A free, open source tool for the analysis of GCM data from CMIP5.

License: AGPL v3

Conjuntool is a free, open source platform for the accessing and processing General Circulation Model output from CMIP5. It is intended for both research and pedagogy. Contributions are welcome. Visit to contribute.

Current functionality:

  1. GCM Plots: Plot time series of GCM data, and produce monthly or annual time series for download.
  2. GCM Anomalies: Read GCM data and generate \(\Delta T\) Anomalies (change factors) over a chosen baseline.
  3. Overlay Map: Show an overlay map of the time-period average temperature for the selected model and period.

Why “Conjuntool”?:

The Conjuntool is an open-source “re-imagining” of the UTSC Ensemble tool, a closed, limited-access platform has been used in the UTSC Climate Lab. The restricted nature of the Ensemble tool runs counter to my commitment to use only open-source software and open methodology in my research. I started writing the code that underlies this tool in Tarapoto, Peru. Conjuntool is a portmanteau of “conjunto” (the Spanish word for “ensemble”) and “tool”.

You are using Conjuntool as of git commit sha: cede681




Conjuntool, a free, open source tool for the analysis of GCM data from CMIP5.

Copyright © 2018 Conor I. Anderson

The source code for this project is available at

Note: The current devel branch will be squashed into an initial commit in a master branch when this hits some kind of stable status.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.

The full text of the GNU Affero General Public License is available here.

The icons in this platform are from the very cool Font Awesome project.

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The last 20 commits to the devel branch: