News

2014.07.23 | Arctic Research Centre

Ice work in Daneborg, June, 2014

Ph.d.-student Heidi Louise Sørensen has created five artificial melt water ponds on the sea ice of Young Sund, North-East Greenland. A small pump in each pond brings a slight stir in the water, hindering it from freezing. Photo: Peter Bondo Christensen.
Heidi Søren has built a simple laboratory on the sea ice where she carries out the tests of the multiple water samples gathered throughout the days. Photo: Peter Bondo Christensen.
With optrodes Ph.d.-student Heidi Sørensen is able to measure the content of oxygen in the samples taken from the artificial melt water ponds. Photo: Peter Bondo Christensen.
Ph.d.-student Heidi Sørensen adds radio active carbon to the water samples from the melt water pond in order to measure the plancton algae production. Photo: Peter Bondo Christensen.

2014.07.16 | Arctic Research Centre

Life in a melt water pond

Melt water ponds are formed when the sea ice start melting in the early summer and they disappear alongside the ice. A Ph.d. project is presently studying what impact these short-lasting ponds have on the global carbon budget.

2014.07.16 | Arctic Research Centre

Microbial communities in sea ice

The goal of this project is to identify changes in the communities of bacteria, archaea, ice algae, and other microbial eukaryotes in first year sea ice during the spring transition, as the surface melts and the ice drains.

Crossing a stream to get to the next stream site (Photo: Marie Buchardt).
One of my stream sites at the inlet to Langesø (Photo: Marie Buchardt).
Scraping off periphyton from the rocks in the stream (Photo: Marie Buchardt).

2014.07.15 | Arctic Research Centre

Top down control in Low Arctic lakes and streams

Field report from Kobbefjord, examining how the presence of fish affects the food chain in Low Arctic lakes and streams, using stable isotope analysis.

2014.07.09 | Arctic Research Centre

Moskusokser online

Feltbiolog Lars Holst Hansen fra Aarhus Universitet er med på satellitforbindelse fra det nordøstlige Grønland. Her har han været med til at sætte satellitsendere på 14 moskusokser. Medvirkende: Lars Holst Hansen, feltbiolog, Aarhus Universitet.