تقرير
Titan Surface Temperatures During the Cassini Mission
| العنوان: | Titan Surface Temperatures During the Cassini Mission |
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| المؤلفون: | Jennings, D. E, Tokano, T, Cottini, V, Nixon, C. A, Achterberg, R. K, Flasar, F. M, Kunde, V. G, Romani, P. N, Samuelson, R. E, Segura, M. E, Gorius, N. J. P, Guandique, E, Kaelberer, M. S, Coustenis, A |
| المصدر: | The Astrophysical Journal Letters. 877(1) |
| بيانات النشر: | United States: NASA Center for Aerospace Information (CASI), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Space Sciences (General) |
| الوصف: | 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. |
| نوع الوثيقة: | Report |
| اللغة: | English |
| تدمد: | 2041-8213 2041-8205 |
| DOI: | 10.3847/2041-8213/ab1f91 |
| URL الوصول: | https://ntrs.nasa.gov/citations/20190028791 |
| ملاحظات: | 80GSFC17M0002 |
| رقم الأكسشن: | edsnas.20190028791 |
| قاعدة البيانات: | NASA Technical Reports |
| تدمد: | 20418213 20418205 |
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| DOI: | 10.3847/2041-8213/ab1f91 |