A research on density currents entering into water and tsunami generation processes during volcanic eruptions
| Project/Area Number |
19710150
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Natural disaster science
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
MAENO Fukashi The University of Tokyo, 地震研究所, 助教 (20444078)
|
|---|
| Project Period (FY) |
2007 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥3,460,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥1,900,000 (Direct Cost: ¥1,900,000)
|
|---|
| Keywords | 火山噴火 / 津波 / 密度流 / 自然災害 / 地質学 / 堆積学 / 地球物理学 / 防災 / 火山 |
|---|
| Research Abstract |
Physical parameters controlling a scale of tsunami generated by a density current entering sea during volcanic eruptions and a behavior of the density current were examined with laboratory and numerical experiments considering two-layer models. A scale of tsunami is mainly controlled by a flux of density currents, and a behavior of density currents is affected by a bottom friction force of the currents. Application of two-layer models to the 1883 Krakatau eruption and the results suggest that a pyroclastic flow entering into the sea is more plausible mechanism of the huge tsunami during this eruption. The methods and models using this research will be helpful for future studies on volcanogenic tsunamis.
|
Report
(4 results)
Research Products
(40 results)
-
-
-
-
-
-
-
-
[Journal Article] Intraplate magmatism related to deceleration of upwelling asthenospheric mantle : implications from the Changbaishan shield basalts, northeast China2009
Author(s)
Kuritani, T., Kimura, J.-I., Miyamoto, T., Wei, H., Shimano, T., Maeno, F., Jin, X., Taniguchi, H
-
Journal Title
Lithos 112
Pages: 247-258
Related Report
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
