An exploratory study in search of hurricane existences on other planets in the Solar System was conducted and presented in this report. A comparative approach was adopted by applying vortex theory on axis-symmetric inviscid vortical flows to terrestrial hurricanes and other selected known atmospheric vortices on other planets, in order to provide the arguments and to come to a conclusion regarding the existence of hurricane-like vortices on other planets.
The research was conducted by digital extractions of measurements from exploratory space crafts and ground-based observatories and the application of a power law model fitting to the data, as the velocity profile of a hurricane’s radial structure was known to have a decay rate well described by the exponent in a power law model. This thesis has highlighted the fact that the flow characteristics of the subjects constitute the main aspect for this research. Combine plots of normalised radial distance versus velocities, circulation and relative vorticities were also presented.
Combining analytical results from the vortex theory used with brief geological and atmospheric conditions, the research has found disagreements with well-known beliefs pertaining to the Venusian dipolar polar vortices, the Saturnian North Hexagonal Vortex and South Polar Vortex that they were of hurricane-like characteristics. The Great Red Spot of Jupiter was found to have regions in the east-west direction nearer to the collar to possess hurricane-like flow characteristics. Mars was found not to possess any atmospheric vortices of synoptic scale, with only dust devil occurrences being recorded. It remains as hypotheses only, that hurricane-like vortices may still exist on Uranus and Neptune due to the absence of high resolution velocity measurements of the Uranian cloud features and Neptune’s Great Dark Spot. Mercury had been omitted from this research because of the absence of atmosphere, while the research topic was briefly extended by discussions of possibilities on dwarf planets Pluto and Eris, and natural satellites Titan and Triton.