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GEO4962: The General Circulation of the Atmosphere

GEO4962 course

The course gives a broad overview about the general circulation of the atmosphere, including the tropospheric and stratospheric circulations. The lecture will cover the transport of climate and ozone relevant gases, which are important for the chemical composition and for the radiative budget of the atmosphere. Future climate and ozone changes affecting the general circulation of the atmosphere will be highlighted.

Learning outcome

After finishing this course, students should understand:


This course corresponds to practical parts of the GEO4962 “The General Circulation of the Atmosphere” given at the University of Oslo and assumes students have a basic knowledge of the Climate System.


Setup Download files required for the lesson
00:00 1. Introduction What is a climate model?
00:30 2. Overview of the Computing and storage infrastructure Where do we run a climate model?
What is a High-Performance Computer?
Where do we store climate model results?
01:15 3. Get familiar with CESM and the computing environment How to setup CESM on Saga?
How to run a CESM case?
How to monitor my CESM case?
What does CESM produce?
What is netCDF data format?
How to quickly inspect and visualize netCDF data files?
02:45 4. Overview of analysis and visualization tools for netCDF data Tools
02:45 5. Analyze and visualize test model outputs with python using Jupyter notebooks How to start/stop Jupyter notebooks in the Jupyterhub?
How to analyze and visualize CESM outputs with python?
What is the vertical coordinate in CESM?
02:45 6. From hybrid sigma-pressure (model) levels to pressure levels How to interpolate data to pressure levels?
02:45 7. Analyze and visualize control model outputs What is a control run?
What is a climatology?
How to compare model outputs with a climatology?
02:45 8. Setup model experiments How to define a climate experiment?
How to run long experiments?
02:45 9. CO2 experiment How to quadruple CO2?
02:45 10. Rocky experiment How to remove Rocky mountains?
02:45 11. Sea-ice experiment How to modify sea-ice?
02:45 12. SST experiment How to modify Sea Surface Temperature (SST)?
02:45 13. Himalaya experiment How to remove Himalaya mountains?
02:45 14. Running your experiments and analyzing your results How to submit your short run?
How to continue your run
02:45 15. Long-term archiving How to archive a CESM experiment?
How to clean my storage area?
02:45 Finish

The actual schedule may vary slightly depending on the topics and exercises chosen by the instructor.