Evidence for a Polar Ethane Cloud on Titan
- 15 September 2006
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 313 (5793) , 1620-1622
- https://doi.org/10.1126/science.1128245
Abstract
Spectra from Cassini's Visual and Infrared Mapping Spectrometer reveal the presence of a vast tropospheric cloud on Titan at latitudes 51° to 68° north and all longitudes observed (10° to 190° west). The derived characteristics indicate that this cloud is composed of ethane and forms as a result of stratospheric subsidence and the particularly cool conditions near the moon's north pole. Preferential condensation of ethane, perhaps as ice, at Titan's poles during the winters may partially explain the lack of liquid ethane oceans on Titan's surface at middle and lower latitudes.Keywords
This publication has 32 references indexed in Scilit:
- Episodic outgassing as the origin of atmospheric methane on TitanNature, 2006
- No oceans on Titan from the absence of a near-infrared specular reflectionNature, 2005
- Cassini Radar Views the Surface of TitanScience, 2005
- Imaging of Titan from the Cassini spacecraftNature, 2005
- The HITRAN molecular spectroscopic database: edition of 2000 including updates through 2001Journal of Quantitative Spectroscopy and Radiative Transfer, 2003
- Microphysical modeling of ethane ice clouds in titan's atmosphereIcarus, 2003
- Titan’s Clouds from Gemini and Keck Adaptive Optics ImagingThe Astrophysical Journal, 2002
- Titan's smile and collar: HST Observations of seasonal change 1994–2000Geophysical Research Letters, 2001
- Low-temperature infrared absorption of gaseous N2 and N2 + H2 in the 2.0–2.5 μm region: Application to the atmospheres of Titan and TritonIcarus, 1989
- Methane rain on TitanIcarus, 1988