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XVII.—The Mean Pressure of the Atmosphere and the Prevailing Winds over the Globe, for the Months and for the Year. Part II

Published online by Cambridge University Press:  17 January 2013

Alexander Buchan
Alexander Buchan
Affiliation:
Secretary of the Scottish Meteorological Society
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Extract

Charts, showing by Isobaric Lines the mean pressure of the atmosphere over the globe during the months of the year, may be justly regarded as furnishing the key to all questions of meteorological inquiry; for without the information conveyed by such charts it is impossible to discuss satisfactorily those questions which relate to prevailing winds, the varying temperature, and the rainfall throughout the year in the different countries of the world. It is to meet this desideratum that the Charts of Mean Atmospheric Pressure of the globe which are given with this paper are offered as the first approximate solution of this great physical problem.

Since Part I. was read in March 1868, valuable additional information has been obtained from Australia, New Zealand, Tasmania, Africa, South America, the west coast of North America, Iceland, Norway, and Sweden, and from several isolated stations in different parts of Europe and Asia. The period for the British Islands and a large portion of Europe has been extended so as to include the eleven years from 1857 to 1867.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 25 , Issue 2 , 1869 , pp. 575 - 637
Copyright
Copyright © Royal Society of Edinburgh 1869

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References

page 575 note * Proceedings of the Society, vol. vi. p. 303.

page 577 note * The original observations are given in Table I. in preference to the corrected means deduced from them.

page 579 note * Proceedings of the Roy. Soc. Edin. vol. vi. p. 465.

page 585 note * Atlas des Mouvements Généraux de l'Atmosphère pour 1864–5.

page 587 note * Some part of this diminished pressure in Asia is doubtless due to the condensation of the vapour of the south-west monsoon.

page 587 note † Dalton's, Meteorological Observations and Essays, 2d ed. Manchester, 1834, p. 100Google Scholar.

page 588 note * SirThomson, William in Mem. Lit, and Phil. Soc. Manchester, vol. ii. 3d series, p. 131Google Scholar.

page 590 note * Note of the Determination of Heights, chiefly in the interior of Continents, from Observations of Atmospheric Pressure.—“Proceedings of the Society,” vol. vi. p. 465.

page 590 note † In the southern hemisphere the low barometer will be to the right.

page 614 note * The uncorrected means were used in constructing the charts exhibited in reading Part I. of this paper.