The Formation of Clouds On Mt. Fuji

[摘要] The air current caused by the obstraction of Mt. Fuji will be shown by the vertical and horizontal diagrams of Mt. Fuji in Fig. 1 & 2, These pictures relate about the air currents adjacent to Mt. Fuji, how they make their way along the mountain side and they produce mountain cloud. The cloud is generated by the upward air urrent along the windward mountain slope and the counter current induced by the vortices in leeward side of mountain. The cloud form changes according to the wind volocity, and the cloud location is due to the distribution of humidity.The figures of cloud are studied by stereoscopic photographs and cinematographs. Fig. 3 & 4 are the cloud forms by vortex motion, the wind is stronger in Fig. 4 than in Fig. 3. Fig. 5 shows the figure of cap cloud. Fig. 6 & 7 are the kind of lenticular cloud and Fig. 7 shows the figure of vortex motion under the cloud. I suppose such clouds to be generated by the upheaval of air caused by vortex motion in leeward side of the mountain. The cloud figure of this kind sometimes resembles like a wing of bird shown by Fig. 6. I think such special cloud form should be named “wing cloud”

[学科分类] 大气科学