Global Chemistry Transport Modeling

There are several models being developed and used in ACD for global chemical transport modeling. The Model for OZone and Related chemical Tracers (MOZART) is a global 3-D chemical transport model driven by offline meteorological fields, that has been developed at NCAR, the Max-Planck-Institute for Meteorology, and NOAA/GFDL. New tropospheric and stratospheric versions are currently being evaluated and will be released to the public in Jan 2006.

In addition, chemistry is being incorporated into the NCAR Community Atmosphere Model (CAM), allowing for improved study of chemistry-climate interactions, and couplings with other components of the Earth system (e.g., land and ocean models). Two versions are being developed, one with fully coupled chemistry and climate, and one that will read analyzed meteorological fields, such as NCEP.

• MOZART - A global 3-D chemical transport model driven by offline meteorological fields, developed at NCAR, MPI-Meteorology, and NOAA/GFDL.
• CAM-Chem - the Community Atmosphere Model with interactive chemistry.
• CAM-Offline - CAM-Chem driven by observed meteorology.
• Data - Observations for model evaluation.