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Finding Mars on Svalbard

Our first encounter with a polar bear at the French field station Corbel. Photo: Andreas Johnsson Martian geomorphological records give clues to climate changes on Mars within the last few million years. What can we learn about these changes from...

Cruise report

Environment and society in a changing Arctic

Researchers and students descending mountain at Billefjorden. Photo: Dag Avango On this field trip to Svalbard, data were collected for the Mistra-funded project Assessing Arctic Futures. At the same time, students from KTH Royal Institute of...

Cruise report

Ny-Ålesund: Node of Arctic science and geopolitics

Himadri Station (NCAOR, India). Photo: Eric Paglia This project investigated how science, science stations, and the built environment of Ny-Ålesund, Svalbard, reflect and substantiate geopolitical scripts that legitimate non-Arctic states as...

Cruise report

The De Long Islands and Arctic tectonics

Siltstones (dark) underlying a large mafic sill (grey). Photo: Christian Tegner Despite over 50 years of exploration into the nature and origin of first-order features in the Arctic region, such as when and how the Arctic Ocean itself formed,...

Cruise report

LOMROG III – expedition summary

On 22 August 2012 at 21:43 UTC Oden reached the North Pole for the 7th time. The arrival at the North Pole was celebrated by raising the flags of the countries represented on board Oden. After a glass of sparkling wine on the bridge and a group...

Cruise report

MARA – at Maitri

MARA, the Moveable Atmospheric Radar for Antarctica, is used to study winds, turbulence and layering in the atmosphere. After two complete years of observations at Troll, MARA was moved to the Indian station Maitri in January-February 2014. The...

Cruise report

TRANSSIZ – Transitions in the Arctic Seasonal Sea Ice Zone

Despite advances over the past decade in understanding the Arctic sea ice dynamics, the connection between sea ice, ocean circulation and ecosystem changes remains poorly established. The coupling of the different system components, and their...

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Why is Petermann Glacier melting, and should we be worried?

We wonder why Greenland glaciers are currently melting and where their fresh meltwaters go. All this extra freshwater is causing sea-level rise and could disturb the whole ocean circulation of the North Atlantic, which controls the European...

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First steps to and from the water

Vertebrates first emerged onto land during the Devonian, 358 million years ago. They returned to the sea 108 million years later, in the earliest Triassic. These events are recorded by fossils, which reveal profound transitions from fins to limbs,...

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New ways of long-term underwater sensing

Obtaining long term data series in polar regions is becoming increasingly important to better understand and model ongoing environmental changes. However, the duration of current projects rarely exceed 5 years. Engineers at the KTH Royal Institute...

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The carbon cycle in a rapidly changing Arctic Ocean

The Arctic carbon cycle is a key component of the ocean and, by virtue of its interaction with atmospheric carbon dioxide (CO2), also of fundamental importance to Earth’s climate. The Arctic Ocean is a system in rapid transition under the...

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Particle transport and its impact on ocean biogeochemistry

Marine particles act as carriers transporting trace elements from the continents to the ocean. Many of the trace elements are necessary for the marine ecosystems and thus the particle transport is a key factor for Arctic marine life. Climate...

Cruise report

Ecological consequences for Arctic species communities

Arctic environments are characterised by a harsh climate, low human population densities and by hosting relatively simple ecosystems. Alterations of Arctic ecosystems may have large effects on humanity, as these ecosystems provide important...

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Trace carbon dioxide and methane along the coast of Greenland

The flux of the greenhouse gases carbon dioxide and methane from shallow sea sources to the atmosphere is thought to be an important part of the global carbon cycle. By making continuous measurements of carbon dioxide and methane above the Arctic...

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History of the Petermann Glacier

The Petermann 2015 expedition targeted the Petermann Glacier, Petermann Fjord, and the adjacent Hall Basin of Nares Strait. The Petermann Glacier drains the north-western sector of the Greenland Ice Sheet into the Petermann Fjord. It is an active...

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