| Project/Area Number |
08041107
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Field Research |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
YAMANAKA Manabu Radio Atmospheric Science Center Assosiate Professor, 超高層電波研究センター, 助教授 (30183982)
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| Co-Investigator(Kenkyū-buntansha) |
HASHIGUCHI Hiroyuki Radio Atmospheric Science Center Research Associate, 超高層電波研究センター, 助手 (90293943)
KITA Kazuyuki Radio Atmospheric Science Center Reseach Associate, 大学院・理学系研究科, 助手 (30221914)
NISHI Noriyuki Graduate school of Science Research Associate, 理学研究科, 助手 (00222183)
MATUMOTO Jun University of Tokyo, GSS Associate Professor, 大学院理学系研究科, 助教授 (80165894)
HAMADA Jun-Ichi Radio Atmospheric Science Center JSPS Fellow (DC), 超高層電波研究センター, 日本学術振興会特別研
HERY Harjant インドネシア, 気象庁, 観測研究部長
SRI Woro B.H インドネシア, 技術応用評価庁, 研究部長
BAYONG Tjasy インドネシア, バンドン工科大学, 助教授
PAULUS Agus インドネシア, 気象庁, 予報研究部長
沼口 敦 環境庁, 環境研究所, 研究官 (30237797)
鈴木 雅一 東京大学, 農学部, 助教授 (10144346)
長谷部 文雄 茨城大学, 理学部, 助教授 (00261735)
高橋 正明 東京大学, 気候システム研究センター, 助教授 (70188051)
村上 勝人 気象庁, 気象研究所, 室長
深尾 昌一郎 京都大学, 超高層電波研究センター, 教授 (30026249)
塩谷 雅人 北海道大学, 大学院地球環境科学研究科, 助教授 (50192604)
津田 敏隆 京都大学, 超高層電波研究センター, 教授 (30115886)
佐藤 薫 京都大学, 理学部, 助手 (90251496)
高薮 縁 環境庁, 環境研究所, 主任研究官 (10197212)
中沢 哲夫 気象庁, 気象研究所, 主任研究官
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| Project Period (FY) |
1996 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥10,200,000 (Direct Cost: ¥10,200,000)
Fiscal Year 1997: ¥5,700,000 (Direct Cost: ¥5,700,000)
Fiscal Year 1996: ¥4,500,000 (Direct Cost: ¥4,500,000)
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| Keywords | Indonesia / Climatic change / Database construction / Precipitation variations / Convective cloud activity / Atmospheric waves / Quasi-biennial oscillation / El nino southern oscillation |
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| Research Abstract |
The objective of this study is to collect and digitalize data of meteorological parameters such as rainfall for last three decades which have been accumulated by the Indoneshian Meteorogical and Geophysical Agency (BMG) as hand-or type-writing records, and to produce a useful database after utility checks on continuity and reliability which should fulfilll climatological blanks over the Indonesian maritime continent.
In the first fiscal year (1996), investigators visited the central office and ten regional offices of BMG,and surveyed the status of operational observations (instrumental accuracy, continuity, recording method, etc.) at each offices. An implementing agreement on collaborative data collection and analysis was made at the Agency for Assessment and Application of Techonology (BPPT). Daily rainfall data at 160 stations for a period of thirty yeas (1961-90) were collected and digitalized from data available at the central office of BMG.Preliminary investigations on data utility
… More
were carried out at BPPT,Bandung Institute of Tecnology (ITB), Kyoto University, University of Tokyo, etc.
In the second fiscal year (1997), lacked and uncertain Data included in the database constructed in the previous year were supplemented or corrected by original or other records. data for other periods (before 1961 and after 1990), other parameters (hourly rainfall, surface pressure and temperature, etc.) and other locations (including non-BMG stations) were also party collected, in particular in West Jawa and West Sumatera Privinces. All the data were installed on computers at Kyoto University and BPPT,and analyzed together with inversigators of other institutions such as University of Tokyo, ITB,etc.
Early results obtained from analysis of the database are as follows : climatology based on mean seasonal variations of rainfall ; onset and withdrawl of rainy season and their differences from cloud activities as seen by satellite observations ; statistical descriptions on delay and decrease of rainfall in E1 Nino years, and on increase in each preceeding years ; correlations between interannual rainfall variations and activities of intraseasonal and equatorial-wavelike variations ; etc. Less
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