHFAC)に現れる準6日波の変動2023

    • Author(s)
      高山久美,吉川顕正,三好勉信
    • Organizer
      地球惑星圏学会第154回総会・講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 2022 年1 月15 日のトンガ火山噴火に伴う大気圏・電離圏変動のシミュレーション研究2023

    • Author(s)
      品川裕之,三好勉信
    • Organizer
      地球惑星圏学会第154回総会・講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 冬季成層圏と夏季中間圏の半球間結合2023

    • Author(s)
      足立拓馬,三好勉信
    • Organizer
      地球惑星圏学会第154回総会・講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] GAIA極域変動版を用いた大規模磁気嵐中のNmF2とTECの異なる振舞の調査2023

    • Author(s)
      垰 千尋, 陣 英克, 品川 裕之, 三好 勉信, 藤原 均
    • Organizer
      地球惑星圏学会第154回総会・講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] デルパラメタ等による大気・電離圏シミュレーションの不確定性の評価2023

    • Author(s)
      陣 英克, 三好 勉信, 垰 千尋, 安藤 慧, 品川 裕之, 藤原 均
    • Organizer
      地球惑星圏学会第154回総会・講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] GAIAシミュレーションデータのIUGONET・DOI登録に向けて―DOI登録システムの更新計画2023

    • Author(s)
      垰 千尋, 陣 英克, 品川 裕之, 三好 勉信, 藤原 均, 能勢 正仁, 村山 泰啓, 新堀 淳樹, 田中 良昌
    • Organizer
      地球惑星圏学会第154回総会・講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 6-day oscillation in the thermosphere and ionosphere during the 2019 SSW event2022

    • Author(s)
      Y. Miyoshi and Y. Yamazaki
    • Organizer
      16th International Symposium on Equatorial Aeronomy
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Clarification of Atmospheric Tidal Modes Appearing on Ionospheric Currents with Principal Component Analysis2022

    • Author(s)
      K. Takayama, A. Yoshikawa, and Y. Miyoshi
    • Organizer
      AGU fall meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 2018 年12 月の成層圏突然昇温と準4日波の鉛直伝播について2022

    • Author(s)
      武田 大輝, 三好 勉信
    • Organizer
      地球電磁気・地球惑星圏学会第152回総会・講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 2019 年の南半球成層圏突然昇温が中間圏・熱圏の大気大循環に引き起こす影響について2022

    • Author(s)
      山本 桂輔, 三好 勉信
    • Organizer
      地球電磁気・地球惑星圏学会第152回総会・講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 成層圏準2 年周期振動が引き起こす中間圏・下部熱圏の東西風変動について2022

    • Author(s)
      菅田 凌生, 三好 勉信
    • Organizer
      地球電磁気・地球惑星圏学会第152回総会・講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Impacts of the 2019 Antarctic stratospheric sudden warming event (SSW) on the equatorial thermosphere and ionosphere2021

    • Author(s)
      Y. Miyoshi and Y. Yamazaki
    • Organizer
      International symposium for equatorial Atmosphere
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 2019年9月南半球成層圏突然昇温が熱圏・電離圏に及ぼす影響2021

    • Author(s)
      三好 勉信, 山崎 洋介
    • Organizer
      地球電磁気・地球惑星圏学会第150回総会・講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 観測との比較によるGAIA極域改良版の再現性評価2021

    • Author(s)
      垰 千尋, 陣 英克, 新堀 淳樹,品川 裕之, 三好 勉信, 藤原 均
    • Organizer
      地球電磁気・地球惑星圏学会第150回総会・講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 大気圏電離圏モデルGAIAによる地磁気静穏時の平均的熱圏・電離圏変動の再現性評価と課題2021

    • Author(s)
      陣 英克, 三好 勉信, 垰 千尋, 品川 裕之, 藤原 均
    • Organizer
      地球電磁気・地球惑星圏学会第150回総会・講演会
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2026-01-16  

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