History of SWIM / JCM

A brief reverse-timeline of the model development:

(which helps explain relative age of modules)

• 2022 - see archive of recent SWIM updates
• presented to conferences - Scenarios Forum Jun 22, IAMC Dec 21
• 2021 - since may - conversion to new language Scala3, develop scala.js web GUI
• 2018 (paused - as java-ws removed from browsers, so model no longer accessible )
• 2017 add economy module - explore socioeconomic drivers without scenarios
• 2016 (Godinne -> present)
  probabalistic regional pathways <1.5 / 1.75C
  + added demographics, migration, SSP chooser modules
  + update core datasets, and Paris pledges
• 2011 (Rio Brazil)
  energy module with investments (only electricity complete)
  + probabalistic regional pathways <2C,
  + equity driven pathways (Swiss project) following Cancun pledges
• 2010 contribution EU 2C analyses
• 2009 (?) consideration new scenario framework
• 2008 Aviation emissions and forcing, update core to AR4
• 2007 Responsibility (attribution analysis - MATCH)
  + complete transition to "JCM5"
• 2006 Land Use Change module (with C.PdeCampos)
• 2005 start transition to "JCM5" (java5) incl java-webstart GUI with flexible layouts, tree, parallel worlds, wiki, scripts
• 2004 economic cost- optimisation and risk analysis
• 2002-3 (Louvain la Neuve -> until 2010)
  educational versions, testing with students
  + first probabalistic stabilisation analyses <2C - scripts
  + analysis "shifting the burden of uncertainty" (compare stabilise emit/conc/forcing/temperature/sea-level)
• 2002 (Bern Swiss) f-gases, other gases, aerosols - carbon/chem/forcing consistent IPCC, iterative stabilisation
• 2001 (Arendal Norway) better interface, documentation, translations, scenarios
• 2000-1 (Copenhagen) better carbon and climate models (based IPCC), expo-model, sea-level
• 2000 (Norwich) first java applet model based on C&C
• 1995-6 (Norwich) develop policy framework "contraction and convergence" - javascript model

---

Next: Future
(Overview)