Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010dps....42.4811d&link_type=abstract
American Astronomical Society, DPS meeting #42, #48.11; Bulletin of the American Astronomical Society, Vol. 42, p.972
Astronomy and Astrophysics
Astronomy
Scientific paper
Laboratory measurements of the complex dielectric properties of aqueous ammonia, under conditions characteristic of Jovian clouds, have been made in the 2-8.5 GHz range at temperatures ranging from 24-60 oC and concentrations of 0-8.5% ammonia (NH3) by volume. No previous laboratory experiments have been made to characterize the microwave dielectric properties of aqueous ammonia. Previous models of Jovian microwave emission (de Pater et al., Icarus, 2005) have assumed that for low concentrations of ammonia in solution, the dielectric properties of aqueous ammonia are approximately equal to those of water; however, these measurements suggest that even at concentrations as low as 0.5% NH3 by volume, there is a marked difference in the complex dielectric properties of aqueous ammonia. Assuming Raleigh scattering, these measurements are applied to a cloud attenuation model to calculate the opacity of the Jovian aqueous ammonia clouds. These measurements will improve our understanding of the data collected by the Juno microwave radiometer (MWR) by characterizing the absorption properties of the aqueous ammonia present in the Jovian atmosphere.
This work was supported by NASA Contract NNM06AA75C from the Marshall Space Flight Center supporting the Juno Mission Science Team, under Subcontract 699054X from the South-west Research Institute.
Duong Danny
Steffes Paul Gregory
No associations
LandOfFree
The Microwave Properties of Jovian Clouds: Laboratory Measurement of Aqueous Ammonia (NH4OH) Between 2-8.5 GHz does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Microwave Properties of Jovian Clouds: Laboratory Measurement of Aqueous Ammonia (NH4OH) Between 2-8.5 GHz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Microwave Properties of Jovian Clouds: Laboratory Measurement of Aqueous Ammonia (NH4OH) Between 2-8.5 GHz will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1229789