Search Results - "Caquineau, Sandrine"

Quantitative study of the mineralogical composition of mineral dust aerosols by X-ray diffraction by Nowak, Sophie, Lafon, Sandra, Caquineau, Sandrine, Journet, Emilie, Laurent, Benoit

“…Mineral dust aerosols, produced by wind erosion in arid regions and semi-arid surfaces, are important components of the atmosphere that affect the Earth…”
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Fish debris in sediments from the last 25 kyr in the Humboldt Current reveal the role of productivity and oxygen on small pelagic fishes by Salvatteci, Renato, Gutierrez, Dimitri, Field, David, Sifeddine, Abdel, Ortlieb, Luc, Caquineau, Sandrine, Baumgartner, Tim, Ferreira, Vicente, Bertrand, Arnaud

“…•Anchovy and other fishes fluctuated from multidecadal to millennial timescales.•Productivity appears as the main factor controlling small pelagic fish…”
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Mineralogy as a critical factor of dust iron solubility by Journet, Emilie, Desboeufs, Karine V., Caquineau, Sandrine, Colin, Jean-Louis

“…To understand the impact of dust deposition on ocean primary productivity, the evaluation of dust input is not sufficient, and the soluble iron supply is also…”
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Global scale variability of the mineral dust long-wave refractive index: a new dataset of in situ measurements for climate modeling and remote sensing by Di Biagio, Claudia, Formenti, Paola, Balkanski, Yves, Caponi, Lorenzo, Cazaunau, Mathieu, Pangui, Edouard, Journet, Emilie, Nowak, Sophie, Caquineau, Sandrine, Andreae, Meinrat O, Kandler, Konrad, Saeed, Thuraya, Piketh, Stuart, Seibert, David, Williams, Earle, Doussin, Jean-François

“…Modeling the interaction of dust with long-wave (LW) radiation is still a challenge because of the scarcity of information on the complex refractive index of…”
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Diatom-based paleoproductivity and climate change record of the Gulf of Tehuantepec (Eastern Tropical Pacific) during the last ~500 years by Almaraz-Ruiz, Laura, Machain-Castillo, María Luisa, Sifeddine, Abdelfettah, Ruiz-Fernández, Ana Carolina, Sanchez-Cabeza, Joan-Albert, Rodríguez-Ramírez, Alejandro, López-Mendoza, Perla Guadalupe, Mendez-Millan, Mercedes, Caquineau, Sandrine

“…Changes in marine productivity of the last five centuries in the Gulf of Tehuantepec were investigated using a high-resolution record of diatoms, organic…”
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Characterization of iron oxides in mineral dust aerosols: Implications for light absorption by Lafon, Sandra, Sokolik, Irina N., Rajot, Jean Louis, Caquineau, Sandrine, Gaudichet, Annie

“…We report on measurements that were specifically designed to determine iron oxides in mineral dust aerosols needed for improved optical modeling. Atmospheric…”
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Hydroclimate reconstruction during the last 1000 years inferred from the mineralogical and geochemical composition of a sediment core from Lake-Azuei (Haiti) by Noncent, David, Sifeddine, Abdelfettah, Emmanuel, Evens, Cormier, Marie-Helene, Briceño-Zuluaga, Francisco J, Mendez-Millan, Mercedes, Turcq, Bruno, Caquineau, Sandrine, Valdés, Jorge, Bernal, Juan Pablo, King, John W, Djouraev, Irina, Cetin, Fethiye, Sloan, Heather

“…This study aims to reconstruct the hydro-climatic variations over the last 1000 years in Haiti using mineralogical and geochemical composition of well dated…”
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Mineralogy of Saharan dust transported over northwestern tropical Atlantic Ocean in relation to source regions by Caquineau, Sandrine, Gaudichet, Annie, Gomes, Laurent, Legrand, Michel

“…On the basis of daily Saharan dust samples collected at Sal Island (Cape Verde Archipelagos) and Barbados (Caribbean Sea) over 3 years, this study focuses on…”
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Role of the fungus-growing termite Pseudacanthotermes spiniger (Isoptera, Macrotermitinae) in the dynamic of clay and soil organic matter content. An experimental analysis by Jouquet, Pascal, Bottinelli, Nicolas, Lata, Jean-Christophe, Mora, Philippe, Caquineau, Sandrine

“…This work focuses on the interactions between fungus-growing termites (Isoptera, Macrotermitinae), clay particles and soil organic matter (SOM). As major…”
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Mineralogical characteristics of soil dust from source regions in northern China by Shen, Zhenxing, Caquineau, Sandrine, Cao, Junji, Zhang, Xiaoye, Han, Yuemei, Gaudichet, Annie, Gomes, Laurent

“…Mineral compositions of aerosol particles were investigated at four sites （Aksu, Dunhuang, Zhenbeitai, and Tongliao） in desert regions of northern China from…”
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Saharan dust: Clay ratio as a relevant tracer to assess the origin of soil-derived aerosols by Caquineau, Sandrine, Gaudichet, Annie, Gomes, Laurent, Magonthier, Marie-Claude, Chatenet, Bernadette

“…The aim of this study is to find a tracer allowing retrieval of the regional origin of mineral dust for Saharan aerosols transported over the North Atlantic…”
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Mechanisms of lateral and linear extension of gullies (dongas) in a subhumid grassland of South Africa by Podwojewski, Pascal, Janeau, Jean Louis, Caquineau, Sandrine, Hughes, Jeffrey

“…The formation of deep gullies (called ‘dongas’ locally) in rangeland in KwaZulu‐Natal Province in South Africa is a natural phenomenon. These U‐shaped, very…”
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Biogenic and lithogenic silicon along the GEOTRACES south West Indian Ocean section (SWINGS-GS02) and the islands mass effect on regional Si biogeochemical cycle by Deteix, Valentin, Cotard, Edwin, Caquineau, Sandrine, Landing, William M., Planchon, Frédéric, Ryan-Keogh, Thomas, Cardinal, Damien

“…The distribution and cycling of biogenic silica (BSi) and lithogenic silicon (LSi) in the ocean play crucial roles in the global silicon cycle and marine…”
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Termite graveyards. Hidden geochemical patches? by Jouquet, Pascal, Bultelle, Angélique, Djouraev, Irina, Caquineau, Sandrine, Hervé, Vincent, Vasseur-Cognet, Mireille

“…Entombment, or the production of graveyards for the disposal of dead bodies, is not only a practice of human societies but is also observed in nature,…”
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Abrupt increase in the coastal uplift and earthquake rate since ∼40 ka at the northern Chile seismic gap in the Central Andes by González-Alfaro, José, Vargas, Gabriel, Ortlieb, Luc, González, Gabriel, Ruiz, Sergio, Báez, Juan C., Mandeng-Yogo, Magloire, Caquineau, Sandrine, Álvarez, Gabriel, del Campo, Francisco, del Río, Ian

“…Over long-term geological scales, the position and vertical movements of the coast are considered to be among the most important effects resulting from…”
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Bioturbation and soil resistance to wind erosion in Southern Tunisia by Jouquet, P., Henry-des-Tureaux, T., Bouet, C., Labiadh, M., Caquineau, S., Aroui Boukbida, H., Garcia Ibarra, F., Hervé, V., Bultelle, A., Podwojewski, P.

“…•Termites, rodents and ants are the main bioturbators in South-eastern Tunisia.•Termite sheetings have specific properties in comparison with the other soil…”
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Coastal wetland responses to a century of climate change in northern Sahara, Morocco by Nogueira, Juliana, Evangelista, Heitor, Bouchaou, Lhoussaine, Moreira, Luciane, Sifeddine, Abdelfettah, ElMouden, Ahmed, Msanda, Fouad, Caquineau, Sandrine, Briceño‐Zuluaga, Francisco Javier, Licínio, Marcus Vinicius, Mandeng‐Yogo, Magloire, Mendez‐Millan, Mercedes, Cordeiro, Renato C., Knoppers, Bastiaan, Moreira‐Ramírez, Manuel, Martins, Renato

“…Coastal wetlands are highly sensitive to changes occurring at the coastline. It is critically important to determine region‐specific projections for these…”
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Planktonic foraminiferal assemblages and particle fluxes at the entrance of the Gulf of California highlight the effects of the strong El Niño 2015–2016 by Antonio Nava-Fernández, Xinantecatl, Luisa Machain-Castillo, María, Sifeddine, Abdelfettah, Mendez-Millan, Mercedes, Caquineau, Sandrine, Gibson, Kelly A., Tappa, Eric, Carolina Ruiz-Fernández, Ana, Sanchez-Cabeza, Joan-Albert, Rodríguez-Ramírez, Alejandro, Rebeca Lara-Cera, Andrea

“…•El Niño 2015–2016 event induces changes in planktonic foraminiferal assemblages.•Globigerinoides tenellus foraminiferal assemblage dominates during El Niño…”
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Changes of bottom water oxygenation during the last half millennium in the Gulf of Tehuantepec (Eastern Tropical North Pacific): A multiproxy approach by Almaraz-Ruiz, Laura, Machain-Castillo, María Luisa, Sifeddine, Abdelfettah, Ruiz-Fernández, Ana Carolina, Sanchez-Cabeza, Joan-Albert, Rodríguez-Ramírez, Alejandro, Mendez-Millan, Mercedes, Caquineau, Sandrine

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Mapping the physico-chemical properties of mineral dust in western Africa: mineralogical composition by Formenti, P, Caquineau, S, Desboeufs, K, Klaver, A, Chevaillier, S, Journet, E, Rajot, J. L

“…In the last few years, several ground-based and airborne field campaigns have allowed the exploration of the properties and impacts of mineral dust in western…”
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