To run MEGAN3.2 you will need input data (landcover and environmental conditions) and code (preprocessor, emission factor processor, emission calculator and chemical mechanism mapper). Each of these are described below:   

Geogridded input data (for the preprocessor Fortran code)

 Use the preprocessor to regrid these data to your model domain  

1. Landcover

2. Soil nitrogen emission module inputs

3. Physical weather

These data are typically generated by the user using a regional or global model such as WRF or CESM-CAM although it is possible to take other weather/climate data and convert it to the WRF format.

Emission Factor Processor (Python code)

Preprocessor, emission calculator and mechanism mapper (Fortran code)

Download the Preprocessor code 

Download the calculator and mechanism mapper code