Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Robert J., Delmas"'
Publikováno v:
SIL Proceedings, 1922-2010. 29:594-600
Autor:
Jean-Robert Petit, Hans-Arno Synal, Juerg Beer, Raimund Muscheler, M Pourchet, Robert J. Delmas
Publikováno v:
Tellus B. 56:492-498
A large pulse of atmospheric 36 Cl generated by a limited number of nuclear tests peaked in the late 1950s to early 1960s. The corresponding enhanced 36 Cl deposition is seen in various glaciological archives in the Northern Hemisphere. The profile o
Publikováno v:
Climatic Change. 67:63-86
Three ice cores and a set of snow pit samples collected on James Ross Island, Antarctic Peninsula, in 1979, 1981 and 1991 have been analyzed for water stable isotope content δD or δ18O (isotopic temperature) and major chemical species. A reliable a
Autor:
Robert J., Delmas, Martine, De Angelis, Yoshiyuki, Fujii, Kumiko, Goto-Azuma, Kokichi, Kamiyama, Jean-Robert, Petit, Okitsugu, Watanabe
Publikováno v:
Memoirs of National Institute of Polar Research. Special issue. 57:105-120
Deep Antarctic ice cores document the former states of the climatic system, the atmosphere, and the marine and terrestrial biospheres. However, questions do remain in the interpretation and the reliability of ice core chemical profiles in terms of at
Publikováno v:
Tellus B; Vol 55, No 1 (2003)
We have examined several MSA (methanesulfonic acid) records from the upper 200 m of the Antarcticice sheet and in particular the new Dome F profile. At all the four sites studied, concentration profilesexhibit similar patterns as a function of depth.
Publikováno v:
Atmospheric Environment. 36:765-772
The fractionation of atmospheric sea-salt has been investigated by glaciochemical analysis of the sea-salt deposited on the snow covering the small ice cap of James Ross Island, Antarctic Peninsula, at an elevation of 1640 m. The data show that, gene
Publikováno v:
Global Biogeochemical Cycles. 15:993-1003
Greenhouse gas (GHG) emissions of CH4 and CO2, resulting from decomposition of flooded organic matter from the hydroelectric reservoir of Petit Saut in the tropical rain forest of French Guiana have been monitored since reservoir impoundment in Janua
Autor:
Patrick Trocellier, Robert J. Delmas
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 181:408-412
Zircon (ZrSiO4) exhibits a strong structural affinity for uranium and thorium together with a very high chemical durability. This makes it a potential crystalline host matrix to immobilize actinides issued from separation of nuclear wastes. Irradiati
Autor:
Claude F. Boutron, Robert J. Delmas, Christophe Ferrari, Tania Bellomi, Gabriele Capodaglio, Paolo Cescon, Carlo Barbante, Katja Van de Velde, Ann-Laure Moreau
Publikováno v:
Geophysical Research Letters. 27:249-252
Cd, Cu and Zn have been measured using ultraclean procedures in snow and ice deposited at a high altitude location in the French/Italian Alps during the past two centuries. These data provide the first time series of changes in the occurrence of heav
Autor:
Aimé Druilhet, W. Baugh, Alex Guenther, Robert J. Delmas, Paul Ginoux, Jim Greenberg, Claire Delon, Sasha Madronich
Publikováno v:
Journal of Geophysical Research: Atmospheres. 104:30659-30671
The recent aircraft and ground-based Experiment for the Regional Sources and Sinks of Oxidants (EXPRESSO) campaign in central Africa studied atmospheric trace gases and aerosols during the biomass burning season. Isoprene, emitted from vegetation, wa