16 March 2017
The amount of Arctic sea ice in summer decreases every year. How much do you and I contribute to this? How much does a roundtrip by airplane to Oslo or the running of the Longyearbyen power plant contribute to the melting each year?
24 February 2017
The Earth’s cusp region is believed to be the main place of transport of the magnetosheath plasma into the ionosphere. PhD candidate Xiangcai Chen has analysed a long-term ground-based optical aurora and SuperDARN HF radar data over Svalbard to further understand the dynamics of the reconnection plasma process in the cusp region. Xiangcai will defend his PhD thesis at UNIS on 28 February.
15 February 2017
Tunabreen, the iconic glacier in Tempelfjorden, is well-known to residents of Svalbard and the throngs of tourists that visit each year. The last known surge of Tunabreen was in 2004 and scientists have believed that the glacier has a 35–40 year surge interval, suggesting a new surge around year 2040. However, new satellite imagery suggests that Tunabreen is starting to surge now, decades earlier than expected.
31 January 2017
Last winter we had record-low amount of fjord ice here in Svalbard and the following autumn was unusually warm. But these last few months have been relatively cold. Can we anticipate ice on the fjords this winter? The answer is yes – and no.
13 December 2016
Silje Eriksen Holmen has investigated temperatures in the middle atmosphere (the mesosphere) over Longyearbyen and Tromsø and has found that temperature varies periodically according to atmospheric wind patterns and waves. Holmen will defend her PhD thesis at UNIS on 19 December 2016.
23 September 2016
The Greenland ice sheet is not entirely white. Parts of the ice sheet have darkened since 1996, leading to increased melting. PhD candidate Thomas Gölles has developed tools to study the interplay of particle accumulation, ice flow and ice melt. Gölles will defend his dissertation at UNIS on 29 September.