Search Results - "Desboeufs, K"

Effect of atmospheric organic complexation on iron-bearing dust solubility by Paris, R, Desboeufs, K. V

“…Recent studies reported that the effect of organic complexation may be a potentially important process to be considered by models estimating atmospheric iron…”
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Recent progress in understanding physical and chemical properties of African and Asian mineral dust by Formenti, P., Schütz, L., Balkanski, Y., Desboeufs, K., Ebert, M., Kandler, K., Petzold, A., Scheuvens, D., Weinbruch, S., Zhang, D.

“…This paper presents a review of recently acquired knowledge on the physico-chemical properties of mineral dust from Africa and Asia based on data presented and…”
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Variability of dust iron solubility in atmospheric waters: Investigation of the role of oxalate organic complexation by Paris, R., Desboeufs, K.V., Journet, E.

“…Atmospheric dust deposition is a major external iron source for remote surface ocean waters. Organic complexation is known to play a role in the dissolution of…”
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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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The significance of the episodic nature of atmospheric deposition to Low Nutrient Low Chlorophyll regions by Guieu, C., Aumont, O., Paytan, A., Bopp, L., Law, C. S., Mahowald, N., Achterberg, E. P., Marañón, E., Salihoglu, B., Crise, A., Wagener, T., Herut, B., Desboeufs, K., Kanakidou, M., Olgun, N., Peters, F., Pulido-Villena, E., Tovar-Sanchez, A., Völker, C.

“…In the vast Low Nutrient Low‐Chlorophyll (LNLC) Ocean, the vertical nutrient supply from the subsurface to the sunlit surface waters is low, and atmospheric…”
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Dissolution and solubility of trace metals from natural and anthropogenic aerosol particulate matter by Desboeufs, K.V., Sofikitis, A., Losno, R., Colin, J.L., Ausset, P.

“…An open flow reactor is used to simulate the dissolution process of mineral aerosol particles in atmospheric water droplets. Data on dissolution kinetic and…”
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Regional variability of the composition of mineral dust from western Africa: Results from the AMMA SOP0/DABEX and DODO field campaigns by Formenti, P., Rajot, J. L., Desboeufs, K., Caquineau, S., Chevaillier, S., Nava, S., Gaudichet, A., Journet, E., Triquet, S., Alfaro, S., Chiari, M., Haywood, J., Coe, H., Highwood, E.

“…This paper presents data on elemental and mineralogical composition of mineral dust from various source regions of Africa collected during the African Monsoon…”
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Chemical characterisation of iron in dust and biomass burning aerosols during AMMA-SOP0/DABEX: implication for iron solubility by Paris, R, Desboeufs, K V, menti, P, Nava, S, Chou, C

“…The chemical composition and the soluble fraction were determined in aerosol samples collected during flights of AMMA-SOP0/DABEX campaign, which were conducted…”
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Modeling the global emission, transport and deposition of trace elements associated with mineral dust by Zhang, Y, Mahowald, N, Scanza, R. A, Journet, E, Desboeufs, K, Albani, S, Kok, J. F, Zhuang, G, Chen, Y, Cohen, D. D, Paytan, A, Patey, M. D, Achterberg, E. P, Engelbrecht, J. P, Fomba, K. W

“…Trace element deposition from desert dust has important impacts on ocean primary productivity, the quantification of which could be useful in determining the…”
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Overview of the Dust and Biomass-burning Experiment and African Monsoon Multidisciplinary Analysis Special Observing Period-0 by Haywood, J. M., Pelon, J., Formenti, P., Bharmal, N., Brooks, M., Capes, G., Chazette, P., Chou, C., Christopher, S., Coe, H., Cuesta, J., Derimian, Y., Desboeufs, K., Greed, G., Harrison, M., Heese, B., Highwood, E. J., Johnson, B., Mallet, M., Marticorena, B., Marsham, J., Milton, S., Myhre, G., Osborne, S. R., Parker, D. J., Rajot, J.-L., Schulz, M., Slingo, A., Tanré, D., Tulet, P.

“…The African Monsoon Multidisciplinary Analysis (AMMA) is a major international campaign investigating far‐reaching aspects of the African monsoon, climate and…”
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Quantification of the lithogenic carbon pump following a simulated dust-deposition event in large mesocosms by Bressac, M, Guieu, C, Doxaran, D, Bourrin, F, Desboeufs, K, Leblond, N, Ridame, C

“…Lithogenic particles, such as desert dust, have been postulated to influence particulate organic carbon (POC) export to the deep ocean by acting as mineral…”
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Seasonal variations of the physical and optical characteristics of Saharan dust: Results from the Dust Outflow and Deposition to the Ocean (DODO) experiment by McConnell, C. L., Highwood, E. J., Coe, H., Formenti, P., Anderson, B., Osborne, S., Nava, S., Desboeufs, K., Chen, G., Harrison, M. A. J.

“…North African dust is important for climate through its direct radiative effect on solar and terrestrial radiation and its role in the biogeochemical system…”
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Impact of dust deposition on carbon budget: a tentative assessment from a mesocosm approach by Guieu, C, Ridame, C, Pulido-Villena, E, Bressac, M, Desboeufs, K, Dulac, F

“…By bringing new nutrients and particles to the surface ocean, atmospheric deposition impacts biogeochemical cycles. The extent to which those changes are…”
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Chemical fate and settling of mineral dust in surface seawater after atmospheric deposition observed from dust seeding experiments in large mesocosms by Desboeufs, K, Leblond, N, Wagener, T, Bon Nguyen, E, Guieu, C

“…We report here the elemental composition of sinking particles in sediment traps and in the water column following four artificial dust seeding experiments…”
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Long-range transport across the Atlantic in summertime does not enhance the hygroscopicity of African mineral dust by Denjean, C., Caquineau, S., Desboeufs, K., Laurent, B., Maille, M., Quiñones Rosado, M., Vallejo, P., Mayol-Bracero, O. L., Formenti, P.

“…We present the first direct evidence that the hygroscopic properties of super micron (>1 µm) African dust particles did not change despite undergoing…”
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Large clean mesocosms and simulated dust deposition: a new methodology to investigate responses of marine oligotrophic ecosystems to atmospheric inputs by Guieu, C., Dulac, F., Desboeufs, K., Wagener, T., Pulido-Villena, E., Grisoni, J.-M., Louis, F., Ridame, C., Blain, S., Brunet, C., Bon Nguyen, E., Tran, S., Labiadh, M., Dominici, J.-M.

“…Intense Saharan dust deposition occurs over large oligotrophic areas in the Mediterranean Sea and in the Tropical Atlantic, and its impact on the…”
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Airborne observations of mineral dust over western Africa in the summer Monsoon season: spatial and vertical variability of physico-chemical and optical properties by Formenti, P., Rajot, J. L., Desboeufs, K., Saïd, F., Grand, N., Chevaillier, S., Schmechtig, C.

“…We performed airborne measurements of aerosol particle concentration, composition, size distribution and optical properties over Western Africa in the corridor…”
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Dominance of goethite over hematite in iron oxides of mineral dust from Western Africa: Quantitative partitioning by X-ray absorption spectroscopy by Formenti, P., Caquineau, S., Chevaillier, S., Klaver, A., Desboeufs, K., Rajot, J. L., Belin, S., Briois, V.

“…This paper reports on the X‐ray absorption analysis of samples of mineral dust emitted from or transported to Western Africa. We found that iron oxides…”
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Chemistry of rain events in West Africa: evidence of dust and biogenic influence in convective systems by Desboeufs, K., Journet, E., Rajot, J.-L., Chevaillier, S., Triquet, S., Formenti, P., Zakou, A.

“…This paper documents the chemical composition of 7 rain events associated with mesoscale convective systems sampled at the supersite of Banizoumbou, Niger,…”
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Factors influencing aerosol solubility during cloud processes by Desboeufs, K.V., Losno, R., Colin, J.L.

“…The water-soluble fraction of an aerosol determines its chemical and physical properties and also its behaviour. The origin of the aerosol and its atmospheric…”
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