Click here, for general concepts of how the models behavior can be influenced by scripting.
The iLand Scripting API page:iland.boku.ac.at/apidoc/index.html
The transition is, unfortunately, not fully complete, and you still find some parts of the API documentation in the wiki.
The API document page describes the following objects:
Still on the Wiki:
Helper class to import climate data from various text sources.