Accurate jovian radio flux density measurements show ammonia to be subsaturated in the upper troposphere |
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Authors: | James Gibson W.J. Welch Imke de Pater |
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Affiliation: | Radio Astronomy Laboratory, University of California, Berkeley, CA 94720, USA |
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Abstract: | The availability of new accurate radio flux densities of Jupiter in and around the λ?1.3 cm ammonia absorption band, one from ground-based radio data and five from the WMAP satellite, permits re-examination of the structure of the jovian upper troposphere. These flux densities, with accuracies of 1-3%, indicate that the jovian atmospheric ammonia is globally subsaturated within and above the ammonia cloud tops, 0.4 bar?P?0.6 bar, and subsolar (by a factor of 2) below the cloud base, 0.6 bar?P?2 bar. |
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Keywords: | Jupiter Atmosphere Radio observations |
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