Global-scale surface spectral variations on Titan seen from Cassini/VIMS
We present global-scale maps of Titan from the Visual and Infrared Mapping Spectrometer (VIMS) instrument on Cassini. We map at 64 near-infrared wavelengths simultaneously, covering the atmospheric windows at 0.94, 1.08, 1.28, 1.6, 2.0, 2.8, and 5 ??m with a typical resolution of 50 km/pixel or a typical total integration time of 1 s. Our maps have five to ten times the resolution of ground-based maps, better spectral resolution across most windows, coverage in multiple atmospheric windows, and represent the first spatially resolved maps of Titan at 5 ??m. The VIMS maps provide context and surface spectral information in support of other Cassini instruments. We note a strong latitudinal dependence in the spectral character of Titan's surface, and partition the surface into 9 spectral units that we describe in terms of spectral and spatial characteristics. ?? 2006 Elsevier Inc. All rights reserved.
Citation Information
Publication Year | 2007 |
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Title | Global-scale surface spectral variations on Titan seen from Cassini/VIMS |
DOI | 10.1016/j.icarus.2006.08.021 |
Authors | J. W. Barnes, R. H. Brown, L. Soderblom, B. J. Buratti, Christophe Sotin, S. Rodriguez, S. Le Mouelic, K. H. Baines, R. Clark, P. Nicholson |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Icarus |
Index ID | 70033153 |
Record Source | USGS Publications Warehouse |