Jawa Sea Multi-Instrumented Network Experiment (JASMINE)

1999 Fiscal Year Final Research Report Summary

• Project/Area Number: 09041106
• Research Category: Grant-in-Aid for Scientific Research (A).
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: KYOTO UNIVERSITY
• Principal Investigator: FUKAO Shoichiro Kyoto University, RASC, Professor, 超高層電波研究センター, 教授 (30026249)
• Co-Investigator(Kenkyū-buntansha): NISHI Noriyuki Kyoto University, Department of Geophysics, Research Associate, 理学研究科, 助手 (00222183) ; YAMANAKA Manabu Kobe University, Graduate School of Science and Tech., Professor, 自然科学研究科, 教授 (30183982) ; HASHIGUCHI Hiroyuki Kyoto University, RASC, Research Associate, 超高層電波研究センター, 助手 (90293943) ; OGINO Shin-ya Kyoto University, RASC, PD, 超高層電波研究センター, 学振PD ; WATANABE Akira Fukushima University, Faculty of Education, Professor, 教育学部, 教授 (70114006)
• Project Period (FY): 1997 – 1999
• Keywords: Boundary layer radar / L-band / Indonesia / Radiosonde / Boundary layer / Atmospheric dynamics / Cloud

Research Abstract

The occurrence of deep convection in the tropics affects the global circulation, sine it transports the heat from atmospheric boundary layer to the upper troposphere. In "maritime continent Indonesia", which is surrounded by the warmest sea water in the world, the most active convective clouds are generated there.
To investigate the atmospheric phenomena in this region, in July 1998, a boundary layer radar was transported to and installed in Bukittinggi, West Sumatera, Indonesia. In order to observe the lower atmosphere in equatorial region, we are continuously operating the BLR together with another BLR which is installed in Serpong near Jakarta. Moreover we conducted simultaneous observations with a surface meteorological instrument, ozone sondes, rawinsondes etc. We developed the method to classify precipitating cloud types from the BLR observation data, and found their differences between day and rainy seasons and between Java and Sumatera

Research Products

• [Publications] S.Ogino 他: "Horizontal variations of gravity wave activities in the lower stratosphere over Japan : A case study in the Baiu season 1991"Earth Planets Space. 51. 107-113 (1999)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Widiyatmi,I., H.Hashiguchi 他: "Quasi 4 day mode observed by a boundary layer radar at Serpong (6°S ,107°E), Indonesia"J. Meteor. Soc. Japan. 77. 1177-1184 (1999)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Hadi,T.W., S.Fukao 他: "Tropical sea-breeze circulation and related atmospheric phenomena observed with L-band boundary layer radar in Indonesia"J. Meteor. Soc. Japan. (印刷中). (2000)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Ogino, S., M. D. Yamanaka, Y. Shibagaki, T. Shimomai, and S. Fukao: "Horizontal variations of gravity wave activities in the lower stratosphere over Japan : A case study in the Baiu season 1991"Earth Planets Space.. 51. 107-113 (1999)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Widiyatmi, I., M. D. Yamanaka, H. Hashiguchi, S. Fukao, T. Tsuda, S. Ogino, S. W. B. Harijono, and H. Wiryosumarto: "Quasi 4 day mode observed by a boundary layer radar at Serpong (6。經, 107。絋), Indonesia"J. Meteor. Soc. Japan. 77. 1177-1184 (1999)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Hadi, T. W., T. Tsuda, H. Hashiguchi, and S. Fukao: "Tropical sea-breeze circulation and related atmospheric phenomena observed with L-band boundary layer radar in Indonesia"J. Meteor. Soc. Japan. (in press). (2000)
  • Description: 「研究成果報告書概要(欧文)」より