A study on vertical transports of inert substances in the atmosphere
| Autor: | KIDA, Hideji, TODA, Mitsuhiko |
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| Jazyk: | japonština |
| Rok vydání: | 1998 |
| Předmět: | |
| Zdroj: | 京都大学防災研究所年報. B. 41(B-1):357-373 |
| ISSN: | 0386-412X |
| Popis: | 地球上の気候の形成において、O3やSO2といった微量物質の分布は重要な要素である。しかし、それら微量物質の輸送過程についてはまだ不明な点が多い。本研究では、輸送現象の中でも雲対流による鉛直向きの物質輸送、特に境界層とその直上の気層とを含む下部対流圏に影響をもたらす輸送に注目し、大気混合層や対流雲の細かな構造が表現できる2次元warm rainモデルを用いて、仮想的なEuler-tracerを流す数値実験を行い、雲対流の鉛直輸送効果について調べた。 The distributions of O3 and SO2 is very important for the climate of the earth.However we have little known the mechanism of the formation of distribution.In this work, the role of lower cumulus convection in mixing processes between atmospheric boudary layer and the upper layer above it is studied. To investigate such a vertical transport, 2-D warm rain numerical model with high resolution grid is used to simulate the fine structures of plume in atmospheric boundary layer and convective cloud. The tracer experiments by introducing inert substances is performed, so it is found that the process of vertical transports is quite unlike turbulence diffusion mechanism. |
| Databáze: | OpenAIRE |
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