IRTF Data Archive Program Information

# # Program information file # PROGRAM_ID 2021A034 PROGRAM_TITLE Characterizing Jupiter's Deep Belt/Zone Structure via Juno-TEXES Comparisons PROGRAM_INV1 Arrate Antunano PROGRAM_INV2 Leigh Fletcher PROGRAM_INV3 Thomas Greathouse PROGRAM_INV4 Glenn Orton PROGRAM_INV5 Rohini Giiles PROGRAM_SCICAT solar system PROGRAM_ABSTRACT_BEG The TEXES archive of spectroscopic mapping of Jupiter's 5 to 20-um infrared spectrum now spans half a Jovian year, allowing us to study both short-term meteorological activity and long-term cyclic variations in the conditions of the belts and zones. Our 2021 observing proposal of low- and medium-resolution TEXES spectroscopy in twelve spectral settings will be inverted to map Jupiter's tropospheric and stratospheric temperatures, aerosols, and gases to provide a baseline for interpretation of Juno's remote sensing investigations [particularly the microwave sensing of the deep atmosphere]. Since late 2018 Jupiter's atmosphere has undergone several unusual disturbances, affecting the equatorial region, the Great Red Spot [GRS] and the North Temperate Belt [NTB, 21degrees-28degrees N]. These observations will provide the opportunity to investigate how these disturbances influence the temperature and ammonia distributions. A global map of Jupiter is proposed near to Juno's 34th perijove to [a] characterize long-term variations in Jupiter's belt/zone structure, and to relate these to changes observed by Juno's Microwave Radiometer at deeper levels throughout the first five years of the Juno mission; and [b] determine the present state of stratospheric circulation and waves to understand the coupling between tropospheric meteorology and stratospheric heating. PROGRAM_ABSTRACT_END