High time-resolution infrared imaging observations of Jupiter

Details High time-resolution infrared imaging observations of Jupiter High time-resolution infrared imaging observations of Jupiter

Jan 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994phdt........11f&link_type=abstract

PhD Dissertation, California Univ. San Diego, CA United States

Computer Science

3

Atmospheric Temperature, Brightness Temperature, Infrared Imagery, Oscillations, Jupiter Atmosphere, Fourier Analysis, Infrared Radiation, Planetary Radiation, Temperature Distribution

Scientific paper

This thesis investigates the possible existence of Jovian p-mode oscillations and the general thermal morphology of the Jovian troposphere. The investigations were made using time-series imaging infrared observational data. The p-modes are expected to be highly adiabatic because of the long radiative damping time of the Jovian troposphere. Thus observations of infrared brightness temperature fluctuations are a sensitive method for their detection. An observing passband of 0.5 microns at 20 microns was chosen because of its high sensitivity to temperature variations and insensitivity to local atmospheric compositional variations. The results of the search for Jovian p-mode oscillations are negative, but the amplitude constraints are significantly improved. The total amplitude limit for the existence of a broad spectrum of high degree p-modes is placed at 1 mK in brightness temperatures at 20 microns (equivalent to less than 20 cm/s). Comparisons with previously published reports of Jovian p-mode detections are inconclusive. The thermal features, wave-like small amplitude temperature structures, are also investigated. The thermal feature morphology was mapped covering a latitude range of approximately +/- 25 deg on three days with complete longitude coverage and on a fourth day with incomplete longitude coverage. This thesis offers the first confirmation and the first ground-based observation, across a wide latitude range, of the System III rotation rate of the thermal features. Fourier analysis of the thermal features does not show evidence of preferred wavenumbers when comparisons are made with previously published analyses. Significantly, evolution of the thermal features was observed on time scales as short as several Jovian rotations.

Affiliated with

Also associated with

No associations

Rating

High time-resolution infrared imaging observations of Jupiter 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 High time-resolution infrared imaging observations of Jupiter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High time-resolution infrared imaging observations of Jupiter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1684840