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6 results on '"Boust, D."'

1. Evolution pluriannuelle du pompage tidal dans l’estuaire fluvial de la Seine par l’analyse de radionucléides artificiels dans des carottes sédimentaires

Author

Vrel, A., Boust, D., Lesueur, P., Cossonnet, C., Deloffre, Julien, Dubrulle-Brunaud, Carole, Massei, Nicolas, Rozet, M., Solier, L., Morphodynamique Continentale et Côtière (M2C), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Radioécologie de Cherbourg-Octeville (LRC), and Institut de Radioprotection et de Sûreté Nucléaire (IRSN)

Subjects
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [SDE.MCG]Environmental Sciences/Global Changes, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy
Abstract

National audience

Published
2011

2. Pénétration de particules fines d'origine marine dans trois petits fleuves (Normandie, France) : rôle du pompage tidal

Author

Dubrulle-Brunaud, Carole, Lesueur, P., Boust, D., Lafite, R., Dugué, Olivier, Poupinet, N., Servant, C., Morphodynamique Continentale et Côtière (M2C), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU), Laboratoire de Radioécologie de Cherbourg-Octeville (LRC), Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Morphodynamique Continentale et Côtière ( M2C ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Rouen Normandie ( UNIROUEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ), and Laboratoire de Radioécologie de Cherbourg-Octeville (LRC), IRSN, 50130 Cherbourg-Octeville, France

Subjects
[ SDE.MCG ] Environmental Sciences/Global Changes, [ SDU.STU.OC ] Sciences of the Universe [physics]/Earth Sciences/Oceanography, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [SDE.MCG]Environmental Sciences/Global Changes, [ SDU.ENVI ] Sciences of the Universe [physics]/Continental interfaces, environment, [ SDU.STU.GC ] Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [ SDU.STU.MI ] Sciences of the Universe [physics]/Earth Sciences/Mineralogy, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, ComputingMilieux_MISCELLANEOUS, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy
Abstract

National audience

Published
2007

3. Caractérisation des envasements en domaine estuarien : l’exemple de l’estuaire de la Seine (Normandie, France)

Author

Dubrulle-Brunaud, Carole, Lesueur, P., Boust, D., Lafite, R., Poupinet, N., Dugué, Olivier, Morphodynamique Continentale et Côtière ( M2C ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Rouen Normandie ( UNIROUEN ), Normandie Université ( NU ) -Normandie Université ( NU ) -Institut national des sciences de l'Univers ( INSU - CNRS ) -Université de Caen Normandie ( UNICAEN ), Normandie Université ( NU ), Laboratoire de Radioécologie de Cherbourg-Octeville (LRC), IRSN, 50130 Cherbourg-Octeville, France, Morphodynamique Continentale et Côtière (M2C), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU), Laboratoire de Radioécologie de Cherbourg-Octeville (LRC), and Institut de Radioprotection et de Sûreté Nucléaire (IRSN)

Subjects
[ SDE.MCG ] Environmental Sciences/Global Changes, [ SDU.STU.OC ] Sciences of the Universe [physics]/Earth Sciences/Oceanography, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [SDE.MCG]Environmental Sciences/Global Changes, [ SDU.ENVI ] Sciences of the Universe [physics]/Continental interfaces, environment, [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces, environment, [ SDU.STU.GC ] Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [ SDU.STU.MI ] Sciences of the Universe [physics]/Earth Sciences/Mineralogy, [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography, ComputingMilieux_MISCELLANEOUS, [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy
Abstract

National audience

Published
2005

4. Analyse et prédiction de la dispersion des radioéléments dans l'environnement marin par la méthode de la réponse impulsionnelle

Author

Boust, D, Hairie, A, Fraizier, A, and Baron, Y

Abstract

This work presents analysis and prediction of the dispersion of radioelements in the marine environment based on the pulse response theory. The analysis is made on three data sets over the period 1984-1988 : the amounts of gamma-emitting radioelements contained in controlled releases from the nuclear reprocessing plant of La Hague (=signal emission point), and gamma-emitting radionuclide concentrations in sea water at two stations (=signal reception points), situated at 8 and 35 km distance from the release point. Using this data base, the pulse response is determined for each station and for each element. This allows us to estimate the mean delay and the amplitude of the reception signal (i.e. the concentrations of radioelements) and its sensitivity to wind forcing. We then demonstrate that the convolution of the pulse response and released radionuclide time-series is capable of yielding a fairly good prediction of the concentrations at each station. Some particularities of the behaviour of Cs-137, Ru-106 and Co-60 are evidenced by comparison with that of Sb-125, assumed to be a conservative element in sea water: adsorption of Ru-106 and Co-60 on to particles, additional sources of Cs-137. The mean delays calculated for Sb-125 at each station are close to each other (28-30 days) despite their different distances from the release point, and are explained by the specific hydrodynamics of the studied area.

Published
1995

5. Etude du comportement geochimique du fer dans l'estuaire de la Seine

Author

Guegueniat, P, Boust, D, Gandon, R, Hemon, G, Phillipot, J, Sanchez, J, Marin, P, and Pieri, J

Subjects
Sediments, Geochemical cycle, Iron, Ion association, Suspended particulate matter, River discharge
Abstract

This paper reports the study of iron geochemical behavior by the measurement of total iron, iron associated with mineral coat, and ratio FEII/FEIII. The results of total iron are exploited by normalisation with regard to aluminium and scandium.

Published
1985

6. Distribution de 40 elements a l'etat de traces dans les suspensions de la Seine. Utilisation du lanthane pour etudier les processus sedimentaires dans l'estuaire et dans la baie

Author

Guegueniat, P, Boust, D, Hemon, G, Phillipot, J, Lagarde, G, and Heitz, C

Subjects
Estuarine dynamics, Trace elements, Sediment dynamics, Suspended particulate matter, Sediment chemistry, Geographical distribution, River discharge
Abstract

This work has three objectives in view: (1) the establishment of spatial distribution of 40 trace elements in suspensions and sediments of the Seine estuary and bay; (2) the research of non-reactive geochemical tracers of fluvial deposits; and (3) the illustration of sediment dynamics influence on distribution of elements during the particulate period.

Published
1985

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