This is part of the labels / documentation for <a href='http://jcm.chooseclimate.org'>Java Climate Model</a><hr/>

#whatnew		§³Latest Version March 2004³ <li>Documentation reorganised: seperate topic-language files for loading on demand over web, big table for updating / reorganising - See @labdoc. Also some documentation in French.  <li>Probabilistic Approach - Stabilisation under Uncertainty - see @applications <li> Attribution for 12 regions, and relative shares - see @attribution <li>Climate Map regions and projections -see @regclimap <li> Carbon Cycle -see @sinksbiosphere, @TGCIA450<hr> See also  <li>@new2003 <li>@new2002  <li>@develop  <li>@future

#new2003		§Version of July 8th 2003:  <li>Documentation:  now about 50,000 words, hundreds of topics, many ways to explore. Metaformat including content generated by the model - See @labdoc  <li>Scripting: new facility can be used for both batch-calculations and automatic demonstrations -  See @scripting  <li>Stabilisation Scenarios: - More general iteration algorithm- see @stabrfdoc, @stabtempdoc, @stabitmethod  <li>Teaching and policy @applications  <li>Swing variant for documentation without webbrowser  <li>More dynamic internal structure and interactions.
  

#new2002		§<h3>Oct-December 2002</h3>
  Regional Climate Map:  <li> Several GCM datasets, inc new HadCM3 data  <li> Several climate variables, plus combinations  <li> Baseline climatology, & baseline plus change  <li> Averages for countries/regions - may plot as polygons  <li> Rotate by dragging, other display options

Other changes:  <li> New layouts: ring of small plots + big in centre (flowchart or another).  <li> Carbon-flux / heat-flux parameters move to carbon-storage / ocean temperature plots.  <li> CO2 equivalent curves ("expert")

  <h3>August-Sept 2002</h3>  <li>Attribution of responsibility (JCM contribution to UNFCCC assessment of the "Brazilian proposal")   <li>Multi-part labels, cancelling units  <li>Capture image and data-table functions (only as application with Java1.4)

  <h3>June-July 2002</h3>  <li>Spanish and German labels  <li>Developing an efficient java variant of the dynamic vegetation model used in Bern-CC (not yet included in JCM!)

  <h3>April-May 2002</h3>  <li>Comprehensive documentation -now over 70 webpages with 40000 words  <li>Carbon-storage and ocean-temperature plots  <li>Upwelling feedback on sealevel fixed  <li>New code structure, separate model and GUI, more adaptable /reliable

  <h3>February-March 2002</h3>  <li>Atmospheric chemistry calculations as Bern-CC model  <li>Other gas and F-gas plots  <li>Other gas emissions options  <li>Improved stabilise temperature formula

  <h3>January 2002</h3>  <li>Flexible regional data plot  <li>Cause-effect flowchart  <li>Energy, GDP, Abatement  <li>More distribution options

#develop		§<h3>Early development: Spring 2000</h3>
  The idea was born out of frustration at the lack of connection between climate science and policy, as observed from personal experience both investigating CO2 fluxes in the laboratory, and attending UN climate conventions. (See <a href="author.html">About the Author</a>)

  The first stage was a simple java applet, demonstrating the flexible
  "contraction and convergence" policy framework, whose concept was developed with <a href="http://www.gci.org.uk">Global Commons Institute</a> in summer 1996.

  <a href="http://www.chooseclimate.org">ChooseClimate website</a> was launched in April 2000 to provide an independent "home" for JCM to consider a wider range of options and scientific issues,
  also initially persuing the concept of a global climate referendum.
  This work was carried out at home, in Norwich.

  <h3>Core Science: Copenhagen, Winter 2000 - 2001</h3>
  The next stage developed with <nobr><a href="http://www.dea-ccat.dk" target="_new">DEA-CCAT Copenhagen</a> </nobr>, together with Jesper Gunderman of Danish Energy Agency, and Peter Laut of Danish Technical University .

  Firstly a version was developed for display in the "Experimentarium" in Copenhagen, supported by EnergiMiljoradet. The interface was improved and the code internationalised, to support Danish and Swedish versions.

  After COP6, the core carbon and climate science modules were developed to match the predictions of IPCC-TAR, using an effecient eigenvector calculation method originally developed by DEA-CCAT for an earlier web model.

  <h3>"Nomad with laptop" -  Spring 2001</h3>
  After a visit to Arendal Norway, JCM travelled to Scotland, persuing a project proposal with Edinburgh university, also working a few weeks at the Centre for Ecology and Hydrology. The sea-level and radiative forcing components were improved, and the timescale extended for longterm impacts.
  Then followed a "European tour" of many conferences and institutes during summer 2001 (see @confpres)

  <h3>Synthesis questions: UNEP-GRID, Autumn 2001</h3>
  Development continued at <nobr><a href="http://www.grida.no" target="_new"> UNEP/GRID Arendal</a></nobr>, Norway, from mid-August to the end of 2001, with an interval around COP7, Marrakech.

  Here the emphasis was on improving the design of the user interface and documentation, focussed around introductory questions inspired by the new IPCC Synthesis report. The stabilisation scenarios were implemented to complement the SRES. Following a  "peer-review"  process, a version was launched on the new UNEP.net climate portal at COP7.



A scripting code was developed for automatic demonstrations of key points. This was also adapted for "remote control" across the web, exploring the model's potential as a framework for global dialogue. Further translations were also made, to  Russian, French, Norwegian.

  <h3>Biogeochemical cycles: Bern, February-June 2002</h3>
  In <nobr> <a href="http://www.climate.unibe.ch" target="_new"> Klima und Umwelt Physik, University of Bern</a> </nobr>, working with Fortunat Joos, and supported by Swiss BUWAL. Here the emphasis was on the atmospheric chemistry and radiative forcing of all greenhouse gases, and also on the terrestrial biosphere component of the carbon cycle, to match the latest version of Bern model.
  A better stabilise-temperature method was also developed. The source code was also restructured and made open in downloadable packages. Translations were added for German and Spanish.

  <h3>Integrated Assessment: UCL-ASTR, Louvain-la-Nueve, since July 2002</h3>
  Current development is at <nobr><a href="http://www.climate.be" target="_new">Institut d'Astronomie et de Géophysique, University Catholique de Louvain </a></nobr>, Belgium, working with Jean-Pascal van Ypersele.
  During the last year, JCM has participated in the UNFCCC Assessment of the Brazilian proposal (see @attribution), has been presented at other IPCC and UNFCCC workshops, and EGS in Nice (see @confpres). JCM has also been used for @teaching, with several courses. The @regclimap were improved and many variants of @stabilisation developed, addressing the @stabtemp2c question using a new @scripting code. Dutch translation was added, and all the @labdoc restructured.

  <hr> See also<li>@confpres,<li>@whatnew,<li>@future,<li>@acknow

#copyr		§³JCM "Copyright"³ In the interests of global understanding, the Java Climate Model is made freely available and the source code is also open.
  However, users should respect the following points (in which the term "JCM" refers to the complete package, model, code and documentation).
  <hr>The copyright and ownership of JCM remains with the author Ben Matthews. The author cannot accept responsibility for any adverse impacts of using the JCM.
  The user:   <li>May store the JCM locally for use offline, but please check regularly for updates, and tell the author if you use it frequently.   <li>May use the JCM for educational or research purposes, but not for profit-making activities (note, non-profit applies to the activity, not to the organisation).   <li>May not publish, redistribute or sell the JCM or adaptations thereof in any form (please consult the author, if you wish to use this within an educational package).   <li>May consult the code and experiment with minor modifications. Please coordinate with the author, regarding major adaptions. Any adaptations should remain open source and not-for-profit, as above, and the scientific integrity of the model should remain paramount.   <li>see also @contact

#download		§<li>Before downloading, please read @copyr  <li>Please check regularly for updates. If you use JCM frequently and wish to be informed about new developments, @contact.
 ££pack24mar04 ££pack8jul03 ££packchange ££packnotes ££pack5apr03 ££pack24dec02 ££pack1dec02 ££pack1sep02 ££pack7jul02

#packchange		§<li>@pack24mar04 Documentation reorganised: separate topic-language files with big table for restructuring. Some french documentation. Probabilistic Approach, Attribution for 12 regions, Climate Map regions and projections, Carbon Cycle additions <li> @pack8jul03 New documentation 50000 words, searchable, translatable, context-related and interactive, also works in Swing. New scripting code for IA scripts and demos. Cloneable, adaptable, more efficient Panels.

<li>²(@pack5apr03 New stabilisation scenario options, new internal interactions structure. Note, this version was not finished - a transient phase!)²

<li>@pack24dec02 More regional climate datasets and options. New layout options. Fixed 1Dec bug for older JVMs. Documentation update. Note no auto-demo scripts in this version

<li>@pack1dec02 Improved regional climate impact maps: eight variables, baseline climatology, combination, borders and and averages for each country/region. Also some efficiency improvements. Added Dutch labels. Won't work in older JVMs.

<li>@pack1sep02 for Brazilian proposal calculations: added responsibility module, attribution plot, documentation of submitted results. Also multi-part labels with cancelling units, and capture image and data-table functions (with JDK1.4 and startjcm).

<li>@pack7jul02  added German labels  <li>17th June: Added Spanish labels, Mitigation module now resetting OK.

  <hr>  <li>see also @whatnew

#packnotes		§<li>The same java code works on any system (see <a href="java.html">about java</a>)  <li><b>.zip</b> packages require an unzip tool (e.g. try <a href="http://zipcentral.iscool.net/" target="_new">zipcentral</a>).  <li>² old <b>.exe</b> packages are self-extracting, for windows only.²

To start the model, open "index.html" in the root jcm directory

(or "open.html" in "basic" packages)
  ²°cogs (For experts) If you have Java 1.4 installed, you can open /jcm/startjcm.class as an application, rather than an applet, which adds the facility to capture images and datatables from plots.<li>See @startjcm²
  <!-- Note the concatenated files for printing are not included in packages: These are   <li><a href="../jcmdocall.html" target="_new"> jcmdocall.html</a>  <li><a href="../../code/jcmcodeall.txt" target="_new"> jcmcodeall.txt</a> -->

  ³File structure³
  The file structure is essential for the interaction between the model, the data, and the  documentation. Be sure to enable "preserve directory structure" in your unzip program.<li>See also: @struccode

 Individual compiled java classes are not included in the package, as they are already inside the jar file, and can be generated from the source code. They should be placed below the root directory, with structure according to packages (e.g. jcm/jcm/mod/carboncycle.class)

for hints on compiling JCM  <li>@contact   <li>@aboutjava
  <!--<li> see: <a href="compile.html">Compiling info</a> or better, -->

 The Jama Matrix Package (@jama) and the classes for javascript-java interaction (Netscape) are also included.

#pack24mar04		§Latest version 

Complete JCM package: Model, core data, labels/documentation (inc table), java source code   <li><a href="http://www.chooseclimate.org/jcm/pack/24mar04/jcm24mar04.zip">jcm24mar04.zip</a> (1150 KB) <li> You may also want to download extra regional climate datasets as in @pack24dec02 package (they have not changed) 

Smaller package, as above but without java source code, labdoc table, and precipitation data <li><a href="http://www.chooseclimate.org/jcm/pack/24mar04/jcm24mar04basic.zip">jcm24mar04basic.zip</a> (670 KB) 

#pack8jul03		§Complete JCM package: Model, labels, core data, documentation & java source code   <li><a href="http://www.chooseclimate.org/jcm/pack/8jul03/jcm8jul03.zip">jcm8jul03.zip</a> (993KB) Complete Package  <li> You may also want to download extra regional climate datasets as in @pack24dec02 package (they have not changed)  

Smaller package, as above but without java source code and precipitation data<li><a href="http://www.chooseclimate.org/jcm/pack/8jul03/jcm8jul03nocode.zip">jcm8jul03nocode.zip</a> (635KB) 

#pack5apr03		§
(with new scripting code for batch calculations and demonstrations, new stabilisation scenarios, and new internal interactions framework)
  <P class=note>Note: this version is not yet finished, it is for people already familiar with JCM, to consider further developments. It may have bugs, and the documentation has not yet been updated.

<b>Please see readme.txt file inside package.</B>
  </P>



Complete JCM package: Model, labels, core data, documentation & java source code   <li><a href="http://www.chooseclimate.org/jcm/pack/5apr03/jcm_complete_5apr03.zip">jcm_complete_5apr03.zip</a> (approx 900KB)

<li> You may also want to download the regional climate datasets as in @pack24dec02 package (they have not changed)

#pack24dec02		§
(with improved regional impacts)



Basic JCM package: model, labels, core data   <li><a href="http://www.chooseclimate.org/jcm/pack/24dec/jcm_basic_24dec02.zip">jcm_basic_24dec02.zip</a> (340KB)



Complete JCM package: Basic + documentation & java source code   <li><a href="http://www.chooseclimate.org/jcm/pack/24dec/jcm_complete_24dec02.zip">jcm_complete_24dec02.zip</a> (870KB)



Regional Climate datasets (much bigger than the model - but much smaller than the original). Note, you can run JCM OK <i>without</i> these datasets, they are provided to show more GCM patterns, baseline climatology, and climate variables. This zipfile must be unpacked into the directory ..../jcm/data  <li><a href="http://www.chooseclimate.org/jcm/pack/24dec/jcmdata_24dec02.zip">jcmdata_24dec02.zip</a> (6.5MB)

#pack1dec02		§

Standard JCM package: including data (except baseline below) documentation & demos   <li><a href="http://www.chooseclimate.org/jcm/pack/1dec/jcm_standard_1dec02.zip">jcm_standard_1dec02.zip</a> (860KB)



Complete JCM package: Standard + java source code   <li><a href="http://www.chooseclimate.org/jcm/pack/1dec/jcm_complete_1dec02.zip">jcm_complete_1dec02.zip</a> (1.04MB)



Baseline climatology datasets (much bigger than the model - but much smaller than the original)  <li><a href="http://www.chooseclimate.org/jcm/pack/1dec/baselinedata.zip">baselindata.zip</a> (3.5MB)
  Note, these datafiles must be unpacked and put in the directory ..../jcm/data

#pack1sep02		§

Minimal: Model, data, english labels, no maps

<li><a href="http://www.chooseclimate.org/jcm/pack/1sep/jcm_min_1sep02.zip"> jcm_min_1sep02.zip</a> (K)  <li><a href="http://www.chooseclimate.org/jcm/pack/1sep/jcm_min_1sep02.exe"> jcm_min_1sep02.exe</a> (K)



Basic: Model, data, all labels, maps

<li><a href="http://www.chooseclimate.org/jcm/pack/1sep/jcm_basic_1sep02.zip"> jcm_basic_1sep02.zip</a> (K)  <li><a href="http://www.chooseclimate.org/jcm/pack/1sep/jcm_basic_1sep02.exe"> jcm_basic_1sep02.exe</a> (K)



Standard: Basic + documentation & demos

<li><a href="http://www.chooseclimate.org/jcm/pack/1sep/jcm_standard_1sep02.zip"> jcm_standard_1sep02.zip</a> (K)  <li><a href="http://www.chooseclimate.org/jcm/pack/1sep/jcm_standard_1sep02.exe"> jcm_standard_1sep02.exe</a> (K)



Complete: Standard + java source code

<li><a href="http://www.chooseclimate.org/jcm/pack/1sep/jcm_complete_1sep02.zip"> jcm_complete_1sep02.zip</a> (K)  <li><a href="http://www.chooseclimate.org/jcm/pack/1sep/jcm_complete_1sep02.exe"> jcm_complete_1sep02.exe</a> (K)

  pack7jul0

#pack7jul02		§

Minimal: Model, data, english labels, no maps

<li><a href="http://www.chooseclimate.org/jcm/pack/7jul/jcm_min_7jul02.zip"> jcm_min_7jul02.zip</a> (196K)  <li><a href="http://www.chooseclimate.org/jcm/pack/7jul/jcm_min_7jul02.exe"> jcm_min_7jul02.exe</a> (234K)



Basic: Model, data, all labels, maps

<li><a href="http://www.chooseclimate.org/jcm/pack/7jul/jcm_basic_7jul02.zip"> jcm_basic_7jul02.zip</a> (275K)  <li><a href="http://www.chooseclimate.org/jcm/pack/7jul/jcm_basic_7jul02.exe"> jcm_basic_7jul02.exe</a> (313K)



Standard: Basic + documentation & demos

<li><a href="http://www.chooseclimate.org/jcm/pack/7jul/jcm_standard_7jul02.zip"> jcm_standard_7jul02.zip</a> (471K)  <li><a href="http://www.chooseclimate.org/jcm/pack/7jul/jcm_standard_7jul02.exe"> jcm_standard_7jul02.exe</a> (509K)



Complete: Standard + java source code

<li><a href="http://www.chooseclimate.org/jcm/pack/7jul/jcm_complete_7jul02.zip"> jcm_complete_7jul02.zip</a> (646K)  <li><a href="http://www.chooseclimate.org/jcm/pack/7jul/jcm_complete_7jul02.exe"> jcm_complete_7jul02.exe</a> (684K)