Model of Emissions of Gases and Aerosols from Nature

Contact: Alex Guenther (

MEGAN is a modeling system for estimating the emission of gases and aerosols from terrestrial ecosystems into the atmosphere. A brief history of the model and a list of publications are provided.

There are several versions of stand-alone code that can be downloaded form this website and the MEGAN framework has also been incorporated into several regional and global modeling systems. Some resources for running the MEGAN FORTRAN code and information from the MEGAN training course are also available.

Please register if you want to be informed of any fixes and when the latest (MEGAN3) code will be available.