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XIX.—On the Diurnal Oscillations of the Barometer. Part I.
Published online by Cambridge University Press: 17 January 2013
Extract
Of the periodical variations of atmospheric pressure the best marked are the diurnal oscillations which in tropical and sub-tropical regions are among the most regular of recurring phenomena. In higher latitudes these oscillations become from day to day gradually more and more masked, owing to the frequent fluctuations to which atmospheric pressure is there subjected. If, however, hourly observations continue to be regularly made for some time, the diurnal oscillation becomes apparent in the averages deduced from them.
- Type
- Research Article
- Information
- Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 27 , Issue 3 , 1875 , pp. 397 - 423
- Copyright
- Copyright © Royal Society of Edinburgh 1875
References
page 401 note * Some of the mean oscillations given in Kaemtz’s “Meteorology” have also been used in constructing the charts, the figures, however, being treated merely as rough approximations, seeing that Kaemtz’s “mean oscillations” represent only the mean difference of the two maxima and two minima.
Weight has also been given in drawing the lines to what appears to be, in a few cases, an undue sluggishness in the movements of the barometer, which the returns for Seftenberg, Bologna, Berne, Port Said, Ajmere, Jhansie, False Point, Nassau and Caraccas, seem to suggest.
page 410 note * Near sea-level.
page 418 note * Calculated from observations taken at sea.
page 419 note * From On the Use of the Barometer, by MajorWilliamson, K. S.Google Scholar. The observations, generally for short periods, were made under Major Williamson’s directions.
page 420 note * From On the Use of the Barometer, by MajorWilliamson, K. S.Google Scholar. The observations, generally for short periods, were made under Major Williamson’s directions.
page 223 note * Observations made at 7.25 A.M. and 4.25 P.M. Civil Time of Toronto.