Sébastien Le Clec'h

Sébastien Le Clec'h
Vrije Universiteit Brussel | VUB · Department of Geography - Ice and Climate

PhD

About

22
Publications
3,893
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
387
Citations
Additional affiliations
April 2018 - present
Vrije Universiteit Brussel
Position
  • PostDoc Position
Description
  • Interactive coupling between a regional climate model and a 3D thermomechanical higher-order ice-sheet model to produce improved projections of the Greenland ice sheet to future climate warming and its contribution to global sea-level change up to 2300.
April 2016 - May 2016
ENSTA ParisTech
Position
  • Research Assistant
Description
  • Introduction to the dynamical concepts of climate changes for engineering schools student
February 2016 - May 2017
Université Paris-Saclay
Position
  • Research Assistant
Description
  • Introduction to Linux/bash environment and to ferret for master degree’s student.
Education
September 2013 - January 2018
Université Paris-Saclay
Field of study
  • Greenland ice sheet modeling and study of its sensitivity under past, present and futur climate.
September 2012 - June 2013
Aix-Marseille Université
Field of study
  • Climate Science and modeling
September 2010 - June 2012
Aix-Marseille Université
Field of study
  • Sea and environment science

Publications

Publications (22)
Article
Full-text available
We introduce PARASO, a novel five-component fully coupled regional climate model over an Antarctic circumpolar domain covering the full Southern Ocean. The state-of-the-art models used are the fast Elementary Thermomechanical Ice Sheet model (f.ETISh) v1.7 (ice sheet), the Nucleus for European Modelling of the Ocean (NEMO) v3.6 (ocean), the Louvain...
Preprint
Full-text available
We introduce PARASO, a novel five-component fully-coupled regional climate model over an Antarctic circumpolar domain covering the full Southern Ocean. The state-of-the-art models used are f.ETISh1.7 (ice sheet), NEMO3.6 (ocean), LIM3.6 (sea ice), COSMO5.0 (atmosphere) and CLM4.5 (land), which are here run at an horizontal resolution close to 1/4°....
Article
Full-text available
Projections of the sea level contribution from the Greenland and Antarctic ice sheets (GrIS and AIS) rely on atmospheric and oceanic drivers obtained from climate models. The Earth System Models participating in the Coupled Model Intercomparison Project phase 6 (CMIP6) generally project greater future warming compared with the previous Coupled Mode...
Article
Projections of the sea level contribution from the Greenland and Antarctic ice sheets (GrIS and AIS) rely on atmospheric and oceanic drivers obtained from climate models. The Earth System Models participating in the Coupled Model Intercomparison Project phase 6 (CMIP6) generally project greater future warming compared with the previous Coupled Mode...
Article
Full-text available
The land ice contribution to global mean sea level rise has not yet been predicted¹ using ice sheet and glacier models for the latest set of socio-economic scenarios, nor using coordinated exploration of uncertainties arising from the various computer models involved. Two recent international projects generated a large suite of projections using mu...
Preprint
Full-text available
Abstract. The Greenland ice sheet is one of the largest contributors to global-mean sea-level rise today and is expected to continue to lose mass as the Arctic continues to warm. The two predominant mass loss mechanisms are increased surface meltwater runoff and mass loss associated with the retreat of marine-terminating outlet glaciers. In this pa...
Article
Full-text available
The Greenland ice sheet contributes increasingly to global sea level rise. Its history during past warm intervals is a valuable reference for future sea level projections. We present ice sheet simulations for the Eemian interglacial period (∼130 000 to 115 000 years ago), a period with warmer-than-present summer climate over Greenland. The evolutio...
Article
Full-text available
Providing reliable projections of the ice sheet contribution to future sea-level rise has become one of the main challenges of the ice sheet modelling community. To increase confidence in future projections, a good knowledge of the present-day state of ice flow dynamics, which is critically dependent on basal conditions, is strongly needed. The mai...
Article
Full-text available
In the context of global warming, growing attention is paid to the evolution of the Greenland ice sheet (GrIS) and its contribution to sea-level rise at the centennial timescale. Atmosphere–GrIS interactions, such as the temperature–elevation and the albedo feedbacks, have the potential to modify the surface energy balance and thus to impact the Gr...
Article
Full-text available
Understanding the behavior of the Greenland ice sheet in a warmer climate, and particularly its surface mass balance (SMB), is important for assessing Greenland's potential contribution to future sea level rise. The Eemian interglacial period, the most recent warmer-than-present period in Earth's history approximately 125000 years ago, provides an...
Article
Full-text available
Understanding the behavior of the Greenland ice sheet in a warmer climate, and particularly its surface mass balance (SMB), is important for assessing Greenland’s potential contribution to future sea level rise. The Eemian interglacial, the most recent warmer-than-present period in Earth’s history approximately 125000 years ago, provides an analogu...
Article
Full-text available
Earlier large-scale Greenland ice sheet sea-level projections (e.g. those run during the ice2sea and SeaRISE initiatives) have shown that ice sheet initial conditions have a large effect on the projections and give rise to important uncertainties. The goal of this initMIP-Greenland intercomparison exercise is to compare, evaluate, and improve the i...
Article
Full-text available
Providing reliable projections of the ice-sheet contribution to future sea-level rise has become one of the main challenges of the ice-sheet modelling community. To increase confidence in future projections, a good knowledge of the present-day state of the ice flow dynamics, which is critically dependent on basal conditions, is strongly needed. The...
Thesis
Full-text available
The evolution of the Greenland ice sheet in the future is a major societal issue, given its potential contribution to global sea leve rise. The ice sheet is controlled by ice dynamics and climate conditons. Its modelling is a challenge due to the lack of data covering the whole ice sheet and the fine scale of the interaction processes between the i...
Article
Full-text available
In the context of global warming, the projected Greenland sea level rise contribution is mainly controlled by the interactions between the Greenland ice sheet (GrIS) and the atmosphere, in particular through the temperature and surface mass balance – elevation feedback. In order to evaluate the importance of these feedbacks, we used three methods t...
Article
Full-text available
Earlier large-scale Greenland ice sheet sea-level projections (e.g., those run during the ice2sea and SeaRISE initiatives) have shown that ice sheet initial conditions can have a large effect on the projections and give rise to important uncertainties. The goal of the initMIP-Greenland intercomparison exercise is to compare, evaluate and improve th...
Poster
In the aim of evaluating the importance of the surface elevation feedback of the Greenland ice sheet (GrIS) between a regional atmospheric model (MAR) and Greenland ice sheet model (GRISLI), we used three methods to represent the interactions between MAR and GRISLI under the RCP 8.5 scenario from 2000 to 2150. For one method, there is no coupling a...
Poster
Full-text available
In the aim of evaluating the importance of the surface elevation feedback of the Greenland ice sheet (GrIS) between a regional atmospheric model (MAR) and Greenland ice sheet model (GRISLI), we used three methods to represent the interactions between MAR and GRISLI under the RCP 8.5 scenario from 2000 to 2150. For one method, there is no coupling a...
Research
Full-text available
Initializing the Greenland ice sheet to investigate its sensitivity to climate changes: a study with the GRISLI model.

Network

Cited By

Projects

Project (1)
Project
Future sea level rise is an important issue related to the continuing buildup of atmospheric greenhouse gas concentrations. The Greenland and Antarctic ice sheets, with the potential to raise sea level by ~70 metres if completely melted, dominate uncertainties in projected sea level change for the 21st century and beyond. This poses considerable societal and economic risks all around the world as a heavy concentration of the population lives along coastlines. Substantial progress has been made in recent years as summarised in the Fifth Assessment Report of IPCC with the development of improved models and more adequate climate forcing derived from General Circulation Models. However, important uncertainties remain, and efforts to date have fallen short to properly sample the full range of scenarios and potential feedbacks, notably between ice dynamics and changing atmospheric and oceanic conditions. The iceMOD project intends to produce improved projections of the ice-dynamic response of the polar ice sheets using a new generation of interactively coupled high-resolution ice sheet, regional atmosphere, and regional ocean models. These will be driven by a representative range of climate models and RCP scenarios for the period between 2010 and 2300. The main aims are to better quantify the probability distribution of future sea-level change from the Greenland and Antarctic ice sheets, to assess the likelihood of ice-sheet instabilities, and quantify remaining uncertainties.