Skip to main content
SearchLoginLogin or Signup

Mapping Temporal and Spatial Temperature Variations in Jupiter’s Upper Atmosphere

Presentation #326.02 in the session Origin and Evolution of Giant Planet Systems II (Poster)

Published onOct 23, 2023
Mapping Temporal and Spatial Temperature Variations in Jupiter’s Upper Atmosphere

It has been long known that the upper atmospheres of the giant planets are warmer than solar heating models alone would suggest. At present, the additional heat sources that would bridge the observed-to-modeled temperature gap are poorly constrained. To assist in solving this decades-long “Energy Crisis,” we have begun mapping derived temperatures on and around Jupiter’s Great Red Spot (GRS) to better understand primary heat origins and methods of transfer in an archetypal giant planet ionosphere.

We investigate the leading potential sources of heat, Jupiter’s aurorae and propagating waves from the lower atmosphere, by seeking temperature signatures indicative of their presence on timescales of hours, months, and years. The GRS is a major landmark of Jupiter’s surface, and a known location of significant turbulence as the largest storm in our Solar System. Focusing in this region provides the best opportunity to observe the significance of wave-heated hotspots in comparison to the equatorward migration of heat from the aurorae. Here, we present preliminary temperature maps of Jupiter’s upper atmosphere around the GRS from ground-based, infrared observations from 2019 - 2022 using Keck Observatory’s NIRSPEC and the Infrared Telescope Facility’s (IRTF) iSHELL instruments.

Comments
0
comment
No comments here