General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :
• defence and security,
• nuclear energy (fission and fusion),
• technological research for industry,
• fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
2024-32939
Division description
La Direction de la recherche fondamentale (DRF) du CEA mène des activités scientifiques dans les domaines de la physique, de la chimie, de la biologie et santé, des sciences des matériaux, des sciences du climat et de l'environnement, du numérique.Elle regroupe plus de 6000 personnes, sur les centres de Cadarache, Grenoble, Marcoule et Paris-Saclay, qui développent et mettent en œuvre des technologies et des instrumentations à la pointe de la recherche et de l'innovation.
Description de l'unité
Le LSCE est une unité mixte de recherche (UMR 8212) entre le CEA, le CNRS et l'Université de Versailles Saint-Quentin en Yvelines (UVSQ), localisé à l'Orme des Merisiers. Il fait partie de l'Institut Pierre Simon Laplace (IPSL), fédération francilienne de neuf instituts de recherche en climat et environnement. Le LSCE regroupe environ 320 chercheurs, ingénieurs et agents administratifs dont 150 personnels permanents issus des 3 tutelles et une cinquantaine de doctorants. Depuis janvier 2015, le LSCE s'organise en trois thèmes scientifiques : i) Archives et Traceurs ii) Cycles Biogéochimiques et Transferts dans l'Environnement iii) Climat et Cycles - Modélisation de leurs variabilités et de leurs interactions. Chacun de ces thèmes regroupe entre 4 et 7 équipes de recherche constituées autour d'outils et/ou sujets de recherche communs. Le LSCE s'appuie également sur trois plateformes : PANOPLY pour la géochimie analytique (partagée avec le laboratoire GEOPS), ICOS (pour la surveillance des gaz à effet de serre), et la plateforme de modélisation du système Terre (pilotée par l'IPSL). L'activité scientifique est facilitée grâce aux trois équipes support (Administration/Gestion, Informatique, Sécurité/Infrastructure).
Position description
Category
Environment and climate science
Contract
Fixed-term contract
Job title
Post-Doc on Impact of snow-atmosphere exchanges on the isotopic composition of Antarctic snow.
Socio-professional category
Executive
Contract duration (months)
24 months
Job description
Context: This post-doctoral research position is part of the ERC Synergy AWACA project (Atmospheric WAter Cycle over Antarctica, past, present & future, https://awaca.ipsl.fr/), which aims to advance the understanding of the atmospheric water cycle in Antarctica. The project is based on innovative observations of tropospheric meteorological conditions and isotopic composition of water vapour, clouds and precipitation along a transect between the Dumont d'Urville station on the coast and the Concordia station on the East Antarctic interior plateau (Adélie Land). Specific model developments are planned to interpret these observations, and our better understanding of the processes will in turn enable us to improve global and regional climate models in Antarctica.
Objective of the research position: Recent studies have highlighted the importance of sublimation and condensation processes within the atmospheric boundary layer on the isotopic composition of Antarctic surface snow. Quantifying these processes and including them in atmospheric models equipped with isotopes is crucial for advancing the interpretation of the isotopic signal from ice cores in terms of climate variability. The aim of this research position is to quantify snow-atmosphere isotope exchanges from observations, and to implement the missing first-order processes in the IPSL LMDZ atmospheric model.
For apply, please send CV and cover letter to cécile Agosta : cecile.agosta@lsce.ipsl.fr
Applicant Profile
The candidate should demonstrate (1) a solid background in atmospheric boundary layer physics or in snow physics, (2) experience in data analysis and scientific programming, and (3) scientific writing and communication skills.
Experience in exploiting observations to derive physical processes, and in implementing parameterizations in models, is highly desirable, as these will be central to the research activities of this position. Additional, but not mandatory, skills include experience in water isotope fractionation processes.
In addition to scientific expertise, the successful candidate is expected to work effectively in a team. The position requires a candidate who is proactive, rigorous, and capable of taking initiative to drive research projects forward.
In line with CEA's commitment to the integration of disabled people, this job is open to all. The CEA offers accommodations and/or organizational possibilities for the inclusion of disabled workers.
Position location
Site
Saclay
Job location
France, Ile-de-France, Essonne (91)
Location
Gif-sur-Yvette
Requester
Position start date
02/01/2025
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