Overview

Launching a 20-year Arctic research programme

Tara Polaris I (2026–2027), the first expedition of the Tara Polaris (2026–2046) programme, is essential for providing an initial assessment of the impacts of global change on the Arctic and the wider Earth system, while advancing knowledge on the Central Arctic Ocean ecosystems.

  • 18months

  • 220scientific protocols

  • 12people onboard in winter

  • 18people onboard in spring and summer

Marcel Babin, Polar Oceanographer, CNRS/Laval University/Sorbonne, Co-Scientific Director of the Tara Polaris programme, Scientific Director of the Tara Polaris I (2026-2027) expedition

“We urgently need observations to better understand the nature of the changes happening in the Arctic, particularly to capture the full annual cycle and track interannual variability. The Tara Polaris (2026–2046) programme will bear witness to the history of the Arctic.”

Tara Polar Station, will be deployed in the Central Arctic Ocean for 10 consecutive expeditions (Tara Polaris I, II, III, etc.) until 2046. A true drifting scientific hub, this laboratory-observatory hosts researchers from all over the world.

The Arctic, the sentinel of climate change

In recent decades, the Central Arctic Ocean has been increasingly threatened by global warming and human-induced pollution. The rapid pace of change and the fact that what happens in the Arctic has an impact on the entire planet make the Arctic our sentinel of global changes. It is essential to understand this unique ecosystem in order to inform climate models and policies in this region, which faces multiple pressures (environmental, geopolitical and economic).

Read more on the Arctic

Tara Polaris I (2026–2027) is organized in three scientific legs (winter, spring and summer) during which scientists from around the world have access to 6 laboratories and a scientific base camp that is set up around Tara Polar Station. A full set of instruments is deployed to study the atmosphere, the surface layer of sea ice and snow,  and the underlying Ocean, as well as their interactions.

Base Camp
Tara Polaris I scientific base camp ©Tara Ocean Foundation

Assessing the Central Arctic Ocean health

Tara Polaris (2026-2046) programme is essential to understand the state of the Arctic and inform decision-makers through scientific evidence. The key scientific outcomes are : 

Push the boundaries of knowledge on biodiversity by exploring regions that are difficult to access


Discover the unique adaptations that have evolved to enable life in this extreme environment


Analyze the consequences of sea ice melt and pollution on these fragile ecosystems


Identify new molecules, species and processes with potential new applications


Monitor Arctic fish stocks and the impact of the arrival of more temperate species


Provide new data to refine climate models and improve forecasts of future weather conditions


 

Read more about Tara Polaris I
David Monmarché

Team

Scientific consortium

Tara Polaris I is coordinated by a consortium of more than 35 laboratories from 12 different countries: France, Canada, Germany, Norway, Switzerland, Finland, Denmark, Spain, Belgium, the United States, Israel and Japan. Beyond the coordinating team, there are many more scientists involved in the expedition. 

Marcel Babin, Océanographe, Université Laval/CNRS

Marcel Babin

Co-Scientific Director of the Tara Polaris programme and Scientific Director of Tara Polaris I Polar Oceanographer CNRS/Laval University/Sorbonne

Lee Karp Boss

Lee Karp-Boss

Co-Scientific Director of the Tara Polaris programme Marine Biologist University of Maine

Chris Bowler, Co-directeur de la Mission Microbiomes.

Chris Bowler

Co-Scientific Director of the Tara Polaris programme Phytoplankton Biologist ENS/CNRS

Scientific publications

09/01/2026

The Tara Polaris scientific vision: Advancing our understanding of the central Arctic Ocean to better address life in the Earth System

Babin, Marcel ; Karp-Boss, Lee ; Bowler, Chris ; Ardyna, Mathieu ; Flores, J. Michel ; Geoffroy, Maxime ; Ghiglione, Jean-Francois ; Law, Kathy S. ; Nicolaus, Marcel ; Rabe, Benjamin ; Schmale, Julia ; Acinas, Silvia G. ; Deming, Jody W. ; Galand, Pierre E. ; Linkowski, Thomas ; Moulin, Clementine ; Pelletier, Eric ; Polyakov, Igor ; Raut, Jean-Christophe ; Rysgaard, Soren ; Vancoppenolle, Martin ; Troublé, Romain

Tara Polaris

27/01/2026

Oceanography, biogeochemical cycles, and biodiversity in the Central Arctic Ocean: current state of knowledge and directions for future

Maxime Geoffroy, Igor Polyakov, Marit Reigstad, Silvia G Acinas, Rémi Amiraux, et al.. Oceanography, biogeochemical cycles, and biodiversity in the Central Arctic Ocean: current state of knowledge and directions for future. Elementa: Science of the Anthropocene, In press. ⟨hal-05480562⟩

Tara Polaris

19/01/2026

Tara Polaris expeditions: seasonal and long-term contaminant monitoring in the changing central Arctic

Jean-François Ghiglione, Lars-Eric Heimbürger-Boavida, Marion Fourquez, Ian Hough, Jeroen E. Sonke, et al.. Tara Polaris expeditions: seasonal and long-term contaminant monitoring in the changing central Arctic. 2026. ⟨hal-05466231⟩

Tara Polaris

13/01/2026

Tara Polaris expeditions: Sustained decadal observations of the coupled Arctic system in rapid transition

Mathieu Ardyna, Marcel Nicolaus, Marie-Noëlle Houssais, Jean-Christophe Raut, Hélène Angot (IGE), Kelsey Bisson, Kristina A Brown, J Michel Flores, Pierre E Galand (LECOB, LECOB), Jean-François Ghiglione, Kathy S Law, François Ravetta, Julia Schmale, Jeroen E Sonke, Marcel Babin, Maxime Geoffroy, Lars-Eric Heimbürger-Boavida, Connie Lovejoy, Søren Rysgaard, Nina Schuback, Martin Vancoppenolle, Jean-Eric Tremblay, Chris Bowler, Lee Karp-Boss, Romain Troublé

Tara Polaris

06/01/2026

Microbial life in Arctic pack ice: Prospects for the Tara Polaris expeditions

Martin Vancoppenolle, Jody W Deming, Søren Rysgaard, François Fripiat, Silvia G Acinas, et al.. Microbial life in Arctic pack ice: Prospects for the Tara Polaris expeditions. Elementa: Science of the Anthropocene, In press. ⟨hal-05444879⟩

Tara Polaris

05/11/2025

Tara Polaris: Shedding light on microbial and climate feedback processes in the Arctic atmosphere

Julia Schmale, J. Michel Flores, Kathy S. Law, Jean-Christophe Raut, James O’Brien, Assaf Vardi, Ilan Koren, François Ravetta, Slimane Bekki, Andrea Pazmino, Mathieu Ardyna, Maxime Geoffroy, Connie Lovejoy, Marcel Nicolaus, Marcel Babin, Chris Bowler, Lee Karp-Boss

Tara Polaris