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).
- 0305 Atmospheric composition and structure: Aerosols and particles (0345, 4801)
- 0317 Atmospheric composition and structure: Chemical kinetic and photochemical properties
- 0320 Atmospheric composition and structure: Cloud physics and chemistry
- 0343 Atmospheric composition and structure: Planetary atmospheres (5405, 5407, 5409, 5704, 5705, 5707)
- 5494 Planetology: Solid surface planets: Instruments and techniques
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)