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Stability of the Jupiter Southern Polar Vortices Inspected Through Vorticity Using Juno/JIRAM Data

Scarica, P. and Grassi, D. and Mura, A. and Adriani, A. and Ingersoll, A. and Li, C. and Piccioni, G. and Sindoni, G. and Moriconi, M. L. and Plainaki, C. and Altieri, F. and Cicchetti, A. and Dinelli, B. M. and Filacchione, G. and Migliorini, A. and Noschese, R. and Sordini, R. and Stefani, S. and Tosi, F. and Turrini, D. (2022) Stability of the Jupiter Southern Polar Vortices Inspected Through Vorticity Using Juno/JIRAM Data. Journal of Geophysical Research. Planets, 127 (8). Art. No. e2021JE007159. ISSN 2169-9097. doi:10.1029/2021je007159.

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The Jovian InfraRed Auroral Mapper (JIRAM) onboard the NASA Juno mission monitored the evolution of Jupiter’s polar cyclones since their first observation ever in February 2017. Data acquired by JIRAM have revealed cloudy cyclones organized in a complex, yet stable geometrical pattern at both poles. Several studies have investigated the dynamics and the structure of these cyclones, to understand the physical mechanisms behind their formation and evolution. In this work, we present vorticity maps deduced from the wind fields for the region poleward of ∼−80°, which has been extensively covered over the last four years of observations. The cyclonic features related to the stable polar cyclones are embedded in a slightly, but diffused anticyclonic circulation, in which short-living anticyclones emerge with respect to the surroundings. Although the general stability of both the cyclones and the whole system is strongly confirmed by this work, variations in the shape of the vortices, as well as changes in the local structures, have been observed.

Item Type:Article
Related URLs:
URLURL TypeDescription“.img” and “.lbl” files that have been used in this work ItemJIRAM data ItemData ItemData ItemData ItemData ItemData ItemData ItemData ItemData
Scarica, P.0000-0001-8836-0825
Grassi, D.0000-0003-1653-3066
Mura, A.0000-0002-4552-4292
Adriani, A.0000-0003-4998-8008
Ingersoll, A.0000-0002-2035-9198
Piccioni, G.0000-0002-7893-6808
Sindoni, G.0000-0002-3348-7930
Moriconi, M. L.0000-0003-2609-2620
Plainaki, C.0000-0003-1483-5052
Altieri, F.0000-0002-6338-8300
Cicchetti, A.0000-0002-9588-6531
Dinelli, B. M.0000-0002-1218-0008
Filacchione, G.0000-0001-9567-0055
Migliorini, A.0000-0001-7386-9215
Noschese, R.0000-0003-0502-0337
Stefani, S.0000-0001-5762-4947
Tosi, F.0000-0003-4002-2434
Turrini, D.0000-0002-1923-7740
Additional Information:This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. Accepted manuscript online: 11 July 2022. Manuscript accepted: 30 June 2022. Manuscript revised: 27 June 2022. Manuscript received: 16 December 2021. This work was supported by the Italian Space Agency (ASI) through ASI-INAF agreement n. 2016-23-H.0 and its addendum n. 2016-23-H.1-2018 and n. 2016-23-H.2-2021. Open Access Funding provided by Istituto nazionale di astrofisica within the CRUI-CARE Agreement. Data Availability Statement: JIRAM data used in this study (Noschese & Adriani, 2017a, 2017b) is publicly available on the NASA Planetary Data System ( The individual datasets are available at, where xxxx is 1004, 1028, 1030 or 1033 for EDR (Experiment Data Record; raw data) and 2004, 2028, 2030 or 2033 for RDR (Reduced Data Record; calibrated data) volumes. All the “.img” and “.lbl” files that have been used in this work, are reported in a repository (Scarica, 2022;
Funding AgencyGrant Number
Istituto Nazionale di Astrofisica (INAF)UNSPECIFIED
Agenzia Spaziale Italiana (ASI)2016-23-H.0
Agenzia Spaziale Italiana (ASI)2016-23-H.1-2018
Agenzia Spaziale Italiana (ASI)2016-23-H.2-2021
Subject Keywords:Jupiter; Planetary atmospheres; Polar regions
Issue or Number:8
Record Number:CaltechAUTHORS:20220711-652607000
Persistent URL:
Official Citation:Scarica, P., Grassi, D., Mura, A., Adriani, A., Ingersoll, A., Li, C., et al. (2022). Stability of the Jupiter southern polar vortices inspected through vorticity using Juno/JIRAM data. Journal of Geophysical Research: Planets, 127, e2021JE007159.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:115461
Deposited By: George Porter
Deposited On:12 Jul 2022 15:39
Last Modified:26 Aug 2022 20:53

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