News archive

Glade forskarar fekk attende Harald

An unexpected journey to the seabed.

When Gandalf the Grey was struck by the Barlog and fell into the depths of the mountain at the bridge of Khazad dum, the Fellowship despaired. They had lost and old friend and their guide. When the underwater robot Harald did not return to the surface after a routine mission, the scientists on board the R/V Kronprins Haakon despaired.

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Pancake ice Barents Sea

The perfect front

After almost a week on the Nansen Legacy winter process cruise, we now sail into the sea ice and stay there until we go south to Tromsø towards the end of February. A couple of days ago we saw the sun just above the horizon, and for us living in Longyearbyen it was a great moment of joy, having been four months without the sun!

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ice pancakes in Barents Sea

Pancakes in the waves – a field report from the wintry Barents sea

We left Longyearbyen on Tuesday evening 12th of February and have sailed south and east in search of ice. After four days, R/V Kronprins Haakon has reached 35 degrees east. Pancake ice is the first stage in ice forming and a clear sign that there have been waves in swing. We will measure these waves with a small instrument that stands on a stake in front of the bow. We have tried already, but after two days in open sea, it was covered with so much ice from sea spray that we almost did not get the instrument back on deck.

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Bente Edvardsen sampling in Barents Sea.

Ships full of men are history – at least in arctic marine research

When the first Fram-expedition returned to Norway in 1896, after three years frozen into the ice of the Arctic Ocean, a crew of 13 men was enthusiastically welcomed home and celebrated as heroes, above all the young Fridtjof Nansen. Hundred and twenty-five years after Fram, research vessels are exploring the Arctic Ocean on more regular basis, and onboard are men no longer among themselves. Women have become important contributors to the scientific exploration of the Arctic Ocean.

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Scientist looking at species from Barents Sea

The tiny rulers of Arctic Seas

What do you think of when you think of the Arctic ocean? Belugas weaving through ice floes? Or maybe walruses sunbathing on a chilly beach? How about a polar bear hunting for its next seal snack?

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Runoff of meltwater from land-based glaciers to the Barents Sea

Interview with Louise Steffensen Schmidt (The Nansen Legacy), Postdoc at the Department of Geosciences, University of Oslo. Recently, she presented her research work in the lecture: Variability in glacier meltwater runoff to the Barents Sea, at the 3rd Nansen Legacy annual meeting, 10-12 November 2020.

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cylone

What controls cyclone variability in the Barents Sea?

The jet stream is a highway for cyclones, while the sea ice edge has been thought to be a fuel station. Erica Madonnas new study shows that the fuel for cyclones is not simply linked to the location of the ice edge. She explains Barents Sea cyclones as a traffic system.

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To puzzle the pieces together

In science, it is difficult to understand the whole picture when you only have fractions. As a puzzle, the Barents Sea is lacking some of the pieces to be a complete picture that you can hang on the wall.

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When Murphy Wins

Scientists in movies and on television are often presented as brilliant people, knowing exactly what they do and what they want to achieve, furthermore, their experiments always succeed. That is, if they fail, they fail spectacularly, becoming mutants, blowing up the world or some such. This post is about real scientists and failing unspectacularly.

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Risky business

When ocean waters with different properties, such as temperature, salinity and density, meet, they form a “front”. Ocean fronts are often rich in productivity and marine life, with high zooplankton and fish larvae concentrations. This makes fronts attractive for fishing vessels for obvious reasons

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who eats whom

What do the smallest animals in the Arctic eat?

Understanding who eats who is important to describe how nutrition and energy move between species in marine ecosystems. The field of research is flourishing like never before thanks to new technology and more advanced methods. These allow us to uncover hitherto unknown connections that occasionally shake up known paradigms in ecology.

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Net, harvest, fishing, gear

Balanced Harvesting

A first modelling study on the implementation of the “Balanced Harvesting” approach to fisheries management in the Barents Sea.

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Mechanisms Underlying Recent Arctic Atlantification

Recent “Atlantification” of the Arctic is characterized by warmer ocean temperatures and a reduced sea ice cover. The Barents Sea is a “hot spot” for these changes, something which has broad socioeconomic and environmental impacts in the region. However, there is, at present, no complete understanding of what is causing the ocean warming.

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Warm Atlantic Water Explains Observed Sea Ice Melt Rates North of Svalbard

Warm Atlantic water (AW) that flows northward along the Svalbard west coast is thought to
transport enough heat to melt regional Arctic sea ice effectively. Despite this common assumption, quantitative requirements necessary for AW to directly melt sea ice fast enough under realistic winter conditions are still poorly constrained.

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The elusive sea ice edge

Last winter an almost forgotten sight presented itself to all those venturing the Barents Sea: sea ice as far south as Bjørnøya, equaling a sea-ice extent not seen since the eighties and nineties. Are you wondering how this is possible in times of global warming and a diminishing Arctic ice cap?

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Polar cod have become larger in the Barents Sea over the last 30 years

Polar cod is a key fish species, transferring energy from zooplankton to larger animals. Polar cod depend on sea ice for spawning and during the early parts of its life. Reduced ice cover may therefore influence the survival and growth of young polar cod directly through e.g. loss of predation refuge, and indirectly by e.g. affecting the abundance and availability of prey.

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Nansen Legacy annual report for 2019

We are proud to share a glimpse of our many project activities from 2019. The report highlights of the new scientific knowledge that has started to emerge. It presents some of our research activities, our scientists and recruits.

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Iskanten av Christian Morel

The Ever Moving Sea Ice

The Arctic sea ice is on the move all year. It expands to its maximum during March and reaches its minimum in September. The variation during the year, and from year to year, depends on wind, weather and ocean currents. But the Arctic is changing.

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research and fish

Sustainable Fisheries Management

SIDE EVENTS ARCTIC FRONTIERS  Organised by Marit Reigstad and Alf Hakon Hoel, UiT – the Arctic University of Norway. What does it take to manage fisheries sustainably? Drawing on experiences

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Do organisms find food when the sea ice retreats?

In times of climate change and retreating sea ice, important research questions are for example: How important are sea ice algae as a food source for organisms such as copepods, krill and fish? Are they affected by the sea ice retreat and if so, how will that affect the functioning of the Arctic ecosystem?

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Rig-work in the dark

As the polar night lowers over the Arctic, RV Kronprins Haakon is leaving the quay in Longyearbyen, heading towards the Arctic Ocean. For the next two weeks, the researchers and technicians on board will retrieve old and deploy new scientific measuring equipment in the sea area around Svalbard.

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Nansen Legacy to sample Russian waters

Vladimir Savinov, a researcher at Akvaplan-niva (APN), is among the scientific crew on the R/V Dalnie Zelentsy, a 55 m Russian ship conducting monitoring surveys in the eastern Barents Sea.

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Six years into the ice — and beyond

The Arctic’s once impenetrable ice cap is melting away, with profound consequences for everything from ocean circulation patterns to fish numbers and diversity. The Nansen Legacy Project, including NTNU biologists,

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The Barents Sea throughout the year

While you are still enjoying the warm summer and a rich selection of fruits and berries, a large-scale preparation for winter is happening further North. In the Northern Barents Sea

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FF Kronprins Haakon

Annual report 2018

Photo: Ann Kristin Balto / Norwegian Polar Institute The annual report for 2018 is ready, and can be downloaded here. The first year of the Nansen Legacy is successfully completed.

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The Nansen Legacy

Fridtjof Nansen set out to explore the Arctic Ocean with the research vessel Fram 126 years ago. His team of explorers and scientists returned from the ice three years later with new knowledge that changed our concepts and understanding of the Arctic Ocean, and made the Arctic part of Norwegian identity.

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Get to know RV Kronprins Haakon

Central to the fieldwork of the project is the research vessel Kronprins Haakon. It has been built to operate in challenging ice conditions, which means it can go further north and south than

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PhD positions

Two interesting PhD positions available in the Human Impact: Pollution task of the Nansen Legacy project, one at UiO and one at UNIS.

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ChAOS at sea with the Nansen Legacy

The UK-based project Changes of the Arctic Ocean Seafloor (ChAOS) joined the last Nansen Legacy research cruise with two scientists from the University of Leeds, UK. Mark Zindorf and Allyson Tessin describe their work and motivation to join the Nansen Legacy cruise.

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Nansen Legacy in Shanghai

The Arctic Frontiers Partnership Network seminar Green Solutions for a sustainable future took place in Shanghai recently, as part of the official Norwegian state visit to China.

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Dramatic shift to Atlantic climate in Arctic warming hotspot

The Arctic is about to shrink, shows a new study, as an important part of the Arctic Ocean shifts over to an Atlantic climate regime. The rapid climate shift occurs in the northern Barents Sea—the Arctic warming hotspot where the surface warming and loss of winter sea ice is largest in the entire Arctic.

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Testing Norways new icebreaker

“There are many bits and pieces that need to fall in place with a new vessel like “Kronprins Haakon”, as well as a large research project like the Nansen Legacy, but both the vessel as well as the project are run by many incredibly competent and hard-working persons”, says Nansen Legacy PI Marit Reigstad.

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Chasing waves

Ilker Fer heads the first cruise by the Nansen Legacy project equipped with a specially constructed glider and measuring tools.

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