| Project/Area Number |
24651208
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Natural disaster science
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
TAKEMI Tetsuya 京都大学, 防災研究所, 准教授 (10314361)
|
|---|
| Project Period (FY) |
2012-04-01 – 2014-03-31
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
|---|
| Keywords | 強風災害 / 大気境界層 / 乱流構造 / 運動量輸送 / 混合層 |
|---|
| Research Abstract |
In order to analyze the phenomena in which strong winds at the surface are induced by the downward movement of the high-speed layer in the higher levels, observations have been made in the Ujigawa Open Laboratory, Disaster Prevention Research Institute, Kyoto University. As a result, in the near-neutral conditions, sometimes large-scale turbulence structures predominantly occur and corresponding strong winds blow at the surface. Strong winds at the surface were also observed after the passage of the ascending large-scale structure in the unstable conditions of the daytime. These phenomena are due to the downward transport of momentum from the high-speed layer in the higher levels. It is likely that similar phenomena are possible in the severe weather.
|
