Aerosol and Trace Gas OSSE Capabilities at Goddard

In this talk we discuss OSSE (Observation System Simulation Experiments) capabilities at Goddard for aerosol and trace gas studies. We review exisitng Nature Runs (NR - a simulation of nature), observation simulation capabilities and several examples of retrieval OSSEs. We conclude with a summary of other OSSE activities of relevance, and a list of websites where documentation, data files and web visualizations can be found.