Summary
The down valley acceleration of the valley-plain wind is investigated. Under steady state conditions, for short distances along the axis of the valley, there is a linear relationship between the square of the mean velocity of the valley-plain wind and the distance along the axis.
The theory shows that if there is an acceleration along the down-valley direction, the air has to come into the valley at the top in order to preserve continuity of the mass.
Zusammenfassung
Die talabwärts gerichtete Beschleunigung des Bergwindes wird untersucht. Unter stationären Bedingungen gilt für kurze Distanzen entlang der Talachse eine lineare Beziehung zwischen dem Quadrat der mittleren Geschwindigkeit des Bergwindes and dem Abstand entlang der Achse.
Die Theorie zeigt, daß für den Fall einer talabwärts gerichteten Beschleunigung Luft von oben her ins Tal nachgeführt werden muß, um Massenkontinuität zu gewährleisten.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Davidson, B., and P. K. Rao: Preliminary Report on Valley Wind Studies in Vermont, 1957. Final report Contract No. AF 19(604)-1971, Res. Div., College of Engineering, New York University, 1958.
Davidson, B.: Local Wind System. Quart. Progress Report No. 2, Contract No. DA-36-039-sc-78127, Res. Div., College of Engineering, New York University, 1959.
Davidson, B.: Observations and Theory of Local Wind Systems. Quart. Progress Report No. 3, Contract No. DA-36-039-sc-78127, Res. Div., College of Engineering, New York University, 1959.
Defant, F.: Zur Theorie der Hangwinde nebst Bemerkungen zur Theorie der Berg- and Talwinde. Arch. Met. Geoph. Biokl., A, 1, 421–450 (1949).
Gleeson, T. A.: Effects of Various Factors and Valley Winds. J. Meteor. 10, 262–269 (1953).
Rao, Krishna P.: Theoretical Investigation of the Change of Wind Speed Along the Axis of the Valley, Progress Report No. 5, Contract No. DA-36039-sc-78127, U. S. Army Signal Res. and Develop. Lab., College of Engineering, New York University, 1960.
Rao, Krishna P.: An Investigation of the Valley-Plain Wind in the Valleys of Vermont, 110 pp. Ph. D. Dissertation, Department of Meteorology and Oceanography, New York University, 1968.
Author information
Authors and Affiliations
Additional information
Part of a dissertation in the Department of Meteorology and Oceanography in partial fulfillment of the requirements for the degree of Doctor of Philosophy at New York University.
Part of the research was supported by U. S. Army Signal Research and Development Laboratory, Fort Monmouth, New Jersey, under Contract No. DA-36-039sc-78127.
This paper is dedicated to the late Professor Ben Davidson.
Rights and permissions
About this article
Cite this article
Rao, P.K. Theoretical Investigation of the Change of Wind Speed along the Axis of a Valley. Arch. Met. Geoph. Biokl. A. 19, 59–70 (1970). https://doi.org/10.1007/BF02274642
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02274642