Winther took the initiative leading to the Nansen-Amundsen Year in 2011, an official celebration with around 400 events nationally and internationally, acknowledging 150 years after
Fridtjof Nansen was born and 100 years after Roald Amundsen reached the South Pole. Winther participated in the anniversary expedition to the South Pole in 2011 along with
Stein P. Aasheim, Harald Dag Jølle and
Vegard Ulvang. The expedition followed the same route as
Roald Amundsen’s expedition in 1911–12 and reached the Pole precisely 100 years after Amundsen as part of the celebration of the Nansen-Amundsen Year in 2011. In 2013, he led the International Nansen Memorial Expedition from Archangel to the Yenisei River aboard the former Russian research vessel Professor Molchanov. Winther took part on behalf of Norway in the Olympic Torch Relay prior to the Winter Olympics in Sochi in 2014 when it visited the North Pole in October 2013. Jan-Gunnar Winther proposed the Constitution Voyage in 2014 when the schooner, Anna Rogde, sailed from Hammerfest to Oslo as part of the celebrations of the bicentenary of the drawing up of the Norwegian Constitution in 1814, to underline its significance and the opportunities it opened up for the Norwegian coast, viewed from a historic aspect and in the perspective of what the future holds. ==Publications==