Physics
Scientific paper
Aug 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3117s05a&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 17, CiteID L17S05
Physics
6
Atmospheric Composition And Structure: Aerosols And Particles (0345, 4801), Atmospheric Composition And Structure: Chemical Kinetic And Photochemical Properties, Atmospheric Composition And Structure: Cloud Physics And Chemistry, Atmospheric Composition And Structure: Planetary Atmospheres (5405, 5407, 5409, 5704, 5705, 5707), Planetology: Solid Surface Planets: Instruments And Techniques
Scientific paper
We present spatially-resolved, low-resolution (λ/Δλ ~ 1,500) spectroscopy of the leading hemisphere of Titan in the H-band (1.5-1.7 μm) using adaptive optics. Spatial variations of surface albedo are observed in images at 1.55-1.57 μm, which are clearly distinct from stratospheric haze. There is a significant increase in albedo around the southern (summer) pole at 1.62 μm. Using a plane-parallel radiative transfer model to fit the observed spectra, we find a 61% increase in tropopause haze opacity (τ = 0.100 from 30-40 km) around the southern pole relative to the rest of the disk (where τ = 0.062 from 30-40 km).
Adamkovics Mate
de Pater Imke
Gibbard Seran G.
Griffith Caitlin A.
Roe Henry Garfitt
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