日本列島上空の水平対流の力学の解明(大気(3),一般講演)

概要

論文の詳細を見る
The atmosphere of the earth is stably density-stratified fluid. Due to the difference in the thermal responses between the land and the sea, the differential heating causes horizontal convection across the coast line. The earth has diurnal and annual cycle horizontal convections in the atmosphere corresponding to the rotation and yearly round of the earth. From analysis of observational data, we found that the dynamical impedance of the diurnal cycle horizontal convection over the Japanese Islands is lower than that of annual cycle horizontal convection. This lower dynamical impedance of the diurnal convection can be understood by considering with resonance between the forcing and the adjustment process. To examine the idea we calculate the dynamical impedance of horizontal convection using linear theory. This calculation shows that the dynamical impedance in diurnal cycle is lower than that of annual cycle.
日本流体力学会の論文
2008-09-04