WACCM: The High-Top Model - CESM - UCAR

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Temperature WACCM Heterogeneous Chemistry Module >200 K 188 K (T sat) 185 K (T nuc) Sulfate Aerosols (H 2O, H 2SO 4) - LBS k=1/4*V*SAD*γ (SAD from SAGEII) Sulfate Aerosols (H 2O, HNO 3, H 2SO 4) - STS Thermo. Model (Tabazadeh) Nitric Acid Hydrate (H 2O, HNO 3) – NAT R NAT = ƒ {Log Normal Size; # particles cc; width distribution; condensed phase HNO 3} ICE (H 2O, with NAT Coating) R ice= 10-30 μm ? R lbs = 0.1 μm R sts = 0.5 μm
WACCM Ozone Trend: CCMVal and WMO Antarctic Spring WACCM Redrawn from: Austin, J., et al., J. Geophys. Res., in press., 2010. does better than most models at calculating the evolution of the ozone hole.
Page 1 and 2: WACCM: The High-Top Model WACCM top
Page 3 and 4: WACCM Motivation Roble, Geophysical
Page 5 and 6: 50N EQ 50S Stratospheric Sulfate Su
Page 7 and 8: Volcanic heating in WACCM 2°N Surf
Page 9: Grading of Chemistry in CCMs: Chapt
Page 13 and 14: Acceleration of the Brewer-Dobson C
Page 15 and 16: Altitude (km) Impact of geoengineer
Page 17 and 18: Nuclear winter in WACCM4 Black Carb

WACCM: The High-Top Model - CESM - UCAR

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