On the Microbarometric Oscillation

[摘要] This paper aims at the report in the geophysical seminary of the Faculty of Science, Tokyo Imperial University. First, we compared two statoscopes made by Richard Frères in the same room, and the magnification was tested by using the lift in the Physical Institute. A capillary glass tube for the mercury thermometer was connected with the exhaustion cock in open state to avoid the scale out of the pen. We installed the instrument at Suginami and Takinogawa, which situate the west end and the northern parts of the city of great Tokyo respectively, Using the records at these two stations and at Kodimati, those from the apparatus in the forecast room of the Central Meteorological Observatory, we investigated the microbarometric ripples on the surface of discontinuity. However we missed the record in the rainy season of the early summer- “Tuyu”, we could record many oscillations in the autumn, and proved the ripples is progressive. The velocity and direction of propagation of ripples were calculated by the equation applied by Prof. G. Chrystal. The analysis for the rest records are now carried on, and the total report will be published another day.

[学科分类] 大气科学