Voyage end
Voyage end 14 October 2025 Blog entry by Felipe Vilela-Silva We are back in Brittany and other regions of France, excited to begin examining the marine treasures collected near the Flemish Cap. The author of this note believes that our team is grateful for the warm welcome received—under beautiful sunny skies—in the port of St. […]
Measuring ocean change
Measuring ocean change 6 October 2026 Blog entry by Felipe Vilela-Silva, Natalia Vazques Riveiros & Bruno Ferron The crew and scientists on board L’Atalante have obtained 10 short-core samples with sediment and water containing a rich logbook of the last few millennia with valuable information of the past physico-chemical and dynamical conditions at the surface […]
Winds of opportunity
Winds of opportunity 26 September 2025 Blog by Felipe Vilela-Silva We are lucky to have the winds of opportunity blowing in our direction. The southernmost transect of the CROSSROAD-2 voyage was a success with 15 surface-to-bottom oceanographic stations, 3 box core sampling, and recovery of the 4 moorings at the Grand Banks of Newfoundland. Spotting the […]
CROSSROAD-2 mission gets underway
CROSSROAD-2 mission gets underway 20 September 2025 Blog entry by Felipe Vilela-Silva Enthusiastic scientists have just departed from St John’s, Newfoundland to a key region where a significant portion of the AMOC’s lower limb separates from the continental slope and spreads dense water masses formed at higher latitudes towards the interior of the North Atlantic. […]
Turbulence
Turbulence measurements with a free-falling microstructure profiler Friday 29 August 2025 Blog entry by Buu-Lik Duong Turbulence is generally described as an irregular and variable state of flow, in which swirling motions (eddies) of different sizes continuously interact. These eddies range from hundreds of kilometers to a few millimeters passing energy successively to smaller and […]
Gliders – part II
Gliders: Deployment and recovery Wednesday 25 August 2025 Blog entry by Sariaka Ramarherison with Ria Oelerich Both gliders were deployed consecutively in a similar manner. The deployments were carried out from a small rubber boat to prevent damage to the microstructure probes, which require very careful and controlled handling. The following equipment was needed alongside […]
Gliders – part I
What are gliders and how do we prepare them for deployment? Tuesday 26 August 2025 Blog entry by Sariaka Ramarherison with Ria Oelerich Gliders are autonomous underwater vehicles that sample the ocean, driven by changes in their buoyancy — which enables them to float in water. Equipped with an oil pump that adjusts their density, […]
Surface drifters
Choreography of surface drifters – our messengers from the sea Sunday 24 August 2025 Blog entry by Emelie Breunig Surface drifters are like modern-day bottles containing messages: rather than carrying notes, they carry sensors and GPS, enabling us to trace the pathways of ocean currents in real time. They float on the sea’s surface, guided […]
PIES: Pressure Inverted Echo Sounders
PIES: Pressure Inverted Echo Sounders Friday 22 August 2025 Blog post by Francesca Doglioni with Lara Aschenbeck PIES are our friendly Pressure-Inverted Echo Sounders: chirping instruments contained in a round glass casing which will remain anchored for a few years at the bottom of the ocean. PIES are the smallest possible version of moored instruments […]
Oxygen in the ocean
Measuring oxygen in the ocean Monday 18 August 2025 Blog entry by Lina Middendorf Oxygen determination on board – the Winkler Method in action My core task during the expedition is to determine the oxygen content of water samples collected at various depths with the CTD rosette. Although the CTD is equipped with oxygen sensors, […]