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A theory of stationary long waves. I - A simple theory of blocking. II - Resonant Rossby waves in the presence of realistic vertical shearsA theory of stationary long waves in the atmosphere is developed, with attention given to the blocking phenomenon caused by the resonant amplification of large-scale planetary waves in a uniform zonal flow and to resonant Rossby waves in an atmosphere with winds varying with height. A simple model is presented to illustrate the temporal behavior of Rossby waves forced by topography and differential heating of the land and the sea, using a beta-plane approximation and assuming a spatially uniform zonal wind which may vary in time, and quasi-geostrophic disturbances. Results are then extended to the case of resonant Rossby waves in the presence of realistic vertical shears. Numerical experiments in which the wind profiles are varied in a number of physically possible manners reveal the most favorable wind configurations for resonance.
Document ID
19790061451
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Tung, K. K.
(Harvard Univ. Cambridge, MA, United States)
Lindzen, R. S.
(Harvard University Cambridge, Mass., United States)
Date Acquired
August 9, 2013
Publication Date
June 1, 1979
Publication Information
Publication: Monthly Weather Review
Volume: 107
Subject Category
Meteorology And Climatology
Accession Number
79A45464
Funding Number(s)
CONTRACT_GRANT: NGL-22-007-228
CONTRACT_GRANT: NSF ATM-75-20156
Distribution Limits
Public
Copyright
Other

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