| Title: |
Titan's Atmospheric Temperatures, Winds, and Composition |
| Authors: |
Flasar, Michael; Achterberg, Richard K.; Conrath, Barney J.; Gierasch, Peter J.; Kunde, Virgil G.; Nixon, Conor A.; Bjoraker, Gordon L.; Jennings, Donald E.; Romani, Paul N.; Simon-Miller, Amy A.; Bézard, Bruno; Coustenis, Athéna; Irwin, Patrick G. J.; Teanby, Nicholas A.; Brasunas, J.; Pearl, John C.; Segura, M. E.; Carlson, Ronald C.; Mamoutkine, Andrei; Schinder, P. J.; Barucci, Maria Antonella; Courtin, Régis; Fouchet, Thierry; Gautier, Daniel; Lellouch, Emmanuel; Marten, André; Prangé, Renée; Vinatier, Sandrine; Strobel, Darell; Calcutt, Simon B.; Read, Peter L.; Taylor, Frederic W.; Bowles, N.; Samuelson, Robert E.; Orton, Glenn S.; Spilker, Linda J.; Owen, Tobias C.; Spencer, John R.; Showalter, Mark R.; Ferrari, C.; Abbas, Mian M.; Raulin, François; Edgington, Scott G.; Ade, Peter A.; Wishnow, E. H. |
| Contributors: |
NASA Goddard Space Flight Center (GSFC); Science Systems and Applications, Inc. Lanham (SSAI); Department of Astronomy, Cornell University; University of Maryland College Park (UMD); University System of Maryland; 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; QSS Group; Johns Hopkins University Baltimore (JHU); Jet Propulsion Laboratory (JPL); NASA-California Institute of Technology (CALTECH); Institute for Astronomy, University of Hawaii; Department of Space Studies, Southwest Research Institute; Search for Extraterrestrial Intelligence Institute (SETI Institute); Commissariat à l'énergie atomique et aux énergies alternatives (CEA); 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; Lawrence Livermore National Laboratory (LLNL) |
| Source: |
ISSN: 0036-8075. |
| Publisher Information: |
CCSD; American Association for the Advancement of Science (AAAS) |
| Publication Year: |
2005 |
| Subject Terms: |
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
| Description: |
International audience ; Temperatures obtained from early Cassini infrared observations of Titan show a stratopause at an altitude of 310 kilometers (and 186 kelvin at 15°S). Stratospheric temperatures are coldest in the winter northern hemisphere, with zonal winds reaching 160 meters per second. The concentrations of several stratospheric organic compounds are enhanced at mid- and high northern latitudes, and the strong zonal winds may inhibit mixing between these latitudes and the rest of Titan. Above the south pole, temperatures in the stratosphere are 4 to 5 kelvin cooler than at the equator. The stratospheric mole fractions of methane and carbon monoxide are (1.6 +/- 0.5) × 10 -2 and (4.5 +/- 1.5) × 10 -5 , respectively. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
BIBCODE: 2005Sci.308.975F |
| DOI: |
10.1126/science.1111150 |
| Availability: |
https://hal.science/hal-03785584; https://doi.org/10.1126/science.1111150 |
| Accession Number: |
edsbas.A66941D8 |
| Database: |
BASE |