Java Climate Model - Archive of older versions
- This shows the evolution of JCM over time (see also History of JCM)
- Some old versions (especially March 2004 = JCM4) are still used for teaching purposes.
"JCM5" 2005-2009Since 2005 JCM became an application launched using Java5 and WebStart, and has been hosted here at www.climate.be/jcm
|June 2011||Current version of JCM (also shared on SVN)|
|Feburary 2009||Prior to adding Copenhagen pledges|
|October 2008||Including new regional emissions data / effort-sharing projections for Swiss project on emissions pathways|
|March 2007||Core science updates (using IPCC AR4), partial documentation update, usability improvements|
|October 2006||Version for ABCI project including Aviation Emissions & Forcing|
|March 2006||Frames version, includes new LUC module, new methods for attribution of responsibility, and wiki-doc system|
|June 2005||Early experimental Java 5 version with only free-floating internal windows, includes new parallel worlds structure|
Note: these all work ok from downloaded jar files, but webstart may stall loading earlier versions across a slow network. Old "current.jcms" setup files may also crash the startup
JCM 2002-2004Until 2004 JCM was an applet embedded in a webpage, running on Java 1.1, and hosted at jcm.chooseclimate.org
| December 2004
Only Source Code Stored
| Used for analysis "optimisation under uncertainty", including optimisation, SRES extension,
results presented in Trieste workshop, and included in ClimnegII report
|March 2004||The most complete, well-explained version of JCM4, with interactive documentation, popular for teaching|
|July 2003|| Added probabilistic scripting for analysis of stabilisation under uncertainty,
results presented in Firenze and WCCC Moscow
|December 2002||Added analysis of attribution of responsibility for ACCC, also experimental costs module|
|7 July 2002|| On leaving KUP Bern, including atmospheric chemistry and forcing of all 33 gases, auto-stabilise temperature
still online at www.climate.unibe.ch/jcm
|January 2002|| On leaving GRID Arendal, with clear explanations and GUI, also SRES scenarios
(used for climatechange.unep.net/jcm)
Note: you may get a problem opening these sequentially without closing the web browser - due to java static classes retained in memory!
2000-2001 - Chooseclimate interactive applet => JCM
|July 2001||First version of "JCM" as proof of concept, |
after work in Edinburgh adding other gases, solar+volcanos, sea-level rise, etc.
presented at IGBP Open-Science conference, later UNFCCC COP7 Marrackech
|March 2001||Version on leaving Denmark, with help from Jesper Gundermann to incorporate UDEB heat and Hilda carbon models|
|November 2000||Multilingual version developed for Experimentarium, Denmark|
|May 2000|| Chooseclimate interactive graphics - illustrating key decisions of C&C, vote to save the climate! |
Note - press the stop button and choose the step-by-step intro!
The code here was designed for java version 1.0 and web browsers of 2000, so there may be some problems now!