Post-doctoral position on the role of winds and oceanic interactions on Antarctic sea ice changes
Unviversité catholique de Louvain
The Georges Lemaître Centre for Earth and Climate Research (TECLIM; www.climate.be) is part of the Earth and Life Institute (ELI) of the Université catholique de Louvain (UCLouvain). It includes 15 academic staff, 7 administrative/technical staff and about 75 temporary scientific staff (Ph.D. students and postdoctoral researchers). Its research aims to understand the functioning of the Earth system, with emphasis on its climate component, and the interactions between human activities and their natural environment. Current research activities concern (1) past environmental and climate changes, (2) the present state of the Earth and solar systems, (3) human-environment interactions and (4) modelling tools.
TECLIM has a positive reputation in the field of global climate modelling. Using in-house developed Earth system models (ESMs) of intermediate complexity, the centre conducted seminal studies on the last glacial-interglacial cycles, the abrupt climate change that occurred 8,200 years ago, climate variability during the Holocene (including the last millennium) and future climate changes. The sea ice model (LIM) it built is considered essential in the community of climate and ocean modellers. A large number of original process studies were performed with this model coupled to various ocean general circulation models, especially the Nucleous for European Modelling of the Ocean (NEMO) platform (www.nemo-ocean.eu). These studies notably highlighted the key role played by sea ice–ocean interactions in controlling the circulation of the World Ocean. In addition, TECLIM contributed to the coupling of NEMO-LIM to the IPSL-CM and EC-Earth ESMs, and the regional climate models MAR and COSMO-CLM. A couple of years ago, based on recommendations made by the NEMO Sea Ice Working Group, LIM3 was selected by the NEMO Consortium as the core of the Sea Ice Modelling Integrated Initiative (SI3), which is now the official sea ice component of the last NEMO release (NEMO4; used by about 2000 scientists in around 200 projects worldwide). Over the past decade, TECLIM produced several important papers on the mechanisms responsible for past and future climate variability at high latitudes of both hemispheres and on the role of polar oceans and sea ice in observed and projected climate changes. Recently, it embarked on the study of polar climate predictability on seasonal-to-interannual timescales, both under idealized and realistic conditions.
Cryospheric Sciences (CR)
Ocean Sciences (OS)
The main objective of the project WINDSCOOP is to determine the impact of winds and oceanic processes on the sea ice cover at decadal to multi-decadal timescales. This will improve our understanding of the variability of the ice extent at those timescales and ultimately our ability to identify the origin of recent changes in sea ice extent and to predict future ones.
The post-doctoral scientist will be responsible for performing and analysing sensitivity experiments with the ocean model NEMO driven by atmospheric reanalyses and with the climate model EcEarth to estimate the impact of winds and oceanic processes on the sea ice cover. In particular, he/she will perform experiments in which the model winds will be nudged to observed winds. Both winds observations over the past decades and derived from a new reconstruction covering the past centuries will be used. Additional simulations in which the interactions with the ocean will be disabled will allow disentangling the direct contribution of the winds to sea ice changes from the one due to interactions with the ocean. On the basis on those experiments and analyses, the role of winds and of the feedbacks between ocean and sea ice in past and recent sea ice changes will be determined and quantified.
- To have a PhD in climatology or related field;
- To have published in peer-reviewed international journals;
- To have strong experience in programming and in managing large data sets;
- To have demonstrated good verbal and written communication skills in English;
- To have interest in working in a multidisciplinary team environment.
Previous experience in polar climate dynamics or in modelling is an asset.
Applicants should send an e-mail to Hugues Goosse (email@example.com) including (i) a statement of research experience, qualification and interest, (ii) a complete CV including a list of publications, and (iii) the name of two scientists who would agree to send a letter of recommendation