Editing Community Climate System Model (section)

==Development==
The first version of CCSM was created in 1983 as the Community Climate Model (CCM). Over the next two decades it was steadily improved and was renamed CCSM after the [[Climate System Model]] (CSM) components were introduced in May 1996.<ref name="Hoffman" /> In June 2004 NCAR released the third version, which included new versions of all of the submodels. In 2007 this new version (commonly given the acronym CCSM3 or NCCCSM<ref>{{cite web |url=http://www.mad.zmaw.de/projects-at-md/ipcc-data/order-data-on-dvd/information/models/|archive-url=https://web.archive.org/web/20110719120016/http://www.mad.zmaw.de/projects-at-md/ipcc-data/order-data-on-dvd/information/models/|url-status=dead|archive-date=2011-07-19|title=Modelle & Daten model abbreviations |publisher=[[Max Planck Institute for Meteorology]] <!-- |accessdate=February 2009 -->}} </ref>) was used in the [[IPCC Fourth Assessment Report]],<ref>{{cite web |url=http://www.nar.ucar.edu/2006/science/understanding/understanding_priority4_1.php |title=NCAR 2006 Annual Report |author=NCAR |publisher=[[NCAR]] |year=2006 |access-date=2016-12-11 |archive-url=https://web.archive.org/web/20160303171413/http://www.nar.ucar.edu/2006/science/understanding/understanding_priority4_1.php |archive-date=2016-03-03 |url-status=dead }}</ref> alongside many others. In May 2010 NCAR released CCSM version{{nbsp}}4 (CCSM4). On June 25, 2010 NCAR released the successor to CCSM, called the [[Community Earth System Model]] (CESM), version{{nbsp}}1.0 (CESM1), as a unified code release that included CCSM4 as the code base for its atmospheric component.