Spatially-resolved spectroscopy at 1.6 μm of titan's atmosphere and surface

M. Ádámkovics, I. de Pater, H. G. Roe, S. G. Gibbard, C. A. Griffith

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

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).

Original languageEnglish (US)
Pages (from-to)L17S05 1-4
JournalGeophysical Research Letters
Volume31
Issue number17
DOIs
StatePublished - Sep 16 2004

Keywords

  • 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

  • Geophysics
  • Earth and Planetary Sciences(all)

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