SPATIAL-ORGANIZATION AND TIME-DEPENDENCE OF JUPITER TROPOSPHERIC TEMPERATURES, 1980-1993

The spatial organization and time dependence of Jupiter's temperatures near 25O-millibar pressure were measured through a jovian year by ima ging thermal emission at 18 micrometers. The temperature field is infl uenced by seasonal radiative forcing, and its banded organization is c losely correlated with the visible cloud field. Evidence was found for a quasi-periodic oscillation of temperatures in the Equatorial Zone, a correlation between tropospheric and stratospheric waves in the Nort h Equatorial Belt, and slowly moving thermal features in the North and South Equatorial Belts. There appears to be no common relation betwee n temporal changes of temperature and changes in the visual albedo of the various axisymmetric bands.