Search Results - "DELMAS, R"

Influence of altitude on ozone levels and variability in the lower troposphere: a ground-based study for western Europe over the period 2001–2004 by Chevalier, A., Gheusi, F., Delmas, R., Ordóñez, C., Sarrat, C., Zbinden, R., Thouret, V., Athier, G., Cousin, J.-M.

“…The PAES (French acronym for synoptic scale atmospheric pollution) network focuses on the chemical composition (ozone, CO, NOx/y and aerosols) of the lower…”
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Numerical simulations of local circulations and pollution transport over Reunion Island by LESOUËF, D, GHEUSI, F, DELMAS, R, ESCOBAR, J

“…A series of high-resolution (1 km) numerical simulations with a limited-area numerical model has been performed over Reunion Island. In the dynamical context…”
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Geographic provenance of aeolian dust in East Antarctica during Pleistocene glaciations: preliminary results from Talos Dome and comparison with East Antarctic and new Andean ice core data by Delmonte, B., Andersson, P.S., Schöberg, H., Hansson, M., Petit, J.R., Delmas, R., Gaiero, D.M., Maggi, V., Frezzotti, M.

“…The strontium and neodymium isotopic signature of aeolian mineral particles archived in polar ice cores provides constraints on the geographic provenance of…”
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Analysis of the origin of the distribution of CO in the subtropical southern Indian Ocean in 2007 by Duflot, V., Dils, B., Baray, J. L., De Mazière, M., Attié, J. L., Vanhaelewyn, G., Senten, C., Vigouroux, C., Clain, G., Delmas, R.

“…We show carbon monoxide (CO) distributions at different vertical levels over the subtropical southern Indian Ocean, analyzing an observation campaign using…”
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Low Tropospheric Layers Over Reunion Island in Lidar-Derived Observations and a High-Resolution Model by Lesouëf, D., Gheusi, F., Chazette, P., Delmas, R., Sanak, J.

“…In November and December 2008, ground-based mobile lidar (GBML) measurements were carried out on Reunion Island (Indian Ocean, 21 ∘ 07 ′ S , 55 ∘ 32 ′ E , 700…”
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Loss of volatile acid species from upper firn layers at Vostok, Antarctica by Wagnon, P., Delmas, R. J., Legrand, M.

“…Significant natural artifacts in ice chemical records have been pointed out in recent preliminary glaciochemical studies carried out in central Antarctic areas…”
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East Antarctic ice core sulfur isotope measurements over a complete glacial-interglacial cycle by Alexander, B., Thiemens, M. H., Farquhar, J., Kaufman, A. J., Savarino, J., Delmas, R. J.

“…Both sulfur and oxygen isotopes of sulfate preserved in ice cores from Greenland and Antarctica have provided information on the relative sources of sulfate in…”
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Tropospheric ozone climatology at two Southern Hemisphere tropical/subtropical sites, (Reunion Island and Irene, South Africa) from ozonesondes, LIDAR, and in situ aircraft measurements by Clain, G., Baray, J. L., Delmas, R., Diab, R., Leclair de Bellevue, J., Keckhut, P., Posny, F., Metzger, J. M., Cammas, J. P.

“…This paper presents a climatology and trends of tropospheric ozone in the Southwestern Indian Ocean (Reunion Island) and South Africa (Irene and Johannesburg)…”
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Climate driven changes in the oxidation pathways of atmospheric sulfur by Alexander, B., Savarino, J., Barkov, N. I., Delmas, R. J., Thiemens, M. H.

“…Ice cores have provided a wealth of information about past atmospheric composition and climate variability. However, relatively little is known about how the…”
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Marine and biomass burning aerosols in the southern Indian Ocean: Retrieval of aerosol optical properties from shipborne lidar and Sun photometer measurements by Duflot, V., Royer, P., Chazette, P., Baray, J.-L., Courcoux, Y., Delmas, R.

“…We document aerosol extinction properties in the southern Indian Ocean. A unique data set of shipborne measurements has been collected with a dual Rayleigh‐Mie…”
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Coherent isotope history of Andean ice cores over the last century by Hoffmann, G., Ramirez, E., Taupin, J. D., Francou, B., Ribstein, P., Delmas, R., Dürr, H., Gallaire, R., Simões, J., Schotterer, U., Stievenard, M., Werner, M.

“…Isotope records from Andean ice cores provide detailed and high‐resolution climate information on various time scales. However, the relationship between these…”
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A lagrangian approach to analyse the tropospheric ozone climatology in the tropics: Climatology of stratosphere–troposphere exchange at Reunion Island by Clain, G., Baray, J.-L., Delmas, R., Keckhut, P., Cammas, J.-P.

“…Sixteen years of ozone measurements (1992–2006) at Reunion Island (21°S, 55.5°E) have been processed to detect stratospheric signatures on each single ozone…”
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Heavy Metals Pollution of the Atlantic Marine Environment by the Moroccan Phosphate Industry, as Observed through their Bioaccumulation in Ulva Lactuca by Gaudry, A, Zeroual, S, Gaie-Levrel, F, Moskura, M, Boujrhal, F-Z, El Moursli, RCherkaoui, Guessous, A, Mouradi, A, Givernaud, T, Delmas, R

“…The Moroccan phosphate industry releases large amounts of heavy metals in the Atlantic Ocean in the surroundings of two places: Safi and Jorf Lasfar. The major…”
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Pic 2005, a field campaign to investigate low-tropospheric ozone variability in the Pyrenees by Gheusi, F., Ravetta, F., Delbarre, H., Tsamalis, C., Chevalier-Rosso, A., Leroy, C., Augustin, P., Delmas, R., Ancellet, G., Athier, G., Bouchou, P., Campistron, B., Cousin, J.-M., Fourmentin, M., Meyerfeld, Y.

“…The Pic 2005 field campaign took place from 13 June to 7 July 2005 close to the high-altitude permanent atmospheric observatory Pic-du-Midi (PDM), situated at…”
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The Ice Record of Greenhouse Gases by Raynaud, D., Jouzel, J., Barnola, J. M., Chappellaz, J., Delmas, R. J., Lorius, C.

“…Gases trapped in polar ice provide our most direct record of the changes in greenhouse gas levels during the past 150,000 years. The best documented trace-gas…”
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Technical Note: New ground-based FTIR measurements at Ile de La Réunion: observations, error analysis, and comparisons with independent data by Senten, C., De Mazière, M., Dils, B., Hermans, C., Kruglanski, M., Neefs, E., Scolas, F., Vandaele, A. C., Vanhaelewyn, G., Vigouroux, C., Carleer, M., Coheur, P. F., Fally, S., Barret, B., Baray, J. L., Delmas, R., Leveau, J., Metzger, J. M., Mahieu, E., Boone, C., Walker, K. A., Bernath, P. F., Strong, K.

“…Ground-based high spectral resolution Fourier-transform infrared (FTIR) solar absorption spectroscopy is a powerful remote sensing technique to obtain…”
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Comment on “Dust provenance in Antarctic ice during glacial periods: From where in southern South America?” by D. M. Gaiero by Delmonte, B., Delmas, R. J., Petit, J.-R.

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Global inventory of NOx sources by Delmas, R, Serça, D, Jambert, C

“…Nitrogen oxides are key compounds for the oxidation capacity of the troposphere. NOx concentrations depend on the proximity of sources because of their short…”
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Multielement analysis of concrete from nuclear reactors by INAA, ICP-MS and ICP-AES by Gaudry, A., Delmas, R.

“…There is a need to know, before dismantling nuclear plants, how the induced radioactivity is distributed in concrete. Computer codes are used to predict such a…”
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Isotopic signatures of sulfur in shallow Antarctic ice cores by Patris, Nicolas, Delmas, Robert J., Jouzel, Jean

“…Sulfur stable isotopes from Antarctic snow samples have been used to assess sources of sulfate. The novel experimental procedure presented here is suitable for…”
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