The Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI) seeks motivated candidates for a postdoc position on Climate Modelling and Isotope Research.


This position is part of the CiASOM project (“Changes of water isotopes in Arctic Sea ice, Ocean and atMosphere”). In this project, novel isotope data sets obtained during the MOSAiC expedition will be studied to better understand the Arctic water cycle and its future changes. The aim of the CiASOM project is to investigate the different Arctic moisture sources and their contribution to the global water cycle and to quantitatively record relevant exchange processes between ocean, sea ice and atmosphere. To this end, stable water isotopes will be used as climate and environmental parameters for the study of the current water cycle and isotope measurements will be linked to high-resolution climate simulations.


  • A series of high-resolution climate simulations will be carried out using the atmosphere model ECHAM6, which includes explicit isotope diagnostics. These climate simulations will be used to link isotope measurements carried out on-board FS Polarstern and various Arctic land stations and to enable a common interpretation.
  • For the intended model-data comparison, it is necessary to systematically process and analyse the water vapour isotope data measured with a CRDS instrument on FS Polarstern. In addition, it is planned to compile, standardise and prepare further isotope data sets from various Arctic land stations for comparison with the climate simulations carried out, in cooperation with international partners.

Key requirements

  • PhD in the field of physics, meteorology, geo-sciences, climate sciences, or similar
  • Experience with complex climate models (application and evaluation)
  • Experience in measurement and interpretation of stable water isotopes would be an advantage

Details of position

  • Start of position: November 1st 2020 or as soon as possible
  • full-time position
  • place of employment: Bremerhaven, Germany
  • contract duration: 3 years

Deadline for applications

October 21st 2020

For further information and exclusive online application, please see:

For any inquiry about this position, please contact Martin Werner (