Java Climate Model JCM - Conditions of Use

Java Climate Model: Conditions of Use

Note: The conditions below were published on the original websites of JCM many years ago (since 2001). At my former institute there was a discussion as to whether these should be replaced by a standard license. This page was "temporarily" removed but the issue was not resolved, so eventually I put it back, pending a better version. See also New Version issues.

In the interests of global understanding, the Java Climate Model is made freely available and the code always has been, and will remain, open source - nothing is hidden.
However, users are expected to respect the following points (in which the term "JCM" refers to the complete package, model, code, documentation, data, images etc.)

The copyright / ownership of the JCM remains with its authors (until now, principally Ben Matthews), not to any organisation.
The authors cannot accept responsibility for any adverse impacts of using the JCM.

Users of JCM:

May use and adapt the JCM for educational or research purposes, but not for profit-making activities (note, non-profit applies to the activity, not to the organisation).
May store the JCM locally for use offline, but please check regularly for updates, and tell the authors if you use it frequently - feedback is important.
May not publish, redistribute or sell the JCM or adaptations thereof in any form (except temporarily for a specific educational course - please ask)
May consult the code and experiment with minor modifications. Please coordinate with the author regarding major adaptions (so they may eventually be integrated for other users). Any adaptations should remain open source and not-for-profit, as above, and the scientific integrity of the model should remain paramount.

Note: Sometimes it is useful to put a local copy of JCM on an internal website, for example to store a specific version associated with instructions for a course.
If you do this please include a link back here to jcm.climatemodel.info so that users can find the more recent version.
The climate keeps changing, as does the science - so please don't abandon isolated out-of-date copies of the model on the internet!
(Note: old versions of the model remain available here - see archive )