Editorial Type:
Article
Article Type:
Research Article

The Transfer of Angular Momentum from Vortices to Gravity Swirl Waves

George Chimonas Georgia Institute of Technology, Atlanta, Georgia

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Heather M. Hauser Georgia Institute of Technology, Atlanta, Georgia

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Print Publication:
01 Jul 1997
DOI:
https://doi.org/10.1175/1520-0469(1997)054<1701:TTOAMF>2.0.CO;2
Page(s):
1701–1711
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Abstract

Gravity swirl waves are three-dimensional internal gravity waves in cylindrical coordinates. A radially propagating gravity swirl wave transports angular momentum from a central source region to distant regions of the atmosphere. Accordingly, atmospheric conditions that support propagating internal waves allow a vortex to decay by radiating away its rotation, while regions of neutral stability around the vortex insulate it from such losses. This may be a factor in determining whether convective storm cells attain strong rotation.

Corresponding author address: Dr. George Chimonas, School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332-0340.

Abstract

Gravity swirl waves are three-dimensional internal gravity waves in cylindrical coordinates. A radially propagating gravity swirl wave transports angular momentum from a central source region to distant regions of the atmosphere. Accordingly, atmospheric conditions that support propagating internal waves allow a vortex to decay by radiating away its rotation, while regions of neutral stability around the vortex insulate it from such losses. This may be a factor in determining whether convective storm cells attain strong rotation.

Corresponding author address: Dr. George Chimonas, School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332-0340.

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  • Bluestein, H. B., 1993: Synoptic-Dynamic Meteorology in Midlatitudes. Vol. 2, p. 492. Oxford University Press, 594 pp.

  • Chandrasekhar, S., 1961: The stability of more general flows between coaxial cylinders. Hydrodynamic and Hydromagnetic Stability. Dover Publishing, 343–381.

  • Gossard, E. E., and W. H. Hooke, 1975: Waves in the upper atmosphere. Waves In The Atmosphere. Elsevier Scientific Publishing, 399–423.

  • Hines, C. O., 1972: Momentum deposition by atmospheric waves, and its effects on the thermospheric circulation. Space Res.,12, 1157–1161.

  • Holton, J. R., 1979: Appendix D. An Introduction to Dynamic Meteorology. Academic Press, 371–372.

  • Howard, L. N., and A. S. Gupta, 1962: On the hydrodynamic and hydromagnetic stability of swirl flows. J. Fluid Mech.,14, 463–476.

  • Rotunno, R., 1978: A note on the stability of a cylindrical vortex. J. Fluid Mech.,87, 761–771.

  • Stoker, J. J., 1957: Waves on sloping beaches and past obstacles. Water Waves, Interscience, 115–149.

  • Wallace, J. M., and P. V. Hobbs, 1977: Atmospheric Science. An Introductory Survey. Academic Press, 467 pp.

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