Wind profile and vertical motions above an abrupt change in surface roughness and temperature |
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| Authors: | S Panchev E Donev N Godev |
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| Institution: | (1) Department of Meteorology, University of Sofia, Sofia, Bulgaria;(2) Geophysical Institute, Bulgarian Academy of Sciences, Sofia, Bulgaria |
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| Abstract: | A review is presented of some Russian-language papers published as early as 1952–1954 that are unknown to most English-speaking readers. In these papers the influence of an abrupt change in the surface friction velocityv
*, surface roughnessz
0 and surface temperature or heat flux on the wind velocity profile and vertical motions has been investigated analytically and numerically. Most of the theories are based on the exchange-coefficient approximation for momentum and heat. In terms of this approximation, further generalization and development of the problem is discussed.In an appendix, the Shwetz method for approximate solution of the boundary-layer partial differential equations is briefly described, using as an example an equation for which an exact solution is also possible. |
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