TITAN'S ATMOSPHERE AND SURFACE

摘要: This review is based on the report of 1973 Titan Atmosphere Workshop ( The , NASA SP-340, 1974). interior presumably dominated by a melted NH3 - H2O solution, and presence CH4 suggested its abundance in atmosphere. There also evidence for H2, although very high escape rate implied. Nitrogen, from photolysis, could help retarding this escape. Several lines suggest clouds haze; both frozen organic polymers are plausible. thermal-emission spectrum shows peaks at 8 12 μ m, due to C2H6 warm stratosphere, but no minimum 17 μm pressure-induced H2 greenhouse. A decline brightness temperature longer wavelengths suggests weak greenhouse effect absorption CH4. surface near 125°K weight evidence, value as low 90°K not excluded.