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Diurnal Variation of Atmospheric Pressure

Nature volume 101, pages 253254 (30 May 1918) | Download Citation



THE effect of geographical latitude on the semidiurnal wave of atmospheric pressure is fairly regular and well marked, ibut the variation of the diurnal wave has attracted less attention since Angpt in 1887, and also Hann, showed conclusively its dependence on secondary local conditions. Three Japanese investigators from the Geophysical Seminary of the Physical Institute, Tokyo, contribute an account1 of a preliminary attempt to trace more detinitely the mechanism of these local influences, one of the most obvious of which, under the name of “continentality,” has recently been attracting the attention of Mr. C. E. P. Brooks in this country in connection with climate, and with a purely geographical theory of the Ice age.


  1. 1.

    On Diurnal Variation of Barometric Pressure.“ By , , and . Journal of the Gollege of Science, Imperial University of Tokyo, vol. xli., art. 1 (November 20, 1917).

  2. 2.

    The Semi-diurnal Horizontal Oscillation of the Free Atmosphere up to 10 km. above. Sea-level Deduced from Pilot-Balloon Observations at Batavia.“ By and . Proceedings Royal Acad. Amsterdam, vol. xx., pp. 119–35 + plate.

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