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Two-year observations of the Jupiter polar regions by JIRAM on board Juno

Adriani, A. and Bracco, A. and Grassi, D. and Moriconi, M. L. and Mura, A. and Orton, G. and Altieri, F. and Ingersoll, A. and Atreya, S. K. and Lunine, J. I. and Migliorini, A. and Noschese, R. and Cicchetti, A. and Sordini, R. and Tosi, F. and Sindoni, G. and Plainaki, C. and Dinelli, B. M. and Turrini, D. and Filacchione, G. and Piccioni, G. and Bolton, S. J. (2020) Two-year observations of the Jupiter polar regions by JIRAM on board Juno. Journal of Geophysical Research. Planets, 125 (6). Art. No. e2019JE006098. ISSN 2169-9097. doi:10.1029/2019je006098.

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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.

Item Type:Article
Related URLs:
URLURL TypeDescription
Adriani, A.0000-0003-4998-8008
Bracco, A.0000-0002-1619-6103
Grassi, D.0000-0003-1653-3066
Moriconi, M. L.0000-0003-2609-2620
Mura, A.0000-0002-4552-4292
Orton, G.0000-0001-7871-2823
Altieri, F.0000-0002-6338-8300
Ingersoll, A.0000-0002-2035-9198
Atreya, S. K.0000-0002-1972-1815
Lunine, J. I.0000-0003-2279-4131
Migliorini, A.0000-0001-7386-9215
Noschese, R.0000-0003-0502-0337
Cicchetti, A.0000-0002-9588-6531
Tosi, F.0000-0003-4002-2434
Sindoni, G.0000-0002-3348-7930
Plainaki, C.0000-0003-1483-5052
Dinelli, B. M.0000-0002-1218-0008
Turrini, D.0000-0002-1923-7740
Filacchione, G.0000-0001-9567-0055
Piccioni, G.0000-0002-7893-6808
Bolton, S. J.0000-0002-9115-0789
Additional Information:© 2020 American Geophysical Union. Accepted manuscript online: 28 May 2020; Manuscript accepted: 25 November 2019; Manuscript revised: 20 November 2019; Manuscript received: 21 June 2019. This work was supported by the Italian Space Agency through ASI-INAF contract I/010/10/0 and 2014-050-R.0. AA, DG, MLM, AMu, FA, AMi, RN, AC, RS, GS, CP, BMD, AT, GF, GP, and FT were supported by ASI. GO was supported by NASA with funds distributed to the Jet Propulsion Laboratory, California Institute of Technology. AI, SKA, JIL, and SJB were supported by the Juno Project. AB was supported by NSF OCE through grant 1658174.
Group:Astronomy Department
Funding AgencyGrant Number
Agenzia Spaziale Italiana (ASI)I/010/10/0
Agenzia Spaziale Italiana (ASI)2014-050-R.0
Subject Keywords:Jupiter; Planetary Atmosphere; Polar Regions; Composition; Mesoscale Dynamics
Issue or Number:6
Record Number:CaltechAUTHORS:20200528-153544686
Persistent URL:
Official Citation:Adriani, A., Bracco, A., Grassi, D., Moriconi, M. L., Mura, A., Orton, G., et al. ( 2020). Two‐year observations of the Jupiter polar regions by JIRAM on board Juno. Journal of Geophysical Research: Planets, 125, e2019JE006098.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:103532
Deposited By: Tony Diaz
Deposited On:28 May 2020 22:53
Last Modified:16 Nov 2021 18:22

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