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Two-Dimensional Chemistry Transport Model

Two-Dimensional Chemistry Transport Model. 11/16/2006. Overview. Offline 2-D CTM (Caltech/JPL Kinetics model) ThinAir Model (Two-and-a-Half-dimesional INter-Active Isentropic Research model, J. Kinnersley and K. K. Tung) Discussion.

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Two-Dimensional Chemistry Transport Model

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  1. Two-Dimensional Chemistry Transport Model 11/16/2006

  2. Overview • Offline 2-D CTM (Caltech/JPL Kinetics model) • ThinAir Model (Two-and-a-Half-dimesional INter-Active Isentropic Research model, J. Kinnersley and K. K. Tung) • Discussion

  3. Continuity Equation for Chemical Species (Morgan et al. 2004) Advection (V and W or Streamfuction) 2. Eddy Diffusion (Kyy) 3. Vertical Diffusion (Kzz) 4. Chemical Sources and Sinks 5. Resolution and Vertical Coordinate 6. Numeical Scheme and Time Spliting

  4. Interactive 2-D CTM Dynamics Model Radiation code Chemistry Transport Model Interactions between the three Modules

  5. ThinAir Model Isentropic Coordinate Two and a Half Dimensional Dynamics Model (zonally averaged dynamics plus three longest planetary waves) Planetary Wave Breaking Parameterization for Kyy Gravity Wave Breaking Parameterization for Kzz

  6. ThinAir Model 5. Radiation (J. Haigh, 1984): UV and Visible (O3 and O2) NIR (H2O, CO2, O2, CH4 and N2O) IR (H2O, CO2 and O3)

  7. ThinAir Model 6. Chemistry: 45 Species Rate Data from DeMore et al. (1992) PSC Parameterization and Heterogeneous Reactions

  8. ThinAir Model 7. QBO-Source Term in the Momentum Equation: Wave Parameterization (Kinnersley, 1996b) Kelvin Waves and Rossby-Gravity Waves or Relaxation to Observed QBO (Singapore, 80-93) Winds (Kinnersley, 1998)

  9. Discussions 1. Climatology (Kinnersley, 1996) 2. Modification and Updating: Adding Solar Cycle QBO data and Lower Boundary Condition for Planetary Waves Extended to 2005 3. The use of ThinAir

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