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GEOPHYSICAL RESEARCH LETTERS,
VOL. 36,
L04204,
4 PP., 2009
doi:10.1029/2008GL036093
Vortex circulation on Venus: Dynamical similarities with terrestrial hurricanes
Space Science and Engineering Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
Space Science and Engineering Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
Space Science and Engineering Center, University of Wisconsin-Madison, Madison, Wisconsin, USA
IASF, INAF, Rome, Italy
Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany
Max Planck Institute for Solar System Research, Katlenburg-Lindau, Germany
Some dynamical and morphological similarities exist between the vortex organization of the atmosphere in the northern and southern hemispheres of Venus and the tropical cyclones/hurricanes on Earth. An S-shape feature detected in the center of the vortices on Venus from Pioneer Venus Orbiter and Venus Express observations has also been seen in tropical cyclones. This feature can be simulated with an idealized nonlinear and non-divergent barotropic model and, like in the vortices on Venus and in tropical cyclones, it is found to be transient. Given the challenges in measuring the deep, atmospheric circulation of Venus, the morphological similarities provide clues toward understanding the processes involved in the maintenance of Venus' atmospheric super rotation.
Received 2 October 2008; accepted 31 December 2008; published 25 February 2009.
Citation: (2009), Vortex circulation on Venus: Dynamical similarities with terrestrial hurricanes, Geophys. Res. Lett., 36, L04204, doi:10.1029/2008GL036093.
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