Climatology of heavy rainfall over the Indonesian maritime continent and its link to Asian winter monsoon

• Project/Area Number: 15K01167
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Geography
• Research Institution: Tokyo Metropolitan University
• Principal Investigator: HAMADA Jun-Ichi 首都大学東京, 都市環境科学研究科, 特任准教授 (50359212)
• Co-Investigator(Kenkyū-buntansha): 森 修一 国立研究開発法人海洋研究開発機構, 大気海洋相互作用研究分野, 分野長代理 (00344309) ; 伍 培明 国立研究開発法人海洋研究開発機構, 大気海洋相互作用研究分野, 主任研究員 (00360751)
• Research Collaborator: MATSUMOTO Jun ; TAKAHASHI Hiroshi ; Syamsudin Fadli ; Hidayat Rahmat ; Haryoko Urip ; Renggono Findy
• Project Period (FY): 2015-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 気候学 / モンスーン / 海大陸 / 対流システム / 降水変動 / 気候システム / 熱帯気象 / 降水システム / 気候変動

Outline of Final Research Achievements

Extreme rainfall events, such as heavy rainfall and droughts, have big societal impacts to the Southeast Asian countries. In this study, we investigated spatial/temporal variations of rainfall, especially for heavy rainfall events, over the Indonesian maritime continent and their link to the Asian winter monsoon. One of the new findings is that interannual variations of the rainfall extremes tend to be predominant in the dry-wet transition season than in the peak rainy season. We also described that the heavy rainfall events in/around Java are induced by the interaction between cross-equatorial northerly surge and the local circulation.

Academic Significance and Societal Importance of the Research Achievements

これまで一般に利用できる形で十分に公開されてこなかった、インドネシア海大陸域の降水観測データセット（地上雨量計・気象レーダー）を新たに構築し、海大陸域の降水分布・変動解明のための基盤として提供することを可能とした。また、乾季と雨季の遷移期に、気候変動の影響をより強く受けることを示唆する結果を示し、豪雨や干ばつなどへの減災対策として、モンスーンのモニタリングや、オンセット（雨季の入り）メカニズム解明の重要性を指摘した。

Research Products

• [Int'l Joint Research] 技術評価応用庁/気象気候地球物理庁/ボゴール農科大学(インドネシア)
• [Journal Article] Meridional march of diurnal rainfall over Jakarta, Indonesia, observed with a C-band Doppler radar: an overview of the HARIMAU2010 campaign (2018)
  • Author(s): Mori, S., J.-I. Hamada, M. Hattori, P.-M. Wu, M. Katsumata, N. Endo, K. Ichiyanagi, H. Hashiguchi, A. A. Arbain, R. Sulistyowati, S. Lestari, F. Syamsudin, T. Manik, and M. D. Yamanaka
  • Journal Title: Progress in Earth and Planetary Science Volume: 5:47 Issue: 1
  • DOI: 10.1186/s40645-018-0202-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Diurnal cycle over a coastal area of the Maritime Continent as derived by special networked soundings over Jakarta during HARIMAU2010 (2018)
  • Author(s): Katsumata, M., S. Mori, J.-I. Hamada, M. Hattori, F. Syamsudin, and M. D. Yamanaka
  • Journal Title: Progress in Earth and Planetary Science Volume: 5:64 Issue: 1
  • DOI: 10.1186/s40645-018-0216-3
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Land-sea surface air temperature contrast on the western coast of Sumatra Island during an active phase of the Madden-Julian Oscillation (2018)
  • Author(s): Wu, P., S. Mori, and F. Syamsudin
  • Journal Title: Progress in Earth and Planetary Science Volume: 5:4 Issue: 1
  • DOI: 10.1186/s40645-017-0160-7
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Maritime continent coastlines controlling Earth’s climate (2018)
  • Author(s): Yamanaka, M. D., S.-Y. Ogino, P.-M. Wu, J.-I. Hamada, S. Mori, J. Matsumoto, and F. Syamsudin
  • Journal Title: Progress in Earth and Planetary Science Volume: 5:21 Issue: 1
  • DOI: 10.1186/s40645-018-0174-9
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Diurnal cycle of precipitation observed in the western coastal area of Sumatra Island: Offshore preconditioning by gravity waves (2017)
  • Author(s): Yokoi, S., S. Mori, M. Katsumata, B. Geng, K. Yasunaga, F. Syamsudin, Nurhayati, and K. Yoneyama
  • Journal Title: Monthly Weather Review Volume: 145 Issue: 9 Pages: 3745-3761
  • DOI: 10.1175/mwr-d-16-0468.1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] An overview of the Asian Monsoon Years 2007-2012 (AMY) and multi-scale interactions in the extreme rainfall events over the Indonesian Maritime Continent. In C.P. Chang et al. eds. (2017)
  • Author(s): Matsumoto, J., Wang, B., Wu, G.-X., Li, J., Wu, P.-M., Hattori, M., Mori, S., Yamanaka, Ogino, S.Y., Hamada, J.-I., Syamusdin, F., Koike, T., Tamagawa, K., Ikoma, E., Kinutani, H., Kamahori, H., Kamiguchi, K. and Yayoi, H.
  • Journal Title: The Global Monsoon System: Research and Forecast, (3rd ed.) Volume: - Pages: 365-385
  • DOI: 10.1142/9789813200913_0029
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Why Torrential Rain Occurs on the Western Coast of Sumatra Island at the Leading Edge of the MJO Westerly Wind Bursts (2017)
  • Author(s): Wu, P., D. Ardiansyah, S. Yokoi, S. Mori, F. Syamsudin, and K. Yoneyama
  • Journal Title: SOLA Volume: 13 Issue: 0 Pages: 36-40
  • DOI: 10.2151/sola.2017-007
  • NAID: 130006895191
  • ISSN: 1349-6476
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ENSO Influences on Rainfall Extremes around Sulawesi and Maluku Islands in the Eastern Indonesian Maritime Continent (2016)
  • Author(s): Sopia Lestari, Jun-Ichi Hamada, Fadli Syamsudin, Sunaryo, Jun Matsumoto, and Manabu D. Yamanaka
  • Journal Title: SOLA Volume: 12 Issue: 0 Pages: 37-41
  • DOI: 10.2151/sola.2016-008
  • NAID: 130005128580
  • ISSN: 1349-6476
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] How Much is the Precipitation Amount over the Tropical Coastal Region? (2016)
  • Author(s): Shin-Ya Ogino, Manabu D. Yamanaka, Shuichi Mori, and Jun Matsumoto
  • Journal Title: Journal of Climate Volume: 29 Issue: 3 Pages: 1231-1236
  • DOI: 10.1175/jcli-d-15-0484.1
  • Peer Reviewed / Open Access
• [Journal Article] Role of Maritime Continent Convection during the Preconditioning Stage of the Madden-Julian Oscillation Observed in CINDY2011/DYNAMO (2015)
  • Author(s): Hisayuki Kubota, Kunio Yoneyama, Jun-Ichi Hamada, Peiming Wu, Agus Sudaryanto, and Ikhsan B. Wahyono
  • Journal Title: Journal of the Meteorological Society of Japan. Ser. II Volume: 93A Issue: 0 Pages: 101-114
  • DOI: 10.2151/jmsj.2015-050
  • NAID: 130005120375
  • ISSN: 0026-1165, 2186-9057
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] インドネシア・ジャカルタにおけるモンスーン降水長期変動 (2019)
  • Author(s): 浜田純一・松本淳・山中大学・Sunaryo Hasan・Fadli Syamsudin
  • Organizer: 日本地理学会2018年度春季大会，専修大学（神奈川県・川崎市）
• [Presentation] インドネシア西部海大陸域における雷活動の日変化及び季節内変化 - Pre-YMC2015 観測結果 - (2018)
  • Author(s): 浜田純一・森修一・勝俣昌己・松本淳・Fadli Syamsudin・米山邦夫
  • Organizer: 第12回MUレーダー・赤道大気レーダーシンポジウム, 京都大学（京都府・宇治市）
• [Presentation] Interdecadal variations of monsoon rainfall in Batavia/Jakarta, Indonesia during the past 150 years (2018)
  • Author(s): Hamada, J.-I., J. Matsumoto, M. D. Yamanaka, U. Haryoko, and F. Syamsudin
  • Organizer: The 11th Annual ACRE meeting, Hachioji, Tokyo, Japan （国際学会）
  • Int'l Joint Research
• [Presentation] Pre-YMC 2015およびYMC-Sumatra 2017 で観られたスマトラ南西沿岸陸域の対流活動の特徴 (2018)
  • Author(s): 森修一・伍培明・城岡竜一・横井覚・米山邦夫・浜田純一・Urip Haryoko・Noer Nurhayati・Reni Sulistyowati・Fadli Syamsudin
  • Organizer: 第12回MUレーダー・赤道大気レーダーシンポジウム, 京都大学（京都府・宇治市）
• [Presentation] Convective activities over the southwestern coastal land of Sumatra island, Indonesia, during the Pre-YMC 2015 and YMC-Sumatra 2017 campaigns (2018)
  • Author(s): Mori, S., J.-I. Hamada, P. Wu, R. Shirooka, S. Yokoi, K. Yoneyama, U. Haryoko, R. Sulistyowati, and F. Syamsudin
  • Organizer: American Geophysical Union Fall Meeting 2018, Washington DC., USA （国際学会）
  • Int'l Joint Research
• [Presentation] インドネシア・ジャカルタ（バタビア）における過去150年間のモンスーン降水長期変動 (2017)
  • Author(s): 浜田純一・松本淳・Urip Haryoko・Fadli Syamsudin・山中大学
  • Organizer: 2017年日本地理学会春季学術大会
  • Place of Presentation: 筑波大学（茨城県つくば市）
  • Year and Date: 2017-03-28
• [Presentation] Diurnal and intraseasonal lightning activities over the western maritime continent during the pre-YMC observations in 2015 (2017)
  • Author(s): Hamada, J.-I., S. Mori, M. Katsumata, J. Matsumoto, F. Syamsudin, and K. Yoneyama
  • Organizer: Japang Geosciences Union and the American Geophysical Union Joint Meeting 2017, Makuhari Messe, Chiba, Japan
  • Int'l Joint Research
• [Presentation] An observational study on lightning activities over the coastal region of Sumatra, Indonesian maritime continent (2017)
  • Author(s): Hamada, J.-I., J. Matsumoto, S. Mori, M. Katsumata, F. Syamsudin, and K. Yoneyama
  • Organizer: Japang Geosciences Union and the American Geophysical Union Joint Meeting 2017, Makuhari Messe, Chiba, Japan
  • Int'l Joint Research
• [Presentation] Lightning Activities over the Coastal Region of Sumatra during the Pre-YMC Observations in 2015 (2017)
  • Author(s): Hamada, J.-I., S. Mori, M. Katsumata, J. Matsumoto, F. Syamsudin, and K. Yoneyama
  • Organizer: Asia Oceania Geosciences Society Annual Meeting, Singapore, Singapore
  • Int'l Joint Research
• [Presentation] Pre-YMC観測期間における海大陸域西部の雷活動の日変化 (2017)
  • Author(s): 浜田純一・森修一・勝俣昌己・松本淳・Fadli Syamsudin・米山邦夫
  • Organizer: 日本気象学会2017年度秋季大会, 北海道大学（北海道・札幌市）
• [Presentation] Diurnal cycle over Jakarta as revealed by thermodynamic budget analyses during HARIMAU2010 special sounding observations (2017)
  • Author(s): Katsumata, M., S. Mori, J. -I. Hamada, M. Hattori, F. Syamsudin, and M. D. Yamanaka
  • Organizer: Japang Geosciences Union and the American Geophysical Union Joint Meeting 2017, Makuhari Messe, Chiba, Japan
  • Int'l Joint Research
• [Presentation] ジャカルタ拡大首都圏における雷雨特性－JALS2015観測結果短報－ (2017)
  • Author(s): 森修一・伍培明・濱田純一・Ardhi A. Arbain・Sopia Lestari・Reni Sulistyowati・Fadli Syamsudin
  • Organizer: 第11回MUレーダー・赤道大気レーダーシンポジウム, 京都大学（京都府・宇治市）
• [Presentation] インドネシア・ジャカルタ拡大首都圏における雷雨特性－JALS2015観測結果ほか (2017)
  • Author(s): 森修一・伍培明・濱田純一・Ardhi A. Arbain・Sopia Lestari・Reni Sulistyowati・Fadli Syamsudin
  • Organizer: 日本気象学会2017年度秋季大会, 北海道大学（北海道・札幌市）
• [Presentation] 東アジア・東南アジアにおける気象データのデータレスキューについて (2017)
  • Author(s): 久保田尚之・松本淳・三上岳彦・財城真寿美・塚原東吾・赤坂郁美・遠藤伸彦・濱田純一・井上知栄・Rob Allan・Fiona Williamson
  • Organizer: 2017年日本地理学会春季学術大会
  • Place of Presentation: 筑波大学（茨城県つくば市）
• [Presentation] Indonesian coastlines controlling global climate (2016)
  • Author(s): Yamanaka, M.D., S.-Y. Ogino, P.-M. Wu, J.-I. Hamada, S. Mori, J. Matsumoto, and F. Syamsudin
  • Organizer: International Seminar on Sustainable Utilization of Coastal Resources in Tropical Zone
  • Place of Presentation: Bengkulu
  • Year and Date: 2016-10-19
  • Int'l Joint Research / Invited
• [Presentation] Lightning climatology over Jakarta, Indonesia, based on long-term surface operational, satellite, and campaign observations (2016)
  • Author(s): Mori, S., P. Wu, M. D. Yamanaka, J.-I. Hamada, A. A. Arbain, S. Lestari, R. Sulistyowati, and F. Syamsudin
  • Organizer: European Geosciences Union General Assembly 2016
  • Place of Presentation: Vienna
  • Year and Date: 2016-04-17
  • Int'l Joint Research
• [Presentation] Pre-YMC2015「みらいMR15-04同期」スマトラ島ベンクル陸上観測の概要 (2016)
  • Author(s): 森修一・伍培明・横井覚・清木亜矢子・Hugo Bellenger・井上知栄・濱田純一・勝俣昌己・米山邦夫・鈴木賢士・稲垣孝一・Agus・Fadli Syamsudin
  • Organizer: 2016年ブルーアースシンポジウム
  • Place of Presentation: 東京海洋大学（東京都港区）
  • Year and Date: 2016-03-08
• [Presentation] Climatology of rainfall extremes over the Eastern Indonesian Maritime Continent (2016)
  • Author(s): Hamada Jun-Ichi, Sopia Lestari, Fadli Syamsudin, Sunaryo, Jun Matsumoto, and Manabu D. Yamanaka
  • Organizer: GRENE-ei 5th International Workshop
  • Place of Presentation: Fukushima Agricultural Technology Centre (Koriyama, Fukushima)
  • Year and Date: 2016-03-06
  • Int'l Joint Research
• [Presentation] ENSO Impacts on Heavy Rainfall Events over the Indonesian Maritime Continent (2016)
  • Author(s): Hamada Jun-Ichi, Sopia Lestari, Fadli Syamsudin, Sunaryo, Jun Matsumoto, and Manabu D. Yamanaka
  • Organizer: MAHASRI 2016 International Workshop
  • Place of Presentation: Tokyo Metropolitan University (Hachioji, Tokyo)
  • Year and Date: 2016-03-02
  • Int'l Joint Research
• [Presentation] Lightning climatology over Jakarta, Indonesia, based on surface operational, satellite, and campaign observations (2016)
  • Author(s): Mori, S., P. Wu, M. Hattori, M. D. Yamanaka, Hamada, J.-I., A. A. Arbain, S. Lestari, R. Sulistyowati, and F. Syamsudin
  • Organizer: MAHASRI 2016 International Workshop
  • Place of Presentation: Tokyo Metropolitan University (Hachioji, Tokyo)
  • Year and Date: 2016-03-02
  • Int'l Joint Research
• [Presentation] Trends and interannual variations of rainfall over the Indonesian maritime continent (2016)
  • Author(s): Hamada, J.-I., S. Lestari, F. Syamsudin, S. Hassan, J. Matsumoto, and M. D. Yamanaka
  • Organizer: Japan Geosciences Union meeting 2016
  • Place of Presentation: 幕張メッセ（千葉県千葉市）
  • Int'l Joint Research
• [Presentation] 海大陸西部における降水経年変動とENSO・インド洋ダイポールとの関連 (2015)
  • Author(s): 浜田純一・松本淳・森修一・山中大学・Sunaryo・Sopia Lestari・Fadli Syamsudin
  • Organizer: 日本地理学会2015年秋季学術大会
  • Place of Presentation: 愛媛大学（愛媛県松山市）
  • Year and Date: 2015-09-18
• [Presentation] The impact of a tropical upper-tropospheric disturbance on the extreme precipitation event in Java Island during February 2015 (2015)
  • Author(s): Wu, P., S. Mori, J.-I. Hamada, S. Lestari, R. Sulistyowati, F. Syamsudin, and K. Yoneyama
  • Organizer: The 12th annual meeting of the AOGS
  • Place of Presentation: Suntec Singapore Convention & Exhibition Centre (Singapore)
  • Year and Date: 2015-08-02
  • Int'l Joint Research
• [Presentation] Coastal heavy rainfall and lightning over Jakarta, Indonesia - Preliminary results of JAkarta Lightning Study (JALS) 2015 campaign observation - (2015)
  • Author(s): Mori, S., A. A. Arbain, S. Lestari, R. Sulistyowati, F. Syamsudin, P. Wu, Hamada, J.-I., K. Yamashita, and K. Yoneyama
  • Organizer: The 26th IUGG General Assembly 2015
  • Place of Presentation: Prague Congress Centre (Prague, Czech Republic)
  • Year and Date: 2015-06-22
  • Int'l Joint Research