Atmospheric Sciences 6150
Cloud System Modeling
Spring 2022

• Syllabus  (updated for Spring 2022)
  
• QCOM: A numerical model for simulating convection
• Fortran resources
• Fortran 77 tutorial
• An introduction to programming in Fortran 90
• Scope in Fortran 90
  
• Lectures (all dates are for 2022; this is a provisional schedule)
  
• Day 1 (Jan 11): High-resolution simulations
• Day 2 (Jan 13): Energy and water budgets, Numerical solution of buoyancy oscillations
  
• Day 3 (Jan 18): Fundamental equations, Scale analysis
• Day 4 (Jan 20): Pressure perturbations (Markowski & Richardson),
  
• Day 4 (Jan 20): Pressure perturbations and cumulus updrafts (Morrison)
  
• Day 5 (Jan 25): Convection from local sources (Emanuel 2.2-4, 2.7)
  
• Day 6 (Jan 27): Emanuel 2.7: notes(13-18), Fig2.7
• Day 7 (Feb 1): Grass fire video, Emanuel 2.7, 2.8: notes(19-22), Figs2.8-16
  
• Day 7 (Feb 1): Plume buoyancy flux, Plume from a line source
• Day 8: (Feb 3): Emanuel 3.0-3.1: notes, Figs_Ch3, convection demonstration
• Day 9: (Feb 8): Emanuel 3.5: notes, figures, Saturation adjustment
• Day 10: (Feb 10): Parcel model with entrainment, Diabatic processes and entrainment
• Day 11 (Feb 15): Entraining parcel model results, Parcel model vertical velocity,  Parcel model vertical velocity results
• Day 12 (Feb 17): QCOM: 1D conduction and grid
  
• Day 13: (Feb 22): Microphysics in CRMs: Autoconversion, Cotton Ch.4, Emanuel 10.4, 
  
• Day 14 (Feb 24): Simulating Droplet Microphysics in Turbulent Clouds
• Day 15 (Mar 1): SAM microphysics
• Day 16 (Mar 3): Cloud Microphysics and Dynamics in Deep Convection
• Day 17 (Mar 15):  QCOM: 2D linear convection,  QCOM: Finite-difference equations
  
• Day 18 (Mar 17): Shallow-layer convection: Horizontally averaged eqs., Kinetic energy analysis, Kinetic energy budget in RBC, Turbulence Closure
• Day 19 (Mar 22): Convective downdrafts: Life cycle & rain evaporation, simple model, Srivastava (1985),  Convective outflows
• Day 20 (Mar 24): Cumulus parameterization: The slice method, Cloud ensemble eqs.
  
• Day 21 (Mar 29): Cumulus parameterization: Mass flux model, Mass-flux formulation of cumulus parameterization
• Day 22 (Mar 31): Cumulus parameterization: The closure assumption for the A-S cumulus parameterization  Closure concepts
  
• Day 23 (Apr 5): Cumulus parameterization: Statistical properties of a cloud ensemble, Spectral cloud ensemble model, Testing the A-S cumulus parameterization
• Day 24 (Apr 7): QCOM: 2D nonlinear convection, Individual projects, Strong, long-lived squall lines
• Day 25 (Apr 12) Plumes from Arctic leads   [may be replaced]           
• Day 26 (Apr 14) Mountain waves & downslope windstorms [may be replaced]
  
• Day 27 (Apr 19) Clouds and radiation: Tropical cloud clusters & altocumulus clouds, Mesoscale radiatively induced anvil spreading
  
• Day 28 (Apr 21) Stratocumulus to cumulus transition  Tropical cyclones
• Day 29 (Apr 26) Presentations & review
  
• Exercises (all dates are for 2019)
• HW 1: Emanuel problems 1.1 - 1.4 (due Jan 27)
  
• HW 2: Emanuel problems 2.1 - 2.4  (due Feb 8 Plume buoyancy flux
  
• HW 3: Parcel Model: saturation adjustment (due Feb 22)
  
• Matlab code: parcel.m satadjust_dummy.m theta.m esat.m desdT.m
• Parcel model
  
• HW 4: QCOM 1 (1D conduction) (due Mar 15)
• HW 5: QCOM 2 (2D linear convection) (due Mar 22)
  
• HW 6: QCOM 3 (2D nonlinear convection) (due Apr 5
  
• Cloud system visualizations
• References
  

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Last updated  Feb 28, 2022