Tancrède Leger

Research Statement

Motivated by the desire to better understand the cryosphere, my research specialises towards the analysis of ice-sheets’ response to past, current and future climate change. My current work focuses on reconstructing the late-Quaternary retreat pattern of the Greenland Ice Sheet and the European Alpine Ice Field. To do so, my research contributes to mapping and dating the footprints emplaced by these colossal ice masses on the modern landscape, and to conducting numerical ice-sheet model experiments to better understand their former dynamics. Such past reconstructions can prove useful to improve our understanding of the mechanisms controlling the evolution of the cryosphere, as well as to refine our projections of future cryospheric and environmental change.

Peer-reviewed publications:

2023

“A Greenland-wide empirical reconstruction of paleo ice-sheet retreat informed by ice extent markers: PaleoGrIS version 1.0 “
Authors:   Tancrède P. M. Leger,  Christopher D. Clark , Carla Huynh , Sharman Jones , Jeremy C. Ely , Sarah L. Bradley , Christiaan Diemont, Anna L. C. Hughes
Journal:  Climate of the Past, special issue: “Icy landscapes of the past (CP/ESSD/ESurf/TC inter-journal SI)”.  In review.
Open-access link to review:  https://doi.org/10.5194/cp-2023-60
Research Project:  PALGLAC (Postdoc research)       

” A cosmogenic nuclide-derived chronology of pre-Last Glacial Cycle glaciations during MIS 8 and MIS 6 in northern Patagonia “
Authors:   Tancrède P. M. Leger, Andrew S. Hein,  Ángel Rodés, Robert G. Bingham, Irene Schimmelpfennig, Derek Fabel, Pablo T. Gonzalez, ASTER Team
Journal:  Climate of the Past, published 01/2023
Open-access link to article:  https://doi.org/10.5194/cp-19-35-2023
 Research Project:  Ph.D. research

2021

 “Northeastern Patagonian glacier advances (43°S) reflect northward migration of the Southern Westerlies towards the end of the last glaciation “
 Authors: Tancrède P. M. Leger, Andrew S. Hein, Daniel Goldberg, Irene Schimmelpfennig, Maximillian S. Van Wyk de Vries, Robert G. Bingham,  ASTER Team
Journal: Frontiers in Earth Science, special issue in Cryospheric Sciences: “Glaciation and Climate Change in the Andean Cordillera”, published 11/2021  
Open-access link to article: https://doi.org/10.3389/feart.2021.751987 
Research Project:  Ph.D. research  

” Geomorphology and 10Be chronology of the Last Glacial Maximum and deglaciation in northeastern Patagonia, 43°S-71°W ”  
 Authors: Tancrède P. M. Leger, Andrew S. Hein, Robert G. Bingham,  Ángel Rodés, Derek Fabel, Rachel K. Smedley
Journal: Quaternary Science Reviews, published 10/2021  
Link to article: https://doi.org/10.1016/j.quascirev.2021.107194 
Open-access link to pre-print:  https://doi.org/10.13140/RG.2.2.36620.23680
Research Project:  Ph.D. research    

2020

“The glacial geomorphology of the Río Corcovado, Río Huemul and Lago Palena/General Vintter valleys, northeastern Patagonia (43°S, 71°W) ”  
Authors: Tancrède P. M. Leger, Andrew S. Hein, Robert G. Bingham, Mateo A. Martini, Rodrigo L. Soteres, Esteban A.   Sagredo, Oscar A. Martínez  
Journal: Journal of Maps, published 08/2020  
Open-access link to article:   https://doi.org/10.1080/17445647.2020.1794990 
Research Project:  Ph.D. research