The construction of Tara Polar Station started in Cherbourg

After 5 years of design, Tara Ocean Foundation program moved from plans to reality. Construction of the new vessel designed for Arctic observation and scientific research began. The shipyard has been entrusted to Constructions mécaniques de Normandie (CMN) in Cherbourg.

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The first piece of the future drifting polar base was laid.

The moon-pool, the central part of the construction, was on the assembly table. This first symbolic moment confirmed the progress of the building site!

bas-moon-pool©PG-CMN

Prince Albert II of Monaco and Olivier Poivre d’Arvor visited the construction site.

On Friday, September 29 his Serene Highness Prince Albert II of Monaco and Olivier Poivre d’Arvor, French Ambassador for the Poles and Maritime Issues visited the shipyard.

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The Polar station is taking shape

Construction of Tara Polar Station is progressing on the Cherbourg construction site.

chantier-tara-polar-station

Tara Polar Station: Studying the Arctic to step up research on climate change and biodiversity.

“The Arctic Ocean recorded one of the lowest sea ice thickness at the end of winter. Time is running ut for its largely unknown biodiversity.”

— alerted Chris Bowler, CNRS research director at the Ecole normale superieure (ENS° and chairman of the scientific committee of Tara Ocean Foundation.

Timelapse of the first months of construction

After fitting the assembly table and the moon pool, the central piece of the construction, the 2cm-thick hull is being assembled. A real technical challenge is being met!

Construction : Step 1

The power of teamwork

The Tara Ocean Foundation teams had the opportunity to discover the Tara Polar Station construction site at Constructions Mécaniques de Cherbourg. It was a very inspiring moment. The team is more than ever ready to expand its actions: Tara + Tara Polar Station.

équipe

Assembly and welding of the hull

All the metal plating for the hull’s exterior skin is assembled. More than 6,000 pieces are needed for the hull. Welding is almost complete.

First geode demouldings

The first two exterior elements of the geode have been demoulded. Welding is in progress. The assembly table for the entire geode is in place, along with the first compartments.

geode©Loic-Vallette

Features

A drifting observatory and scientific laboratory

Once locked in sea ice, Tara Polar Station’s purpose will be to strengthen French and international research on the Arctic environment, among the most extreme on our planet, to better understand the impact of climate change on biodiversity and the adaptive abilities of endemic species.

Coupe Tara Polar Station
Tara Polar Station’s general arrangement drawing

360° view of Tara Polar Station

3D views of Tara Polar Station, a 27-m drifting polar base, designed in collaboration with architect Olivier Petit. This “North Pole ISS” will be able to withstand temperatures between -20° and -52°C . The station will host a crew of 12 in winter and up to 18 in summer.

Immersion around the drifting polar base

Discovering

Focus on the construction of Tara Polar Station

The drifting scientific polar base, Tara Polar Station, will embark scientists from all over the world on multiple successive drifts until 2045. Climatologists, biologists, physicists, glaciologists, oceanographers, artists, physicians, journalists and sailors will collaborate and live together aboard Tara Polar Station to conduct observations and in situ measurements in temperatures ranging between -20° and -52°C during the polar night in winter.

Technical challenges

Moon-pool

Centerpiece of the construction of the drifting polar station, the moon-pool is an aluminum cylinder 1,6 meters in diameter designed to allow sampling of polar waters down to depths exceeding 2,500 meters. It serves as a reference for the entire construction. An error in its positioning would impact irreversibly the rest of the construction of the future Tara Polar Station.

Technical challenges

Welding: shell shape and thickness

Because of the hull’s shape and thickness (20 mm), welding is a complex but essential step. Some 6,000 pieces constitute the hull. They have to be welded together. Because of their thickness, new welding processes need to be set up on site. The hull structure must comply with “ice rating” regulations, which ensure the boat’s solidity in the event of impact with a block of ice. This is why the hull is very thick. The shape of the hull is frequently checked on site.

Technical challenges

Accessibility for welders

The high proximity of the structural elements to each other creates more difficulties for the welders in terms of accessibility. Some welds are really tricky. Moreover, welding generates a high level of heat, which can deform the material (especially aluminum). The risk of deformation prevents welders from working together in the same area.

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