Mr Tancrede Leger (PHD student)

PHD in Atmospheric and Environmental science

Year of study: 1

  • School of Geosciences
  • Cryosphere research group
  • Global Change

Contact details

Address

Street

3-11 Craigend Park

City
Edinburgh
Post code
EH16 5XY
Street

31 Rue de la Pelleterie

City
Nantes
Post code
44000

Qualifications

Graduate from the University of Glasgow with a frist class Bsc degree in Geography 

Responsibilities & affiliations

Tutor and practical demonstrator 

Undergraduate teaching

- Practical Demonstrator on the EASC09056 Global Environmental Change-Foundations course

Research summary

My strong desire to better understand the cryosphere and its past, current and future evolution has driven my study interests to progressively specialise towards glacial and paraglacial environment responses to changing climates. I am therefore interested in analysing glacier's and ice sheets past, current and future response to fluctuations in atmospheric and meteorological conditions. I find fascinating the reconstruction of past glacial bahaviour as a proxy for past climate variation at both fine and coarse geographcial scales.  Such study is also useful in bettering our prediction of future variations in cryospheric behaviour as a response to the ongoing uncertain change in the global climate enhanced by anthropogenic activity. 

Current research interests

My current research focuses on reconstructing the Quaternary landscape evolution of the once heavily glaciated southernmost south American region of Patagonia, using the technique of cosmogenic radionuclide dating of well preserved deposits. My PhD study is an effort to reconstruct, for the first time, the glacial geomorphology and geochronology in a valley of northern Patagonia previously occupied by the the Rio Huemul and Rio Corcovado (43°S, 71°W) outlet glaciers. This geochronological reconstruction will also provide an understanding of the past evolution of drainage systems in those valleys throughout the last deglaciation, and of the magnitude and timing of past local climate variations. By comparing our findings with results from other palaeoclimate studies, this research aims at improving our understanding of atmospheric systems and energy re-distribution mechanisms responsible for climate variability in northern Patagonia. Such palaeoclimatic information is vital to parameterize climate models and better assess the significance of current and predicted global environmental change in the southern mid-latitudes.

Past research interests

My honours dissertation research aimed to assess the roles of glacial debuttressing and interstitial ice degradation in generating bedrockslope instability near the terminus of the Tré-La-Tête glacier (Mont Blanc Massif, French Alps). An important component of this study was to reconstruct the recent mass balance history of the glacier since 1942 combining literature analyses, remote sensing (Landsat NSDI, Sentinel 2A, Aster data) and fieldwork. Field investigations were conducted in July 2017 to assess glacial characteristics such as debris-covered tongue areal extent, snowlines geographic situation and recently deglaciated bedrock slope stability using quantitative and qualitative techniques

Current project grants

2018 NERC- University of Edinburgh Geoscience E3 DTP PhD Sponsorship.

Conference details

-SAGES ASM 2018: Dunblane 

-INQUA 2019: Dublin. Poster Presentation