Search Results - "d'Ortenzio, Fabrizio"

Climate-Driven Basin-Scale Decadal Oscillations of Oceanic Phytoplankton by Martinez, Elodie, Antoine, David, D'Ortenzio, Fabrizio, Gentili, Bernard

“…Phytoplankton--the microalgae that populate the upper lit layers of the ocean--fuel the oceanic food web and affect oceanic and atmospheric carbon dioxide…”
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Abrupt warming and salinification of intermediate waters interplays with decline of deep convection in the Northwestern Mediterranean Sea by Margirier, Félix, Testor, Pierre, Heslop, Emma, Mallil, Katia, Bosse, Anthony, Houpert, Loïc, Mortier, Laurent, Bouin, Marie-Noëlle, Coppola, Laurent, D’Ortenzio, Fabrizio, Durrieu de Madron, Xavier, Mourre, Baptiste, Prieur, Louis, Raimbault, Patrick, Taillandier, Vincent

“…The Mediterranean Sea is a hotspot for climate change, and recent studies have reported its intense warming and salinification. In this study, we use an…”
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Understanding the seasonal dynamics of phytoplankton biomass and the deep chlorophyll maximum in oligotrophic environments: A Bio-Argo float investigation by Mignot, Alexandre, Claustre, Hervé, Uitz, Julia, Poteau, Antoine, D'Ortenzio, Fabrizio, Xing, Xiaogang

“…We deployed four Bio‐Argo profiling floats in various oligotrophic locations of the Pacific subtropical gyres and Mediterranean Sea to address the seasonal…”
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Changes in phytoplankton bloom phenology over the North Water (NOW) polynya: a response to changing environmental conditions by Marchese, Christian, Albouy, Camille, Tremblay, Jean-Éric, Dumont, Dany, D’Ortenzio, Fabrizio, Vissault, Steve, Bélanger, Simon

“…Marine ecological indicators can be used to assess the condition of the pelagic ecosystems. The bloom onset provides a warning bell for possible changes in…”
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Hyperspectral Radiometry on Biogeochemical-Argo Floats: A Bright Perspective for Phytoplankton Diversity by Organelli, Emanuele, Leymarie, Edouard, Zielinski, Oliver, Uitz, Julia, D’Ortenzio, Fabrizio, Claustre, Hervé

“…Officially established in 2016, the International BGC-Argo program has built its mission on five science pillars and two management needs. One of the grand…”
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Recommendations for obtaining unbiased chlorophyll estimates from in situ chlorophyll fluorometers: A global analysis of WET Labs ECO sensors by Roesler, Collin, Uitz, Julia, Claustre, Hervé, Boss, Emmanuel, Xing, Xiaogang, Organelli, Emanuele, Briggs, Nathan, Bricaud, Annick, Schmechtig, Catherine, Poteau, Antoine, D'Ortenzio, Fabrizio, Ras, Josephine, Drapeau, Susan, Haëntjens, Nils, Barbieux, Marie

“…Chlorophyll fluorometers provide the largest in situ global data set for estimating phytoplankton biomass because of their ease of use, size, power…”
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Quantifying the Impact of Linear Regression Model in Deriving Bio-Optical Relationships: The Implications on Ocean Carbon Estimations by Bellacicco, Marco, Vellucci, Vincenzo, Scardi, Michele, Barbieux, Marie, Marullo, Salvatore, D'Ortenzio, Fabrizio

“…Linear regression is widely used in applied sciences and, in particular, in satellite optical oceanography, to relate dependent to independent variables. It is…”
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Correction of Biogeochemical-Argo Radiometry for Sensor Temperature-Dependence and Drift: Protocols for a Delayed-Mode Quality Control by Jutard, Quentin, Organelli, Emanuele, Briggs, Nathan, Xing, Xiaogang, Schmechtig, Catherine, Boss, Emmanuel, Poteau, Antoine, Leymarie, Edouard, Cornec, Marin, D’Ortenzio, Fabrizio, Claustre, Hervé

“…Measuring the underwater light field is a key mission of the international Biogeochemical-Argo program. Since 2012, 0–250 dbar profiles of downwelling…”
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A Regional Neural Network Approach to Estimate Water-Column Nutrient Concentrations and Carbonate System Variables in the Mediterranean Sea: CANYON-MED by Fourrier, Marine, Coppola, Laurent, Claustre, Hervé, D’Ortenzio, Fabrizio, Sauzède, Raphaëlle, Gattuso, Jean-Pierre

“…A regional neural network-based method, “CANYON-MED” is developed to estimate nutrients and carbonate system variables specifically in the Mediterranean Sea…”
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Radiative Transfer Modeling With Biogeochemical‐Argo Float Data in the Mediterranean Sea by Terzić, Elena, Miró, Arnau, Organelli, Emanuele, Kowalczuk, Piotr, D’Ortenzio, Fabrizio, Lazzari, Paolo

“…A radiative transfer model was parameterized and validated using Biogeochemical Argo float data acquired between 2012 and 2017 across the Mediterranean Sea…”
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Correction of profiles of in‐situ chlorophyll fluorometry for the contribution of fluorescence originating from non‐algal matter by Xing, Xiaogang, Claustre, Hervé, Boss, Emmanuel, Roesler, Collin, Organelli, Emanuele, Poteau, Antoine, Barbieux, Marie, D'Ortenzio, Fabrizio

“…In situ chlorophyll fluorometers have been widely employed for more than half a century, and to date, it still remains the most used instrument to estimate…”
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Impact of Intermittent Convection in the Northwestern Mediterranean Sea on Oxygen Content, Nutrients, and the Carbonate System by Fourrier, Marine, Coppola, Laurent, D’Ortenzio, Fabrizio, Migon, Christophe, Gattuso, Jean‐Pierre

“…Using Argo profiling floats, cruises and mooring data, we reconstructed the dissolved oxygen (O2) dynamics in the Gulf of Lion and the Ligurian Sea, with a…”
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Temporal variability of nutrient concentrations in the northwestern Mediterranean sea (DYFAMED time-series station) by Pasqueron de Fommervault, Orens, Migon, Christophe, D׳Ortenzio, Fabrizio, Ribera d'Alcalà, Maurizio, Coppola, Laurent

“…Nitrate, phosphate, and silicate concentration profiles were measured at monthly frequency at the DYFAMED time-series station (central Ligurian Sea) between…”
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Assessment of uncertainty in the ocean reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS and MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project) by Antoine, David, d'Ortenzio, Fabrizio, Hooker, Stanford B., Bécu, Guislain, Gentili, Bernard, Tailliez, Dominique, Scott, Alec J.

“…The match‐up of satellite‐derived reflectances with in situ observations is crucial to evaluate their quality and temporal stability. To contribute to this…”
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Submesoscale Physical-Biogeochemical Coupling across the Ligurian Current (Northwestern Mediterranean) Using a Bio-Optical Glider by Niewiadomska, Katarzyna, Claustre, Hervé, Prieur, Louis, D'Ortenzio, Fabrizio

“…A bio-optical autonomous underwater gliding vehicle, equipped with a conductivity, temperature, depth (CTD) sensor, an oxygen sensor, backscatter meters,…”
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Combined processing and mutual interpretation of radiometry and fluorometry from autonomous profiling Bio-Argo floats: 2. Colored dissolved organic matter absorption retrieval by Xing, Xiaogang, Morel, André, Claustre, Hervé, D'Ortenzio, Fabrizio, Poteau, Antoine

“…Eight autonomous profiling “Bio‐Argo” floats were deployed offshore during about 2 years (2008–2010) in Pacific, Atlantic, and Mediterranean zones. They were…”
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Biogeochemical Argo: The Test Case of the NAOS Mediterranean Array by D’Ortenzio, Fabrizio, Taillandier, Vincent, Claustre, Hervé, Prieur, Louis Marie, Leymarie, Edouard, Mignot, Alexandre, Poteau, Antoine, Penkerc’h, Christophe, Schmechtig, Catherine Marie

“…The necessity of wide, global-scale observing systems for marine biogeochemistry emerged dramatically in the last decade. A global network based on…”
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CDOM Spatiotemporal Variability in the Mediterranean Sea: A Modelling Study by Lazzari, Paolo, Álvarez, Eva, Terzić, Elena, Cossarini, Gianpiero, Chernov, Ilya, D’Ortenzio, Fabrizio, Organelli, Emanuele

“…This study investigates the spatial and temporal variability of chromophoric-dissolved organic matter (CDOM) in the Mediterranean Sea. The analysis is carried…”
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Assessing the Potential Benefits of the Geostationary Vantage Point for Generating Daily Chlorophyll-a Maps in the Baltic Sea by Bellacicco, Marco, Ciani, Daniele, Doxaran, David, Vellucci, Vincenzo, Antoine, David, Wang, Menghua, D’Ortenzio, Fabrizio, Marullo, Salvatore

“…Currently, observations from low-Earth orbit (LEO) ocean color sensors represent one of the most used tools to study surface optical and biogeochemical…”
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Phytoplankton spring and fall blooms in the North Atlantic in the 1980s and 2000s by Martinez, Elodie, Antoine, David, D'Ortenzio, Fabrizio, de Boyer Montégut, C.

“…Phytoplankton chlorophyll‐a (Chl) seasonal cycles of the North Atlantic are described using satellite ocean color observations covering the 1980s and the…”
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