Titan Surface Temperatures during the Cassini Mission
| Autor: | Virgil G. Kunde, V. Cottini, Tetsuya Tokano, R. K. Achterberg, M. S. Kaelberer, Athena Coustenis, M. E. Segura, Conor A. Nixon, E. Guandique, N. Gorius, D. E. Jennings, F. M. Flasar, Robert E. Samuelson, Paul N. Romani |
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| Přispěvatelé: | NASA Goddard Space Flight Center (GSFC), Institut für Geophysik und Meteorologie [Köln], Universität zu Köln, Department of Astronomy [College Park], University of Maryland [College Park], University of Maryland System-University of Maryland System, Science Systems and Applications, Inc. [Lanham] (SSAI), University of Florida [Gainesville] (UF), Laboratoire d'études spatiales et d'instrumentation en astrophysique (LESIA (UMR_8109)), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
North pole
Physics 010504 meteorology & atmospheric sciences Subsolar point Astronomy and Astrophysics Atmospheric sciences 01 natural sciences Latitude symbols.namesake 13. Climate action Space and Planetary Science [SDU]Sciences of the Universe [physics] General Circulation Model 0103 physical sciences symbols Solstice Titan (rocket family) [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] 010303 astronomy & astrophysics ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences |
| Zdroj: | The Astrophysical journal letters The Astrophysical journal letters, Bristol : IOP Publishing, 2019, 877 (1), pp.L8. ⟨10.3847/2041-8213/ab1f91⟩ |
| ISSN: | 2041-8205 2041-8213 |
| DOI: | 10.3847/2041-8213/ab1f91⟩ |
| Popis: | By the close of the Cassini mission in 2017 the Composite Infrared Spectrometer had recorded surface brightnesstemperatures on Titan for 13 yr (almost half a Titan year). We mapped temperatures in latitude from pole to pole inseven time segments from northern mid-winter to northern summer solstice. At the beginning of the mission thewarmest temperatures were centered at 13 S where they peaked at 93.9 K. Temperatures fell off by about 4 Ktoward the north pole and 2 K toward the south pole. As the seasons progressed the warmest temperatures shiftednorthward, tracking the subsolar point, and at northern summer solstice were centered at 24 N. While moving norththe peak temperature decreased by about 1 K, reaching 92.8 K at solstice. At solstice the fall-off toward the northand south poles were 1 K and 3 K, respectively. Thus the temperature range was the same 2 K at the two poles. Ourobserved surface temperatures agree with recent general circulation model results that take account of methanehydrology and imply that hemispherical differences in Titan's topography may play a role in the north?southasymmetry on Titan. |
| Databáze: | OpenAIRE |
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