|From||"Roger Brugge" <email@example.com>|
|Date||Tue, 27 Nov 2012 09:20:47 +0000|
Forwarded from CLIMLIST... L-IPSL Post-doctoral fellow offer in isotopic geochemistry : Water Isotope database: present and past archives. The excellence laboratory L-IPSL of the Institut Pierre-Simon Laplace offers a post-doctoral position of 2 years to built a database on ^18 O and D isotopes combining observations and simulations at various time-scales. Context : Water stable isotopes are a powerful tool to decipher the hydrological cycle at global and local scales.The objectives of this project are: -to obtain a global vision of isotopic changes for well documented past periods (6kyrs, LGM, Eemian, DO events,…)and to better interpret isotopic proxies in terms of climate change. -to better understand the differences between data and models: are they related to the representation of processes? to different spatial (horizontal and/or vertical) scales between the data point and the model grid? -to better understand the factors controlling past isotopic evolutions in ice, carbonate and sediment archives.A forward proxy modeling will be developed for better quantify the relative influence of different climate parameters. Description of work : ThisworkispartoftheLabexL-IPSLprojectwhichaimsat improving ourknowledgeonclimatechangeandtoanticipateitsimpactsonnatureandsocietyThe main tool to be developed is a database on ∂18O and ∂D grouping data (instrumental and paleoclimate archives) and model simulations at different time scales. The activities include: -synthesis of precipitation and sea water observational data for the instrumental period prolonged for the period of historical simulations (1800-2010) by tree-rings, ice cores, speleothems and coral data; -synthesis of paleo-data, beginning with continental data, for key periods of the past (6k, Eemian, ..) or transition period where simulations are (will be) available (6 – 2k, D/O, Late Glacial,…). A link with two other IPSL projects concerning LGM and water vapor must also be developed. -making available simulated equivalentsfor each data point, at least for IPSL models. The recruited post-doctorate fellow will have to gather the data and discuss their validity/uncertainty for isotope value and chronology. A close collaboration with IPSL researchers will be necessary for this task that, certainly, will lead to the production of scientific publications. An experience in isotope geochemistry is required for this project. Supervision team:The work will be conducted at LSCE/IPSL, under the main supervision of V. Masson-Delmotte and in close connection with other researchers: Françoise Vimeux (Water Vapor), Laurence Gourcy (Precipitations), Camille Risi (Atmosphere Modeling), Jean Claude Dutay (Ocean Modeling); Catherine Pierre (Ocean Data), Valerie Daux (Tree Rings), Dominique Genty (Speleothems), Claire Waelbroeck (Ocean Cores), Didier Roche (Glacial Periods), Laurent Bergonzini (Lakes), Bruno Turcq (Paleo-monsoon), Bruno Malaize (Lake Sediment). Duration and salary:Thepost-doctoratewillberecruitedat least for 12 months with a net monthly salary around 2000 euros, commensurate with experience. This includes social services and health insurance. Contact for applications:Applications should include a CV, a statement of research interests and the names of at least two references including e-mail addresses and telephone numbers. Applications should be submitted by e-mail to Valérie Masson-Delmotte (<Valerie.Masson@lsce.ipsl.fr>).
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