nom_organisme nom_organisme nom_organisme nom_organisme

 

tiphe.jpg

Yannick DONNADIEU

tel.jpg 01.69.08.86.66
fax.png 01.69.08.77.16
email.gif

This page is no more updated, please go to my Personal web page here (all pdf files of my papers available):

https://sites.google.com/site/donnadieuclimate/

 

Fonction

Chargé de Recherche au CNRS

Sujets de recherche

Deep Time Modelling (i.e. DTM) group's research interests focus on understanding the processes which have controlled pre-Quaternary climates, environments, and surficial processes in Earth history. To decipher the causal factors, a variety of numerical model describing climatic processes (atmosphere, ocean and ice-sheet), carbon and oxygen geochemical cycles are used. One theme of DTM group’s research deals with the cold periods of the Earth that are characterised by a low frequency when compared to the mean state of the Earth climatic system. This research has led to renewed debate regarding the nature of the factors causing greenhouse gases decline with an emphasis on the snowball Earth events occurring during the Neoproterozoic (800-600 Myr ago). More recently, DTM group has become involved in an exciting area of research focused on the description of the nature of the links between environmental changes and evolutionary innovation through time. Periods of major transitions of Earth climate / atmospheric composition and biologic evolution have been selected. These periods go backward from the rapid drop of methane in Early Earth Atmosphere during the great oxidation event (2.4 Ga, i.e. Paleoproterozoic) to the Late Paleocene Thermal Maximum, an abrupt and extreme warming event that took place during the "greenhouse" climate of the latest Paleocene (55 Myr). The key scientific question, DTM group intends to address is: “Through modelling studies and comparison with available data, can we establish links between global environmental pressure resulting from such perturbation and biologic evolution?”

CV

 

2003-04           Contrat Post–Doctorale avec R.T. Pierrehumbert (Professeur, Dept. of Geophysical Sciences, U. Chicago)

 

2000-03          Thèse de doctorat de Paris 6. Dirigée par G. Ramstein, soutenue en Décembre 2003

 

1999-00           DEA. Université Bordeaux I

 

1997-99           Licence et Maitrise des Sciences de la Terre: Magistère des Sciences de la Terre, Ecole Normale Supérieure de Lyon

 

1994-97           DEUG A, mention Science Pour l’Ingénieur. Université Jean Monnet (Saint Etienne)

Publications scientifiques

 

Donnadieu Y, Lecroart P., Anschutz P. et P. Bertrand, Bias in the paleoceanographic time series: Tests with a numerical model of U, Corg, and Al burial, Paleoceanography, 17, 2002, doi:10.1029/2001PA000638.

 

Donnadieu Y., Ramstein G., Fluteau F., Besse J. et J.G. Meert, Is high obliquity a plausible cause for Neoproterozoic glaciations ?, Geophysical Research Letters, 29, 2002, doi:10.1029/2002GL015902.

 

Donnadieu Y., Fluteau F., Ramstein, G., Ritz C. et J. Besse, Is there a conflict between the Neoproterozoic glacial deposits and the snowball Earth model: an improved understanding with numerical modelings, Earth and Planetary Science Letters, 208, 101-112, 2003.

 

Goddéris Y., Donnadieu Y., Nédelec A., Dupré B., Dessert C., Grard A., Ramstein G. et L.M. François, The Sturtian « snowball » glaciation : fire and ice, Earth and Planetary Science Letters, 211, 1-12, 2003.

 

Donnadieu Y., Ramstein G., Fluteau F., Roche D. et A. Ganopolski, The impact of atmospheric and oceanic heat transports on the sea ice-albedo instability during the Neoproterozoic, Climate Dynamics, doi:10.1007/s00382-003-0378-5, 2004.

 

Donnadieu Y., Goddéris Y., Ramstein G. et F. Fluteau, Global tectonic setting and climate of the Late Neoproterozoic: a climate-geochemical coupled study, in Multidisciplinary Studies Exploring Extreme Proterozoic Environmental Conditions (éditeurs G. Jenkins, C. McKay, M. McMenamin et L. Sohl), Geophysical Monograph Series, 79-89, 2004.

 

Donnadieu Y., Goddéris Y., Ramstein G., Nedelec A. et J.G. Meert, A ‘snowball Earth’ climate triggered by continental break-up through changes in runoff, Nature, 418, 303-306, 2004.


Ramstein G., Donnadieu Y. et Y. Goddéris, Les glaciations du Protérozoïque, C.R. Géosciences, 336 (7-8): 639-646, 2004.

 

Ramstein G., Khodri M., Donnadieu Y., Fluteau F. et Y. Goddéris, Impact of the hydrological cycle on past climate changes: three illustrations at different time scales, C.R. Géosciences, 337 (1-2): 125-137, 2005.

 

E. Pucéat, Y. Donnadieu, G. Ramstein, F. Fluteau et F. Guillocheau, Numerical evidence for thermohaline circulation reversals during the Maastrichtian, G-cubed, 6: Art. No. Q11012, 2005.

 

D. Roche, Y. Donnadieu, D. Paillard et E. Pucéat, On the effect of changes in d18O content of the surface ocean on the SST’s evaluation in warm climates, Paleoceanography, 21 (2): Art. No. PA2023, 2006.

 

Y. Donnadieu, R. Pierrehumbert, R. Jacob and F. Fluteau, Modelling the primary control of paleogeography on Cretaceous climate, Earth And Planetary Science Letters, 248, 426-437, 2006.

 

Y. Donnadieu, Y. Goddéris, R. Pierrehumbert, F. Fluteau et G. Dromart, Pangea break up and Mesozoic climatic evolution simulated by the GEOCLIM model, G-cubed, 7, Q11019, doi:10.1029/2006GC001278, 2006.

 

Pucéat E., Lécuyer C., Donnadieu Y., Naveau P., Cappetta H., Ramstein G., Huber BT. Et J. Kriwet, Fish tooth d18O revising Late Cretaceous meridional upper ocean water temperature gradients, Geology, 35, 107-110, 2007.

 

Goddéris Y., Donnadieu Y., Dessert C., Dupré B., Fluteau F., François LM., Meert J., Nédélec A. and G. Ramstein, Coupled modeling of global carbon cycle and climate in the Neoproterozoic: links between Rodinia break-up and major glaciations, C.R. Géosciences, 339 (3-4): 212-222, 2007.

 

Le Hir G., Ramstein G., Donnadieu Y. and Pierrehumbert RT., Investigating plausible mechanisms to trigger a degaciation from a hard snowball Earth, C.R. Géosciences, 339 (3-4): 274-287, 2007.

 

Y. Goddéris, Y. Donnadieu, C. De Vargas, R. Pierrehumbert, G. Dromart and B. van de Schootbrugge, Causal or casual link between the rise of nannoplankton calcification and the tectonically-driven massive decrease in Late Triassic atmospheric CO2, Earth And Planetary Science Letters, 267, 247-255, 2008.

 

G. Le Hir, Y. Goddéris, G. Ramstein and Y. Donnadieu, New scenario for the evolution of atmospheric pCO2 during a Snowball Earth, Geology, 36, 47-50, 2008.

 

G. Le Hir, Y. Goddéris, Y. Donnadieu and G. Ramstein, A geochemical modelling study of the evolution of the chemical composition of seawater linked to a “snowball” glaciation, Biogeosciences, 5, 253-267, 2008.

 

Y. Goddéris, Y. Donnadieu, M. Tombozafi and C. Dessert, Shield effect on continental weathering: implication for climatic evolution of the Earth at the geological timescale, Geoderma, in press, 2008

 

Enseignement

 

Divers

 

 

Godderis14ESR.pdf

Retour en haut