Thermal maps of Jupiter - Spatial organization and time dependence of stratospheric temperatures, 1980 to 1990

Details Thermal maps of Jupiter - Spatial organization and time dependence of stratospheric temperatures, 1980 to 1990 Thermal maps of Jupiter - Spatial organization and time dependence of stratospheric temperatures, 1980 to 1990

Apr 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991sci...252..537o&link_type=abstract

Science (ISSN 0036-8075), vol. 252, April 26, 1991, p. 537-542. Research supported by NASA and National Research Council of Cana

Astronomy and Astrophysics

Astronomy

41

Atmospheric Temperature, Jupiter Atmosphere, Methane, Thermal Mapping, Annual Variations, Astronomical Spectroscopy, Planetary Atmospheres, Jupiter, Thermal Properties, Mapping, Atmosphere, Stratosphere, Waves, Temperature, Emissions, Seasonal Variation, Radiative Processes, Cycles, Longitude, Amplitude, Timescale, Velocity, Earth-Based Observations, Procedure, Structure, Intensity, Zoning, Analysis, Latitude, Symmetry, Meteorology, Circulation, Dynamics, Oscillations

Scientific paper

The spatial organization and time dependence of Jupiter's stratospheric temperatures have been measured by observing thermal emission from the 7.8-micrometer CH4 band. These temperatures, observed through the greater part of a Jovian year, exhibit the influence of seasonal radiative forcing. Distinct bands of high temperature are located at the poles and midlatitudes, while the equator alternates between warm and cold with a period of approximately 4 years. Substantial longitudinal variability is often observed within the warm midlatitude bands, and occasionally elsewhere on the planet. This variability includes small, localized structures, as well as large-scale waves with wavelengths longer than about 30,000 kilometers. The amplitudes of the waves vary on a time scale of about 1 month; structures on a smaller scale may have lifetimes of only days. Waves observed in 1985, 1987, and 1988 propagated with group velocities less than + or - 30 meters/sec.

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