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Academic literature on the topic 'Carottes de glace – Groenland'
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Journal articles on the topic "Carottes de glace – Groenland"
Parrenin, Frédéric, Lucie Bazin, Émilie Capron, Amaëlle Landais, Bénédicte Lemieux‑Dudon, and Valérie Masson‑Delmotte. "Icechrono1 : un modèle probabiliste pour calculer une chronologie commune et optimale pour plusieurs carottes de glace." Quaternaire, no. 28/2 (May 29, 2017): 179–84. http://dx.doi.org/10.4000/quaternaire.8121.
Full textRichard, Pierre J. H., Alayn Larouche, and Michel A. Bouchard. "Âge de la déglaciation finale et histoire postglaciaire de la végétation dans la partie centrale du Nouveau-Québec." Géographie physique et Quaternaire 36, no. 1-2 (November 29, 2007): 63–90. http://dx.doi.org/10.7202/032470ar.
Full textParrenin, Frédéric, and Amaëlle Landais. "La datation des archives glaciaires." La Météorologie, no. 110 (2020): 018. http://dx.doi.org/10.37053/lameteorologie-2020-0070.
Full textLandais, Amaëlle. "Reconstruction du climat et de l’environnement des derniers 800 000 ans à partir des carottes de glace – variabilité orbitale et millénaire." Quaternaire, Vol. 27/3 (September 1, 2016): 197–212. http://dx.doi.org/10.4000/quaternaire.7664.
Full textHarington, C. R., and Serge Occhietti. "Inventaire systématique et paléoécologie des mammifères marins de la Mer de Champlain (fin du Wisconsinien) et de ses voies d’accès." Géographie physique et Quaternaire 42, no. 1 (December 18, 2007): 45–64. http://dx.doi.org/10.7202/032708ar.
Full textDissertations / Theses on the topic "Carottes de glace – Groenland"
Lemieux-Dudon, Bénédicte. "Conjonction de données et de modèles pour la datation des forages profonds d'Antarctique et du Groenland." Grenoble 1, 2009. http://www.theses.fr/2009GRE10067.
Full textWe are hereby presenting a new dating method based on inverse techniques, which aims at calculating consistent gas and ice chronologies for several ice cores. The proposed method yields new dating scenarios simultaneously for several cores by making a compromise between the chronological information brought by glaciological modeling (i. E. , ice flow model, firn densification model, accumulation rate model), and by gas and ice stratigraphic constraints. This method enables us to gather widespread chronological information and to use regional or global markers (i. E. , methane, volcanic sulfate, Beryllium- 10, tephra layers, etc. ) to link the core chronologies stratigraphically. Confidence intervals of the new dating scenarios can be calculated thanks to the probabilistic formulation of the new method, which takes into account both modeling and data uncertainties. We apply this method simultaneously to one Greenland (NGRIP) and three Antarctic (EPICA Dome C, EPICA Dronning Maud Land, and Vostok) ices cores, and refine existent chronologies. Our results show that consistent ice and gas chronologies can be derived for depth intervals that are well-constrained by relevant glaciological data. In particular, we propose new and consistent dating of the last deglaciation for Greenland and Antarctic ice and gas records
Landais, Amaëlle. "Variabilité climatique rapide en atlantique nord : l'apport des isotopes de l'air piégé dans la glace du Groenland." Paris 6, 2004. https://tel.archives-ouvertes.fr/tel-00007403.
Full textLANDAIS, AMAELLE. "VARIABILITÉ CLIMATIQUE RAPIDE EN ATLANTIQUE NORD : L'APPORT DES ISOTOPES DE L'AIR PIÉGÉ DANS LA GLACE DU GROENLAND." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2004. http://tel.archives-ouvertes.fr/tel-00007403.
Full textKrinner, Gerhard. "Simulations du climat des calottes de glace." Phd thesis, Université Joseph Fourier (Grenoble), 1997. http://tel.archives-ouvertes.fr/tel-00716408.
Full textBazin, Lucie. "Analyse de l’air piégé dans les carottes de glace de Dôme C et Talos Dôme pour mieux contraindre le rôle du forçage orbital et des gaz à effet de serre dans les variations glaciaire-interglaciaire." Thesis, Versailles-St Quentin en Yvelines, 2015. http://www.theses.fr/2015VERS013V/document.
Full textIn order to study the climate variations recorded by ice cores, it is necessary to have precise chronologies for the ice and gas phases. The aim of this work has been to improve ice cores chronologies, covering the last 800 000 years, through new measurements of the isotopic composition of the air δ15N, δ18Oatm et δO2/N2) trapped in EPICA Dome C (EDC) ice core and the use of the Datice dating tool.The first important result of this PhD has been the production of the Antarctic Ice Core Chronology (AICC2012), common for EDC, Vostok, EPICA Droning Maud Land (EDML), TALos Dome ICE core (TALDICE) and NorthGRIP ice cores. The bipolar see-saw theory is still valid on the new chronology. The AICC2012 chronology gives an age for Termination II in good agreement with other climate archives. Moreover, the duration of interglacial periods is unchanged compared to EDC3. While building the AICC2012 chronology, we have pointed out several limitations. Since then, we have improved Datice in order to correctly integrate constraints deduced from layer counting and their associated uncertainties. These improvements permit to build coherent chronologies respecting the underlying hypotheses of Datice. Moreover, we propose a new parameterization of the uncertainty associated with the background thinning function based on ice mechanical properties of EDC ice core. Finally, we were able to deduce new age constraints thanks to the new measurements of δO2/N2 and δ18Oatm performed on well-conserved ice from EDC. A multi-proxy comparison of Vostok, EDC and Dome F ice cores over MIS 5 has highlighted a possible influence of local climatic parameters on δO2/N2. The analysis of the delay between δ18Oatm and precession shows some variability over the last 800 ka. We propose that the delay between δ18Oatm and precession is increased during periods associated with Heinrich events. The results obtained during this PhD should be used for the next ice core coherent chronology
Capron, Emilie. "L'air piégé dans les glaces polaires : contraintes chronologiques et caractérisation de la variabilité climatique rapide." Phd thesis, Université de Versailles-Saint Quentin en Yvelines, 2010. http://tel.archives-ouvertes.fr/tel-00579600.
Full textSavarino, Joël. "Chimie de la carotte EUROCORE (Groenland Central) : variabilité des émissions biologiques au cours du dernier millénaire." Université Joseph Fourier (Grenoble), 1996. http://www.theses.fr/1996GRE10050.
Full textGerme, Agathe. "Variabilité de la glace de mer en mer du Groenland : liens avec les forçages atmosphériques et océaniques à l'échelle interannuelle." Paris 6, 2010. http://www.theses.fr/2010PA066629.
Full textHoussais, Marie-Noëlle. "Modelisation des interactions ocean-glace : application a la mer du groenland." Paris 6, 1987. http://www.theses.fr/1987PA066173.
Full textGUERINOT, GENEVIEVE. "Modelisation du vieillissement chimique de panaches de feux boreaux." Université Joseph Fourier (Grenoble), 2000. http://www.theses.fr/2000GRE10068.
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