Search Results - "Dupouy, Cécile"

Unsupervised Optical Classification of the Seabed Color in Shallow Oligotrophic Waters from Sentinel-2 Images: A Case Study in the Voh-Koné-Pouembout Lagoon (New Caledonia) by Wattelez, Guillaume, Dupouy, Cécile, Juillot, Farid

“…Monitoring chlorophyll-a concentration or turbidity is crucial for understanding and managing oligo- to mesotrophic coastal waters quality. However, mapping…”
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Characterization and sources of colored dissolved organic matter in a coral reef ecosystem subject to ultramafic erosion pressure (New Caledonia, Southwest Pacific) by Martias, Chloé, Tedetti, Marc, Lantoine, François, Jamet, Léocadie, Dupouy, Cécile

“…The eastern lagoon of New Caledonia (NC, Southwest Pacific), listed as a UNESCO World Heritage site, hosts the world's second longest double-barrier coral…”
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Sinking Trichodesmium fixes nitrogen in the dark ocean by Benavides, Mar, Bonnet, Sophie, Le Moigne, Frédéric A. C., Armin, Gabrielle, Inomura, Keisuke, Hallstrøm, Søren, Riemann, Lasse, Berman-Frank, Ilana, Poletti, Emilie, Garel, Marc, Grosso, Olivier, Leblanc, Karine, Guigue, Catherine, Tedetti, Marc, Dupouy, Cécile

“…The photosynthetic cyanobacterium Trichodesmium is widely distributed in the surface low latitude ocean where it contributes significantly to N 2 fixation and…”
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Impact of ashes from the 2022 Tonga volcanic eruption on satellite ocean color signatures by Whiteside, Andra, Dupouy, Cécile, Singh, Awnesh, Bani, Philipson, Tan, Jing, Frouin, Robert

“…A powerful eruption within the Hunga Tonga-Hunga Ha’apai (HTHH) volcano (20.64°S, 175.19°W) in the Kingdom of Tonga, occurred on 15 January 2022. The volcanic…”
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A Review of Ocean Color Algorithms to Detect Trichodesmium Oceanic Blooms and Quantify Chlorophyll Concentration in Shallow Coral Lagoons of South Pacific Archipelagos by Dupouy, Cécile, Whiteside, Andra, Tan, Jing, Wattelez, Guillaume, Murakami, Hiroshi, Andréoli, Rémi, Lefèvre, Jérôme, Röttgers, Rüdiger, Singh, Awnesh, Frouin, Robert

“…The oceanic waters of the Southwest Tropical Pacific occupy a vast region including multiple Pacific Island Countries. The state of these waters is determinant…”
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Automatic Detection of Optical Signatures within and around Floating Tonga-Fiji Pumice Rafts Using MODIS, VIIRS, and OLCI Satellite Sensors by Whiteside, Andra, Dupouy, Cécile, Singh, Awnesh, Frouin, Robert, Menkes, Christophe, Lefèvre, Jerome

“…An underwater volcanic eruption off the Vava’u island group in Tonga on 7 August 2019 resulted in the creation of floating pumice on the ocean’s surface…”
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Modelling N 2 fixation related to Trichodesmium sp.: driving processes and impacts on primary production in the tropical Pacific Ocean by Dutheil, Cyril, Aumont, Olivier, Gorguès, Thomas, Lorrain, Anne, Bonnet, Sophie, Rodier, Martine, Dupouy, Cécile, Shiozaki, Takuhei, Menkes, Christophe

“…Dinitrogen fixation is now recognized as one of the major sources of bio-available nitrogen in the ocean. Thus, N2 fixation sustains a significant part of the…”
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Dynamics and controls of heterotrophic prokaryotic production in the western tropical South Pacific Ocean: links with diazotrophic and photosynthetic activity by Van Wambeke, France, Gimenez, Audrey, Duhamel, Solange, Dupouy, Cécile, Lefevre, Dominique, Pujo-Pay, Mireille, Moutin, Thierry

“…Heterotrophic prokaryotic production (BP) was studied in the western tropical South Pacific (WTSP) using the leucine technique, revealing spatial and temporal…”
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Bio-Optical Characterization and Ocean Colour Inversion in the Eastern Lagoon of New Caledonia, South Tropical Pacific by Favareto, Luciane, Rudorff, Natália, Kampel, Milton, Frouin, Robert, Röttgers, Rüdiger, Doxaran, David, Murakami, Hiroshi, Dupouy, Cécile

“…The Eastern Lagoon of New Caledonia (ELNC) is a semi-enclosed system surrounded by 21 an extensive coral reef barrier. The system has been suffering impacts…”
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Dissolved Organic Matter Influences N2 Fixation in the New Caledonian Lagoon (Western Tropical South Pacific) by Benavides, Mar, Martias, Chloé, Elifantz, Hila, Berman-Frank, Ilana, Dupouy, Cécile, Bonnet, Sophie

“…Specialized prokaryotes performing biological dinitrogen (N2) fixation ('diazotrophs') provide an important source of fixed nitrogen in oligotrophic marine…”
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Diazotrophic Trichodesmium impact on UV–Vis radiance and pigment composition in the western tropical South Pacific by Dupouy, Cecile, Frouin, Robert, Tedetti, Marc, Maillard, Morgane, Rodier, Martine, Lombard, Fabien, Guidi, Lionel, Picheral, Marc, Neveux, Jacques, Duhamel, Solange, Charriere, Bruno, Sempere, Richard

“…We assessed the influence of the marine diazotrophic cyanobacterium Trichodesmium on the bio-optical properties of western tropical South Pacific (WTSP) waters…”
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A Statistical Algorithm for Estimating Chlorophyll Concentration in the New Caledonian Lagoon by Wattelez, Guillaume, Dupouy, Cecile, Mangeas, Morgan, Lefevre, Jerome, Frouin, Robert

“…Spatial and temporal dynamics of phytoplankton biomass and water turbidity can provide crucial information about the function, health and vulnerability of…”
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Impact of Contrasted Weather Conditions on CDOM Absorption/Fluorescence and Biogeochemistry in the Eastern Lagoon of New Caledonia by Dupouy, Cécile, Röttgers, Rüdiger, Tedetti, Marc, Frouin, Robert, Lantoine, François, Rodier, Martine, Martias, Chloe, Goutx, Madeleine

“…New Caledonia (Southwest Pacific), like all tropical Pacific Island countries, is impacted by weather events, climate change, and local anthropogenic forcing…”
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Programmed cell death in diazotrophs and the fate of organic matter in the western tropical South Pacific Ocean during the OUTPACE cruise by Spungin, Dina, Belkin, Natalia, Foster, Rachel A, Stenegren, Marcus, Caputo, Andrea, Pujo-Pay, Mireille, Leblond, Nathalie, Dupouy, Cécile, Bonnet, Sophie, Berman-Frank, Ilana

“…The fate of diazotroph (N2 fixers) derived carbon (C) and nitrogen (N) and their contribution to vertical export of C and N in the western tropical South…”
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Modelling N2 fixation related to Trichodesmium sp.: driving processes and impacts on primary production in the tropical Pacific Ocean by Dutheil, Cyril, Aumont, Olivier, Gorguès, Thomas, Lorrain, Anne, Bonnet, Sophie, Rodier, Martine, Dupouy, Cécile, Shiozaki, Takuhei, Menkes, Christophe

“…Dinitrogen fixation is now recognized as one of the major sources of bio-available nitrogen in the ocean. Thus, N2 fixation sustains a significant part of the…”
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Optical Algorithms at Satellite Wavelengths for Total Suspended Matter in Tropical Coastal Waters by Ouillon, Sylvain, Douillet, Pascal, Petrenko, Anne, Neveux, Jacques, Dupouy, Cécile, Froidefond, Jean-Marie, Andréfouët, Serge, Muñoz-Caravaca, Alain

“…Is it possible to derive accurately Total Suspended Matter concentration or its proxy, turbidity, from remote sensing data in tropical coastal lagoon waters?…”
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Inherent optical properties and satellite retrieval of chlorophyll concentration in the lagoon and open ocean waters of New Caledonia by Dupouy, Cécile, Neveux, Jacques, Ouillon, Sylvain, Frouin, Robert, Murakami, Hiroshi, Hochard, Sébastien, Dirberg, Guillaume

“…The retrieval of chlorophyll-a concentration from remote sensing reflectance (Rrs) data was tested with the NASA OC4v4 algorithm on the inner New Caledonian…”
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Seasonal Shifts in Diazotrophs Players: Patterns Observed Over a Two-Year Time Series in the New Caledonian Lagoon (Western Tropical South Pacific Ocean) by Saulia, Emmrick, Benavides, Mar, Henke, Britt, Turk-Kubo, Kendra, Cooperguard, Haley, Grosso, Olivier, Desnues, Anne, Rodier, Martine, Dupouy, Cécile, Riemann, Lasse, Bonnet, Sophie

“…Coastal and open ocean regions of the Western Tropical South Pacific ocean have been identified as a hotspot of N2 fixation. However, the environmental factors…”
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Application of the Support Vector Regression Method for Turbidity Assessment with MODIS on a Shallow Coral Reef Lagoon (Voh-Koné-Pouembout, New Caledonia) by Wattelez, Guillaume, Dupouy, Cécile, Lefèvre, Jérôme, Ouillon, Sylvain, Fernandez, Jean-Michel, Juillot, Farid

“…Particle transport by erosion from ultramafic lands in pristine tropical lagoons is a crucial problem, especially for the benthic and pelagic biodiversity…”
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Remote sensing of Trichodesmium spp. mats in the western tropical South Pacific by Rousset, Guillaume, De Boissieu, Florian, Menkes, Christophe E, Lefevre, Jerome, Frouin, Robert, Rodier, Martine, Ridoux, Vincent, Laran, Sophie, Bonnet, Sophie, Dupouy, Cecile

“…Trichodesmium is the major nitrogen-fixing species in the western tropical South Pacific (WTSP) region, a hot spot of diazotrophy. Due to the paucity of in…”
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