Modelling energy distribution in Jupiter's thermosphere

Details Modelling energy distribution in Jupiter's thermosphere Modelling energy distribution in Jupiter's thermosphere

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....5456s&link_type=abstract

EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #5456

Physics

Scientific paper

The temperature of the Jovian thermosphere is observed to be much higher than that expected from solar heating alone. One proposed additional heating mechanism is energy deposition due to particle precipitation in the auroral zones. A global circulation model (GCM) allows us to predict whether equatorward winds are capable of redistributing auroral energy to heat the whole thermosphere. A recently developed GCM of the Jovian neutral thermosphere has been used to model the global temperature profile. With solar insolation as the only energy source, the thermosphere is predicted, as expected, to be much cooler than is observed. We are currently experimenting with the addition of heating inputs equivalent to those caused by particle precipitation in the auroral zones, to determine whether this energy propagates equatorward.

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