THE DYNAMICS OF A VORTEX EMBEDDED IN A CONSTANT ZONAL CURRENT
Open Access
- 1 June 1953
- journal article
- Published by American Meteorological Society in Journal of Meteorology
- Vol. 10 (3) , 175-178
- https://doi.org/10.1175/1520-0469(1953)010<0175:tdoave>2.0.co;2
Abstract
The condition that the absolute vorticity be conserved is applied to the model of a symmetric vortex embedded in a constant zonal current. It is shown that the radial variation of the rotational component of the wind must then be according to the first-order Bessel function. The speed of propagation of the model vortex is found as a by-product of this result. Finally it is shown that the maximum wind in such a model can be determined from the depth of the corresponding pressure-height field and the size of the vortex. Abstract The condition that the absolute vorticity be conserved is applied to the model of a symmetric vortex embedded in a constant zonal current. It is shown that the radial variation of the rotational component of the wind must then be according to the first-order Bessel function. The speed of propagation of the model vortex is found as a by-product of this result. Finally it is shown that the maximum wind in such a model can be determined from the depth of the corresponding pressure-height field and the size of the vortex.Keywords
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