The Atmosphere of Venus

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• Fast Atmospheric Sulfur Cycles – Photochemical production <strong>of</strong> H 2 SO 4 – CO is consumed beneath the clouds • Slow Atmospheric – Distributes S between SO 2 , COS, and H 2 S, and S n . • Slow Geologic – Sulfides decompose to COS and H 2 S. – S is taken up by calcite conversion to anhydrite – Anhydrite converted back to sulfides.
Fast Atmospheric S Cycle CO 2 CO + O O + SO 2 SO 3 SO 3 + H 2 O H 2 SO 4 H 2 SO 4 H 2 O + SO 3 SO 3 + CO SO 2 + CO 2
Page 1 and 2: The Atmosphere of Venus! David Grin
Page 4 and 5: New York Times 2/26/1963
Page 6 and 7: The heavens … …now are seen to
Page 8 and 9: A luxuriant garden… ! ! !… of s
Page 10: Radiative Processes
Page 13: Cloud Particles: Chemical Propertie
Page 17 and 18: Geologic Sulfur Cycle 2H 2 S + 3O 2
Page 19 and 20: Large Impacts, Steam Atmospheres, H
Page 21: The Faint Young Sun and Early Venus
Page 24 and 25: Venus vs. Earth. Extreme desiccatio
Page 26: Role of Water in Plate Tectonics
Page 30 and 31: CO 2 Atmosphere-Mineral Equilibrium
Page 32 and 33: Radiative Transfer Model Non-grey,
Page 34 and 35: Climate Evolution • Radiative- Co
Page 36 and 37: SO 2 variations & cloud brightening
Page 38 and 39: Globally synchronous formation of w
Page 40 and 41: Figure 8. Mixing ratios assumed in
Page 42 and 43: Did Venus experience one great tran
Page 44 and 45: History of Venus: A Unified Scenari
Page 46 and 47: (D/H) VENUS = 120 ± 40 x (D/H) EAR
Page 48 and 49: Presently, the problem is underdete
Page 50 and 51: ASPERA! Escape of H+ occurs mostly
Page 52: Determination of wind fields from V
Page 55 and 56: Polar vortex dynamics Virtis data @
Page 58 and 59: UV UV 50 km NIR

The Atmosphere of Venus

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