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http://hdl.handle.net/20.500.12386/31330
Title: | Two-Year Observations of the Jupiter Polar Regions by JIRAM on Board Juno | Authors: | ADRIANI, Alberto Bracco, A GRASSI, Davide Moriconi, ML MURA, Alessandro Orton, G ALTIERI, FRANCESCA Ingersoll, A Atreya, SK Lunine, JI MIGLIORINI, Alessandra NOSCHESE, RAFFAELLA CICCHETTI, ANDREA SORDINI, Roberto TOSI, Federico SINDONI, Giuseppe PLAINAKI, CHRISTINA Dinelli, BM TURRINI, Diego FILACCHIONE, GIANRICO PICCIONI, GIUSEPPE Bolton, SJ |
Issue Date: | 2020 | Journal: | JOURNAL OF GEOPHYSICAL RESEARCH (PLANETS) | Number: | 125 | Issue: | 6 | Abstract: | We observed the evolution of Jupiter's polar cyclonic structures over two years between February 2017 and February 2019, using polar observations by the Jovian InfraRed Auroral Mapper, JIRAM, on the Juno mission. Images and spectra were collected by the instrument in the 5-μm wavelength range. The images were used to monitor the development of the cyclonic and anticyclonic structures at latitudes higher than 80° both in the northern and the southern hemispheres. Spectroscopic measurements were then used to monitor the abundances of the minor atmospheric constituents water vapor, ammonia, phosphine, and germane in the polar regions, where the atmospheric optical depth is less than 1. Finally, we performed a comparative analysis with oceanic cyclones on Earth in an attempt to explain the spectral characteristics of the cyclonic structures we observe in Jupiter's polar atmosphere. | URI: | http://hdl.handle.net/20.500.12386/31330 | URL: | https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2019JE006098 | ISSN: | 2169-9097 | DOI: | 10.1029/2019JE006098 | Bibcode ADS: | 2020JGRE..12506098A | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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