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DRF: Thesis subject SL-DRF-21-0822

RESEARCH FIELD
Climate modelling / Earth and environmental sciences
TITLE English Français

A numerical approach to understanding rates of ice sheet build-up during the Quaternary

ABSTRACT

Past sea-level markers evidence episods of rapid sea-level drop of several meters in less than 1,000 years. Such glaciation speeds are not well understood and numerical models tend to under estimate them. Within this project, we will develop an ensemble of numerical methodologies and models in order to better reperesent the interactions between polar ice-sheets and climate in the view of understanding the speed of past sea-level drops. In order to do so, we will use a multi model approach to improve the simulation of the snow cover. In particular, we will use an innovatice Deep Learning method to create a snow model emulator with little computing cost. The ensemble of snow models developped will be included in a coupled climate model to study the mechanisms at play during sea-level drop over the Quaternary (last 2.6 Ma).

LOCATION
Laboratoire des Sciences du Climat et de l’Environnement
Modélisation du CLIMat
Place: Saclay
Start date of the thesis: 01/10/2021
CONTACT PERSON

Christophe Dumas  

CEA
DRF/LSCE (DSM)//CLIM
CE-Saclay, Orme des Merisiers. Bat 701, 91191 gif-sur-Yvette cedex

Phone number: +33 1 69 08 65 81

UNIVERSITY / GRADUATE SCHOOL
Versailles-St-Quentin-en-Yvelines
Sciences de l’Environnement d’Île de France
THESIS SUPERVISOR

Didier Roche

CNRS
DSM/LSCE//CLIM
Laboratoire des Sciences du Climat et de l’Environnement
Centre d’Etudes de Saclay, Orme des Merisiers
91190 Gif s/s Yvette CEDEX