On the Annual Variation of Pressure in the Upper Atmosphere

[摘要] Applying the Laplace's formula, the author tried to study the annual variation of the upper atmospheric pressure and temperature and obtained following results;1. The maximum amplitude of annual pressure variation occurs at a height of RT0/g i. e. about 8-9km., where T0 denotes the temperature of the earth surface.2. The correlations between temperature and pressure at several layers are the most close at the layer RT0/g.3. The annual mean deviation of temperature seems to increase gradually with height.4. Excepting near the earth surface, the annual mean deviation of presssure increases up to the height RT0/g and then decreases gradually.5. The average height of neutral surface of pressure is about 500-600m of high and 800-900m in summer and winter, and 200-300m in spring and autumn.6. The variation of temperature has a great influence upon the change of pressure and its effect seems to become larger with height.

[学科分类] 大气科学