The inaugural Arctic Observing Summit was held in Vancouver, Canada, on 29 April to 2 May 2013. The second AOS was held in conjunction with the Arctic Science Summit Week (ASSW) in Helsinki, Finland, 5 to 11 April 2014, while the third took place in Fairbanks, USA, 15-18 March 2016, also in conjunction with Arctic Science Summit Week 2016. Most recently, the 2018 Summit was held in Davos, Switzerland, 24-26 June 2018.
AOS 2020 will be held in Akureyri, Iceland (March 31- April 2) as part of Arctic Science Summit Week 2020.