Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-09T09:50:50.934Z Has data issue: false hasContentIssue false
  • English
  • Français

IX.—On some Causes of the Formation of Anticyclonic Stratus as observed from Aeroplanes

Published online by Cambridge University Press:  15 September 2014

C. K. M. Douglas
Get access

Summary

The following is a summary of the more important conclusions which have been put forward in this paper:—

1. The Nature and Distribution of Stratus in Anticyclones.

(1) Stratus clouds have an adiabatic temperature gradient below them, and a reversed gradient above them; within the cloud the gradient is usually adiabatic. The same relations hold for well-defined layers of haze.

(2) On the northern and eastern sides of anticyclones there is nearly always a layer of stratus, or of haze with cloud patches; the height of this layer varies between 3000 and 6000 feet above the surface, but the level is usually the same over a very large area.

(3) Stratus is common in winter on the southern sides of anticyclones.

Type
Proceedings
Information
Proceedings of the Royal Society of Edinburgh , Volume 37 , 1918 , pp. 137 - 148
Copyright
Copyright © Royal Society of Edinburgh 1918

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

page 137 note * “Weather Observations from an Aeroplane,” Journal of the Scottish Met. Soc., vol. xvii, No. 33, pp. 65–73.

page 140 note * “Principia Atmospherica: a Study of the Circulation of the Atmosphere,” Proc. Roy. Soc. Edin., vol. xxxiv, 1914, pp. 77–112.

page 141 note * The Structure of the Atmosphere in Olear Weather, by Cave, C. J. P., Cambridge, The University Press, 1912.Google Scholar

page 141 note † “Upper Air Calculus and the British Soundings during the International Week (May 5–10) 1913,” Journal of the Scottish Met. Soc., vol. xvi, No. 30, pp. 167–178.

page 142 note * Mechanical mixing due to turbulent motion. See Note at end.

page 143 note * Probably the turbulence of the lower layers is of importance in these cases; otherwise there would probably be an adiabatic gradient up to the level of greatest wind velocity, and above that a constant low gradient. See Note at end.

page 146 note * See Note at end. The turbulent motion of the lower strata may reduce the temperature of layers even above 2000 feet, and the reversed gradient above the clouds be caused in this way.

page 147 note * “Eddy Motion in the Atmosphere,” Phil. Trans., A series, vol. 215 (1915), pp. 1–26. See also Report on the Work carried out by the S.S. “Scotia,” 1913, London, 1914 (H.M. Stationery Office).