Jupiter's atmosphere - Observations and interpretation of the microwave spectrum near 1.25-cm wavelength

Details Jupiter's atmosphere - Observations and interpretation of the microwave spectrum near 1.25-cm wavelength Jupiter's atmosphere - Observations and interpretation of the microwave spectrum near 1.25-cm wavelength

Jul 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978icar...35...44k&link_type=abstract

Icarus, vol. 35, July 1978, p. 44-60.

Astronomy and Astrophysics

Astronomy

7

Astronomical Spectroscopy, Atmospheric Models, Atmospheric Temperature, Jupiter Atmosphere, Microwave Spectra, Absorption Spectra, Ammonia, Atmospheric Pressure, Brightness Temperature, Heat Transfer, Tables (Data), Temperature Profiles, Thermal Radiation

Scientific paper

Measurements of Jupiter's disk-temperature spectrum in the 20- to 24-GHz (1.5 cm less than lambda less than 1.25 cm) region are reported. These data are combined with previously published data to produce a uniformly calibrated thermal spectrum of Jupiter in the wavelength interval 0.85 to 2.1 cm. Model studies are carried out to determine optimum pressure-temperature profiles for an assumed radiative-convective temperature structure. It is found that the temperature at the 1-bar total effective pressure level is between 140 and 165 K, with a most probable value of 153 K, provided that NH3 is uniformly saturated in the clouds on a global scale. We show that the temperature profile for the microwave model is approximately 20 K cooler than the profiles derived from infrared data. An explanation of this discrepancy is discussed in terms of a model which invokes different NH3 distributions in the belts and zones.

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