2013 Fiscal Year Final Research Report
Research on the development of suitable technique of artificial rainfall and the magnification of application environment
| Project/Area Number |
23248042
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Agricultural environmental engineering
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| Research Institution | Japan International Research Center for Agricultural Sciences (2013)
University of Tsukuba (2011-2012) |
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Principal Investigator |
MAKI Taichi 独立行政法人国際農林水産業研究センター, その他部局等, 特定研究主査 (80314970)
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| Co-Investigator(Kenkyū-buntansha) |
WAKIMIZU Kenji (00240903)
NISHIYAMA Koji (20264070)
MORITA Osamu (70112290)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 人工降雨 / 液体炭酸法 / 渇水 / 気象改良 / 水資源 / 航空機散布 / 積雲 / 人工降雨雲 |
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| Research Abstract |
Liquid carbon dioxide was seeded at the seeding rate of 5-10 g/s by aircraft near the cloud bottom of convective or Stratus cloud of -2--5 C. Artificial rainfall experiments succeeded near Miyake and Mikura Islands, Tokyo on Feb. 26-27, 2012, Mar. 14-15 and Dec. 15-16, 2013, and near Karatsu, Saga on Dec. 26, 2013 and near Saijo, Ehime on Dec. 27, 2013. Rain particles hit on the front glass and virga, i.e., airmass with rain was appeared after 0.5 hour of seeding. Developed cloud was recognized by radar and/or satellite image. In case of inversion layer appeared in the cloud, disappeared cloud region was particularly found on the satellite image based on the change of rain from cloud.
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