AM06-13-008 積雲対流の大規模組織化の数値実験(大気・海洋・惑星の流れ(2),一般講演)

概要

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Spontaneous organization of cloud convection in an idealized condition is investigated by use of a very large domain two-dimensional cumulus resolving model. Two kinds of large-scale structures develop in the numerical experiments: one is propagating disturbance with wavelength of〜3,000km, and the other is stationary disturbance that extends all of the domain. The former type of structure dominates in earlier period of numerical experiments, but the latter dominates later. The correlation between rainfall and low-level vertical velocity implies both of propagating and stationary disturbance can be understood within the framework of wave-CISK, only if one allows the sensitivity of cloud heating on the vertical velocity to vary with the wavelength of the disturbance.
日本流体力学会の論文
2006-09-05