Water on Saturn: Global effects on ionospheric densities

Details Water on Saturn: Global effects on ionospheric densities Water on Saturn: Global effects on ionospheric densities

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufm.p41c1304m&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #P41C-1304

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2447 Modeling And Forecasting, 2459 Planetary Ionospheres (5435, 5729, 6026), 6275 Saturn

Scientific paper

For decades the radio occultation profiles of electron densities in Saturn's ionosphere measured by Pioneer 11 and Voyager have challenged the scientific community. The ionospheric peak altitude and densities could not be understood from simple photochemistry, so other mechanisms were proposed which could affect ionospheric densities. A leading candidate for modified photochemistry has been an influx of water from Saturn's rings and/or its moon Enceladus. This paper investigates the global effects of water on Saturn's ionosphere using a global circulation model (GCM). Our Saturn Thermosphere Ionosphere Model (STIM) has been used explore the consequences of different forms of the latitude distribution of the water influx. We also report on the horizontal and vertical structures of Saturn's ionosphere due to water influxes during different seasons.

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