| Title: |
An intense stratospheric jet on Jupiter |
| Authors: |
Flasar, Michael; Kunde, Virgil G.; Achterberg, Richard K.; Conrath, Barney J.; Simon-Miller, Amy A.; Nixon, Conor A.; Gierasch, Peter J.; Romani, Paul N.; Bézard, Bruno; Irwin, Patrick G. J.; Bjoraker, Gordon L.; Brasunas, J. C.; Jennings, Donald E.; Pearl, John C.; Smith, M. D.; Orton, Glenn S.; Spilker, Linda J.; Carlson, Robert; Calcutt, Simon B.; Read, Peter L.; Taylor, Frederic W.; Parrish, Paul David; Barucci, Maria Antonella; Courtin, Régis; Coustenis, Athéna; Gautier, Daniel; Lellouch, Emmanuel; Marten, André; Prangé, Renée; Biraud, Yvon; Fouchet, Thierry; Ferrari, C.; Owen, Tobias C.; Abbas, Mian M.; Samuelson, Robert E.; Raulin, François; Ade, Peter A.; Cesarsky, Catherine J.; Grossman, K. U.; Coradini, Angioletta |
| Contributors: |
University of Maryland College Park (UMD); University System of Maryland; Science Systems and Applications, Inc. Lanham (SSAI); Department of Astronomy, Cornell University; NASA Goddard Space Flight Center (GSFC); Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA); Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS); Physique des plasmas; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Pôle Planétologie du LESIA; Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA); Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité); Department of Atmospheric, Oceanic and Planetary Physics Oxford (AOPP); University of Oxford; Jet Propulsion Laboratory (JPL); NASA-California Institute of Technology (CALTECH); Commissariat à l'énergie atomique et aux énergies alternatives (CEA); Institute for Astronomy, University of Hawaii; NASA Marshall Space Flight Center (MSFC); Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)); Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité); Cardiff University; European Southern Observatory (ESO); Department of Physics, Gesamthochschule Wuppertal; Instituto di Astrofisica Spaziale - CNR, Area della recerca di Tor Vergata |
| Source: |
ISSN: 0028-0836. |
| Publisher Information: |
CCSD; Nature Publishing Group |
| Publication Year: |
2004 |
| Subject Terms: |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
| Description: |
International audience ; The Earth's equatorial stratosphere shows oscillations in which the east-west winds reverse direction and the temperatures change cyclically with a period of about two years. This phenomenon, called the quasi-biennial oscillation, also affects the dynamics of the mid- and high-latitude stratosphere and weather in the lower atmosphere. Ground-based observations have suggested that similar temperature oscillations (with a 4-5-yr cycle) occur on Jupiter, but these data suffer from poor vertical resolution and Jupiter's stratospheric wind velocities have not yet been determined. Here we report maps of temperatures and winds with high spatial resolution, obtained from spacecraft measurements of infrared spectra of Jupiter's stratosphere. We find an intense, high-altitude equatorial jet with a speed of ~140ms -1 , whose spatial structure resembles that of a quasi-quadrennial oscillation. Wave activity in the stratosphere also appears analogous to that occurring on Earth. A strong interaction between Jupiter and its plasma environment produces hot spots in its upper atmosphere and stratosphere near its poles, and the temperature maps define the penetration of the hot spots into the stratosphere. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
BIBCODE: 2004Natur.427.132F |
| Availability: |
https://hal.science/hal-03801111 |
| Accession Number: |
edsbas.597474A4 |
| Database: |
BASE |