Search Results - "Lacour, Léo"

Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean by Ardyna, Mathieu, Lacour, Léo, Sergi, Sara, d’Ovidio, Francesco, Sallée, Jean-Baptiste, Rembauville, Mathieu, Blain, Stéphane, Tagliabue, Alessandro, Schlitzer, Reiner, Jeandel, Catherine, Arrigo, Kevin Robert, Claustre, Hervé

“…Hydrothermal activity is significant in regulating the dynamics of trace elements in the ocean. Biogeochemical models suggest that hydrothermal iron might play…”
Get full text

The evolution of light and vertical mixing across a phytoplankton ice-edge bloom by Randelhoff, Achim, Oziel, Laurent, Massicotte, Philippe, Bécu, Guislain, Galí, Martí, Lacour, Léo, Dumont, Dany, Vladoiu, Anda, Marec, Claudie, Bruyant, Flavienne, Houssais, Marie-Noëlle, Tremblay, Jean-Éric, Deslongchamps, Gabrièle, Babin, Marcel

“…During summer, phytoplankton can bloom in the Arctic Ocean, both in open water and under ice, often strongly linked to the retreating ice edge. There, the…”
Get full text

Marine snow morphology illuminates the evolution of phytoplankton blooms and determines their subsequent vertical export by Trudnowska, Emilia, Lacour, Léo, Ardyna, Mathieu, Rogge, Andreas, Irisson, Jean Olivier, Waite, Anya M., Babin, Marcel, Stemmann, Lars

“…The organic carbon produced in the ocean’s surface by phytoplankton is either passed through the food web or exported to the ocean interior as marine snow. The…”
Get full text

In situ evaluation of spaceborne CALIOP lidar measurements of the upper-ocean particle backscattering coefficient by Lacour, Léo, Larouche, Raphael, Babin, Marcel

“…The spaceborne CALIOP lidar, initially designed for atmospheric measurements, was recently used to retrieve the particulate backscattering coefficient ( b bp )…”
Get full text

Seasonality of downward carbon export in the Pacific Southern Ocean revealed by multi-year robotic observations by Lacour, Léo, Llort, Joan, Briggs, Nathan, Strutton, Peter G., Boyd, Philip W.

“…At high latitudes, the biological carbon pump, which exports organic matter from the surface ocean to the interior, has been attributed to the gravitational…”
Get full text

BioGeoChemical‐Argo Floats Reveal Stark Latitudinal Gradient in the Southern Ocean Deep Carbon Flux Driven by Phytoplankton Community Composition by Terrats, Louis, Claustre, Hervé, Briggs, Nathan, Poteau, Antoine, Briat, Benjamin, Lacour, Léo, Ricour, Florian, Mangin, Antoine, Neukermans, Griet

“…The gravitational sinking of particles in the mesopelagic layer (∼200–1,000 m) transfers to the deep ocean a part of atmospheric carbon fixed by phytoplankton…”
Get full text

Phytoplankton biomass cycles in the North Atlantic subpolar gyre: A similar mechanism for two different blooms in the Labrador Sea by Lacour, Léo, Claustre, Hervé, Prieur, Louis, D'Ortenzio, Fabrizio

“…An analysis of seasonal variations in climatological surface chlorophyll points to distinct biogeographical zones in the North Atlantic subpolar gyre. In…”
Get full text

Going Beyond Standard Ocean Color Observations: Lidar and Polarimetry by Jamet, Cedric, Ibrahim, Amir, Ahmad, Ziauddin, Angelini, Federico, Babin, Marcel, Behrenfeld, Michael J., Boss, Emmanuel, Cairns, Brian, Churnside, James, Chowdhary, Jacek, Davis, Anthony B., Dionisi, Davide, Duforet-Gaurier, Lucile, Franz, Brian, Frouin, Robert, Gao, Meng, Gray, Deric, Hasekamp, Otto, He, Xianqiang, Hostetler, Chris, Kalashnikova, Olga V., Knobelspiesse, Kirk, Lacour, Leo, Loisel, Hubert, Martins, Vanderlei, Rehm, Eric, Remer, Lorraine, Sanhaj, Idriss, Stamnes, Knut, Stamnes, Snorre, Victori, Stephane, Werdell, Jeremy, Zhai, Peng-Wang

“…Passive ocean color images have provided a sustained synoptic view of the distribution of ocean optical properties and color and biogeochemical parameters for…”
Get full text

Wildfire aerosol deposition likely amplified a summertime Arctic phytoplankton bloom by Ardyna, Mathieu, Hamilton, Douglas S., Harmel, Tristan, Lacour, Léo, Bernstein, Diana N., Laliberté, Julien, Horvat, Christopher, Laxenaire, Rémi, Mills, Matthew M., van Dijken, Gert, Polyakov, Igor, Claustre, Hervé, Mahowald, Natalie, Arrigo, Kevin Robert

“…Abstract Summertime wildfire activity is increasing in boreal forest and tundra ecosystems in the Northern Hemisphere. However, the impact of long range…”
Get full text

Environmental drivers of under-ice phytoplankton bloom dynamics in the Arctic Ocean by Ardyna, Mathieu, Mundy, C. J., Mills, Matthew M., Oziel, Laurent, Grondin, Pierre-Luc, Lacour, Léo, Verin, Gauthier, van Dijken, Gert, Ras, Joséphine, Alou-Font, Eva, Babin, Marcel, Gosselin, Michel, Tremblay, Jean-Éric, Raimbault, Patrick, Assmy, Philipp, Nicolaus, Marcel, Claustre, Hervé, Arrigo, Kevin R.

“…The decline of sea-ice thickness, area, and volume due to the transition from multi-year to first-year sea ice has improved the under-ice light environment for…”
Get full text

Arctic mid-winter phytoplankton growth revealed by autonomous profilers by Randelhoff, Achim, Lacour, Léo, Marec, Claudie, Leymarie, Edouard, Lagunas, José, Xing, Xiaogang, Darnis, Gérald, Penkerc'h, Christophe, Sampei, Makoto, Fortier, Louis, D'Ortenzio, Fabrizio, Claustre, Hervé, Babin, Marcel

“…It is widely believed that during winter and spring, Arctic marine phytoplankton cannot grow until sea ice and snow cover start melting and transmit sufficient…”
Get full text

A seasonal dipolar eddy near Ras Al Hamra (Sea of Oman) by L’Hégaret, Pierre, Lacour, Léo, Carton, Xavier, Roullet, Guillaume, Baraille, Rémy, Corréard, Stéphanie

“…Trajectories and hydrological data from two Argo floats indicate that warm and salty water at 200–300-m depths was ejected from the coast of Oman, near Ras al…”
Get full text

Preparing the New Phase of Argo: Scientific Achievements of the NAOS Project by Le Traon, Pierre-Yves, D’Ortenzio, Fabrizio, Babin, Marcel, Leymarie, Edouard, Marec, Claudie, Pouliquen, Sylvie, Thierry, Virginie, Cabanes, Cecile, Claustre, Hervé, Desbruyères, Damien, Lacour, Leo, Lagunas, Jose-Luis, Maze, Guillaume, Mercier, Herle, Penkerc’h, Christophe, Poffa, Noe, Poteau, Antoine, Prieur, Louis, Racapé, Virginie, Randelhoff, Achim, Rehm, Eric, Schmechtig, Catherine Marie, Taillandier, Vincent, Wagener, Thibaut, Xing, Xiaogang

“…Argo, the international array of profiling floats, is a major component of the global ocean and climate observing system. In 2010, the NAOS (Novel Argo…”
Get full text

Wildfire aerosol deposition likely amplified a summertime Arctic phytoplankton bloom by Ardyna, Mathieu, Hamilton, Douglas S., Harmel, Tristan, Lacour, Léo, Bernstein, Diana N., Laliberté, Julien, Horvat, Christopher, Laxenaire, Rémi, Mills, Matthew M., van Dijken, Gert, Polyakov, Igor, Claustre, Hervé, Mahowald, Natalie, Arrigo, Kevin Robert

“…Summertime wildfire activity is increasing in boreal forest and tundra ecosystems in the Northern Hemisphere. However, the impact of long range transport and…”
Get full text

Arctic mid-winter phytoplankton growth revealed by autonomous profilers by Randelhoff, Achim, Lacour, Léo, Marec, Claudie, Leymarie, Edouard, Lagunas, José, Xing, Xiaogang, Darnis, Gérald, Penkerc’h, Christophe, Sampei, Makoto, Fortier, Louis, D’ortenzio, Fabrizio, Claustre, Hervé, Babin, Marcel

Get full text

Deep Chlorophyll Maxima in the Global Ocean: Occurrences, Drivers and Characteristics by Cornec, M., Claustre, H., Mignot, A., Guidi, L., Lacour, L., Poteau, A., D'Ortenzio, F., Gentili, B., Schmechtig, C.

“…Stratified oceanic systems are characterized by the presence of a so‐called Deep Chlorophyll a Maximum (DCM) not detectable by ocean color satellites. A DCM…”
Get full text

The Intraseasonal Dynamics of the Mixed Layer Pump in the Subpolar North Atlantic Ocean: A Biogeochemical‐Argo Float Approach by Lacour, L., Briggs, N., Claustre, H., Ardyna, M., Dall'Olmo, G.

“…The detrainment of organic matter from the mixed layer, a process known as the mixed layer pump (ML pump), has long been overlooked in carbon export budgets…”
Get full text

Controls on Polar Southern Ocean Deep Chlorophyll Maxima: Viewpoints From Multiple Observational Platforms by Boyd, Philip W., Antoine, David, Baldry, Kimberley, Cornec, Marin, Ellwood, Michael, Halfter, Svenja, Lacour, Leo, Latour, Pauline, Strzepek, Robert F., Trull, Thomas W., Rohr, Tyler

“…Deep Chlorophyll Maxima (DCMs) are ubiquitous in low‐latitude oceans, and of recognized biogeochemical and ecological importance. DCMs have been observed in…”
Get full text

Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay by Oziel, L., Massicotte, P., Randelhoff, A., Ferland, J., Vladoiu, A., Lacour, L., Galindo, V., Lambert-Girard, S., Dumont, D., Cuypers, Y., Bouruet-Aubertot, P., Mundy, C.-J., Ehn, J., Bécu, G., Marec, C., Forget, M.-H., Garcia, N., Coupel, P., Raimbault, P., Houssais, M.-N., Babin, M.

“…Arctic sea ice is experiencing a shorter growth season and an earlier ice melt onset. The significance of spring microalgal blooms taking place prior to sea…”
Get full text