Search Results - "Léon, Jean François"

Industrial Plume Properties Retrieved by Optimal Estimation Using Combined Hyperspectral and Sentinel-2 Data by Calassou, Gabriel, Foucher, Pierre-Yves, Léon, Jean-François

“…Stack emissions from the industrial sector are a subject of concern for air quality. However, the characterization of the stack emission plume properties from…”
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Quantifying particulate matter optical properties and flow rate in industrial stack plumes from the PRISMA hyperspectral imager by Calassou, Gabriel, Foucher, Pierre-Yves, Léon, Jean-François

“…Industrial activities such as metallurgy, coal and oil combustion, cement production, and petrochemistry release aerosol particles into the atmosphere. We…”
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A Multi Linear Regression Model to Derive Dust PM10 in the Sahel Using AERONET Aerosol Optical Depth and CALIOP Aerosol Layer Products by Léon, Jean-François, Martiny, Nadège, Merlet, Sébastien

“…Due to a limited number of monitoring stations in Western Africa, the impact of mineral dust on PM10 surface concentrations is still poorly known. We propose a…”
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Dust and dust storms over Kuwait: Ground-based and satellite observations by Sabbah, Ismail, Léon, Jean-François, Sorribas, Mar, Guinot, Benjamin, Córdoba-Jabonero, Carmen, de Souza, Amaury, Al Sharifi, Faisal

“…We investigate the consistency between Aerosol Optical Depth (AOD) retrieved by MODerate resolution Imaging Spectroradiometer (MODIS) sensor aboard NASA's Aqua…”
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Impact of the mixing boundary layer on the relationship between PM2.5 and aerosol optical thickness by Boyouk, Neda, Léon, Jean-François, Delbarre, Hervé, Podvin, T., Deroo, C.

“…The purpose of this paper is to study the relationship between columnar aerosol optical thickness and ground-level aerosol mass. A set of Sun photometer,…”
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Variability of Aerosol Optical Depth and Altitude for Key Aerosol Types over Southern West Africa via CALIPSO/CALIOP Observations by Niamien, Adou F., Léon, Jean-François, Adon, Marcellin, Rajot, Jean-Louis, Feron, Anaïs, Yoboué, Véronique

“…The atmosphere of southern West Africa (SWA) is one of the world’s most aerosol-laden regions. This study investigated the seasonal variability of aerosol…”
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Estimating the altitude of aerosol plumes over the ocean from reflectance ratio measurements in the O2 A-band by DUBUISSON, Philippe, FROUIN, Robert, DESSAILLY, David, DUFORET, Lucile, LEON, Jean-François, VOSS, Kenneth, ANTOINE, David

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Mineral dust sources in the surroundings of the north Indian Ocean by Leon, J-F, Legrand, M

“…We have used one year (1999) of Meteosat observations to monitor the dust activity in the arid and semi‐arid areas surrounding the North Indian Ocean. The…”
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Mass concentration, optical depth and carbon composition of particulate matter in the major southern West African cities of Cotonou (Benin) and Abidjan (Côte d'Ivoire) by Djossou, Julien, Léon, Jean-François, Akpo, Aristide Barthélemy, Liousse, Cathy, Yoboué, Véronique, Bedou, Mouhamadou, Bodjrenou, Marleine, Chiron, Christelle, Galy-Lacaux, Corinne, Gardrat, Eric, Abbey, Marcellin, Keita, Sékou, Bahino, Julien, Touré N'Datchoh, Evelyne, Ossohou, Money, Awanou, Cossi Norbert

“…Air quality degradation is a major issue in the large conurbations on the shore of the Gulf of Guinea. We present for the first time PM2.5 time series…”
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Urban-Scale NO2 Prediction with Sensors Aboard Bicycles: A Comparison of Statistical Methods Using Synthetic Observations by Bertero, Christophe, Léon, Jean-François, Trédan, Gilles, Roy, Mathieu, Armengaud, Alexandre

“…Mobile devices for city-scale air quality monitoring is receiving increasing attention due to the advent of low-cost and miniaturized sensors. Mobility and…”
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Tracking Airborne Pollution with Environmental Magnetism in A Medium-Sized African City by Dawaï, Daouda, Macouin, Mélina, Rousse, Sonia, Léon, Jean-François, Gountié Dedzo, Merlin, Drigo, Loïc

“…As in other parts of the world, air pollution over West and Central Africa has major health and meteorological impacts. Air quality assessment and its possible…”
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Impact of sea breeze on vertical structure of aerosol optical properties in Dunkerque, France by Boyouk, Neda, Léon, Jean-François, Delbarre, Hervé, Augustin, Patrick, Fourmentin, Marc

“…During July 2008, we used an elastic backscattering LIDAR to monitor the aerosol vertical distribution at the coastal area of Dunkerque, France. Here we report…”
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PM2.5 Magnetic Properties in Relation to Urban Combustion Sources in Southern West Africa by Leite, Aruã da Silva, Léon, Jean-François, Macouin, Melina, Rousse, Sonia, Trindade, Ricardo Ivan Ferreira da, Proietti, Arnaud, Drigo, Loïc, Antonio, Paul Yves Jean, Akpo, Aristide Barthélémy, Yoboué, Véronique, Liousse, Cathy

“…The physico-chemical characteristics of particulate matter (PM) in African cities remain poorly known due to scarcity of observation networks. Magnetic…”
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Profiling of a Saharan dust outbreak based on a synergy between active and passive remote sensing by Leon, J-F, Tanre, D, Pelon, J, Kaufman, Y J, Haywood, J M, Chatenet, B

“…Spaceborne lidars will give a new view of the vertical distribution of atmospheric aerosols and clouds. CALIPSO will be launched in the fall of 2004 and will…”
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Aerosol optical properties of Western Mediterranean basin from multi-year AERONET data by Benkhalifa, Jamel, Léon, Jean François, Chaabane, Mabrouk

“…Aerosol optical properties including the total and coarse mode aerosol extinction optical depth (AODt and AODc respectively), Angstrom exponent (AE), size…”
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Pixelated sintering of α-Al2O3 by Cornu, Iñaki, Cheype, Maxime, Baudier-Pons, Marion, Léon, Jean-François, Couillaud, Samuel, Rossignol, Fabrice, Heintz, Jean-Marc

“…The sintering of α-alumina by a brand new and innovative technique, called pixelated sintering (PS), is here studied. Densification and grain growth by PS of…”
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PM2.5 surface concentrations in southern West African urban areas based on sun photometer and satellite observations by Léon, Jean-François, Aristide Barthélémy Akpo, Bedou, Mouhamadou, Djossou, Julien, Bodjrenou, Marleine, Yoboué, Véronique, Liousse, Cathy

“…Southern West Africa (SWA) is influenced by large numbers of aerosol particles of both anthropogenic and natural origins. Anthropogenic aerosol emissions are…”
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Aerosol vertical distribution, optical properties and dust transport in the Western Mediterranean basin (case study: Summer, 2012) by Benkhalifa, Jamel, Léon, Jean François, Chaabane, Mabrouk

“…In this paper, we have analyzed an intense dust event at the end of June 2012 crossing the western Mediterranean basin and reaching southern Europe. The…”
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Personal exposure to PM2.5 emitted from typical anthropogenic sources in southern West Africa: chemical characteristics and associated health risks by Xu, Hongmei, Léon, Jean-François, Liousse, Cathy, Guinot, Benjamin, Yoboué, Véronique, Aristide Barthélémy Akpo, Adon, Jacques, Ho, Kin Fai, Steven Sai Hang Ho, Li, Lijuan, Gardrat, Eric, Shen, Zhenxing, Cao, Junji

“…Urbanization is an issue that is strongly emerging in southern West Africa (sWA). There is a lack of full understanding on chemical compositions and personal…”
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Physico-chemical characterization of urban aerosols from specific combustion sources in West Africa at Abidjan in Côte d'Ivoire and Cotonou in Benin in the frame of the DACCIWA program by Adon, Aka Jacques, Liousse, Catherine, Doumbia, Elhadji Thierno, Baeza-Squiban, Armelle, Cachier, Hélène, Léon, Jean-Francois, Yoboué, Véronique, Akpo, Aristique Barthel, Galy-Lacaux, Corinne, Guinot, Benjamin, Zouiten, Cyril, Xu, Hongmei, Gardrat, Eric, Keita, Sekou

“…Urban air pollution in West Africa has yet to be well characterized. In the frame of DACCIWA (Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa)…”
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