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

Role of the subdaily air-sea interaction on the convection over the Maritime Continent

Research Project

Project/Area Number 20K14560
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 17020:Atmospheric and hydrospheric sciences-related
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

Zhao Ning  国立研究開発法人海洋研究開発機構, 地球環境部門(大気海洋相互作用研究センター), 研究員 (10823130)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords大気海洋相互作用 / 日周期変動 / 対流活動 / 海大陸 / 大気海洋結合モデル / 領域気象モデル / 日内変動 / 数値モデル / マッデン・ジュリアン振動 / 寒気吹き出し / 海面水温 / 日周期対流活動 / 日周期対流 / MJO / 海陸相互作用 / 日周期
Outline of Research at the Start

海大陸では、世界中でも最も高い海面水温であるため、活発な積雲対流活動によって、全球の大気循環に影響を及ぼす。しかしながら、現業の数値モデルでも、海大陸における対流活動に対する、系統的な誤差が存在する。本研究は、その誤差の一部が過小評価された日周期の大気海洋相互作用によるものと考えて、観測や再解析データ及び数値モデルに基づいて、海大陸における対流活動と海洋上層の変動に対する、日周期の大気海洋相互作用の役割を解明する。本研究による知見は、大気海洋相互作用の理解を深化し、現業モデルと予報モデルの改善にも資する。

Outline of Final Research Achievements

This study was conducted to evaluate the responses and related mechanisms of the diurnal atmospheric and oceanic variations in the Maritime Continent (MC) region to the large-scale atmospheric processes. With the help of observational data and high-resolution numerical models, the role of diurnal air-sea interaction in those processes was also evaluated. Results show that the large-scale processes could greatly influence the diurnal variations in the MC region by changing the background wind fields, which modulated the land-sea breeze and the evaporation at the sea surface, while the topography could also play a role according to the background wind direction. Furthermore, based on the sensitivity experiments using regional atmospheric model and a coupled atmosphere-ocean model, results suggest that the air-sea interaction could enhance convective activities via the enhanced surface evaporation during the daytime.

Academic Significance and Societal Importance of the Research Achievements

海大陸における活発な大気海洋相互作用による生じた対流活動が全球の大気循環に影響を及ぼす。そこの対流活動と大気海洋相互作用の役割の理解を深めると、局域ではなく日本を含む全球規模の大気変動の再現性と予測改善が期待される。本研究では、観測と数値実験両方を用いて、海大陸における対流活動が大規模大気変動に対する新たな応答メカニズムを提唱し、対流活動の変動に対する大気海洋相互作用の役割も定量的に評価した。これらの知見は、我々が大気海洋相互作用に対する理解を深化できるとともに、現業の気候モデルと予報モデルの改善に貢献するものである。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (7 results) (of which Int'l Joint Research: 6 results)

  • [Int'l Joint Research] 江蘇科技大学/華東師範大学/上海海洋大学(中国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Large spread in marine heatwave assessments for Asia and the Indo-Pacific between sea-surface-temperature products2024

    • Author(s)
      Zhang Xuewei、Zhao Ning、Han Zhen、Dai Zhijun
    • Journal Title

      Communications Earth & Environment

      Volume: 5 Issue: 1 Pages: 195-195

    • DOI

      10.1038/s43247-024-01369-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Moisture Sources of the Tohoku Heavy Rainfalls in August 2022 and the Influences of Tropical Storms2023

    • Author(s)
      N. Zhao, P. Wu, A. Manda, X. Guo, and B. Wang
    • Journal Title

      Geophysical Research Letters

      Volume: 50 Issue: 17 Pages: 1-10

    • DOI

      10.1029/2023gl104166

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Diurnal SST Warming and the Boreal Summer Intraseasonal Oscillation in the Philippine Sea: Contrasts between Early and Late Summer2023

    • Author(s)
      Seiki Ayako、Nagano Akira、Zhao Ning、Ueki Iwao、Yokoi Satoru
    • Journal Title

      SOLA

      Volume: 19 Issue: 0 Pages: 289-297

    • DOI

      10.2151/sola.2023-038

    • ISSN
      1349-6476
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Why Does Convection Weaken over Sumatra Island in an Active Phase of the MJO?2022

    • Author(s)
      Zhao Ning、Wu Peiming、Yokoi Satoru、Hattori Miki
    • Journal Title

      Monthly Weather Review

      Volume: 150 Issue: 4 Pages: 697-714

    • DOI

      10.1175/mwr-d-21-0251.1

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Moisture sources of the record-breaking heavy rainfalls over Tohoku region in August 20222023

    • Author(s)
      Ning Zhao, Peiming Wu, Atsuyoshi Manda, Xiaojun Guo, Bin Wang
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Some indications of key components for the MJO and relevant phenomena over the Maritime Continent from the recent field observations2023

    • Author(s)
      Kunio Yoneyama, Satoru Yokoi, Ning Zhao, Peiming Wu, Qoosaku Moteki, Takanori Horii
    • Organizer
      WWRP/WCRP S2S Summit 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Moisture Sources of the Record-breaking Heavy Rainfalls Over Tohoku Region in August 20222023

    • Author(s)
      Ning Zhao, Peiming Wu, Atsuyoshi Manda, Xiaojun Guo, Bin Wang
    • Organizer
      20th Annual Meeting Asia Oceania Geosciences Society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フィリピン海における海面水温の日周期変動と北半球夏季季節内振動との関係2023

    • Author(s)
      清木亜矢子、永野憲、趙寧、植木巌、横井覚
    • Organizer
      日本気象学会2023年度秋季大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Diurnal SST Warming and the Boreal Summer Intraseasonal Oscillation in the Philippine Sea: Contrasts between Early and Late Summer2023

    • Author(s)
      Ayako Seiki, Akira Nagano, Ning Zhao, Iwao Ueki, Satoru Yokoi
    • Organizer
      AMS annual meeting 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Diurnal SST warming and the boreal summer intraseasonal oscillation in the Philippine Sea2023

    • Author(s)
      Ayako Seiki, Akira Nagano, Ning Zhao, Iwao Ueki, Satoru Yokoi
    • Organizer
      日本地球惑星科学連合2023年大会
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Why Does Convection Weaken Over Sumatra Island in an Active Phase of the Madden-Julian Oscillation?2021

    • Author(s)
      Ning Zhao, Peiming Wu, Miki Hattori
    • Organizer
      AGU 2021 Fall Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi