Background
In order to further reduce the considerable uncertainties in future climate projections, the development of an innovative, very high-resolution global climate model based on ICON is the main aim of the large collaborative project WarmWorld, funded by the BMBF. In spite of the very high resolution, small-scale processes, in particular atmospheric turbulence, still have to be parameterized in this model. As part of the module WarmWorld Smarter, the sub-project TurbO-Arctic, carried out jointly by the University of Cologne and the AWI, is focusing on the development and testing of optimized atmospheric turbulence parametrizations for stably stratified conditions. Within TurbO-Arctic, data-model fusion approaches will be developed and used to optimize turbulence parametrizations at the University of Cologne.
At AWI, we will implement the optimized turbulence parametrization for stably stratified conditions into the ICON-WarmWorld model configuration. Following this, we will evaluate its impact on changes of Arctic boundary layer processes, Arctic atmospheric circulation and, beyond that, changes of the mid-latitude atmospheric circulation. This will allow us to assess how changes in the turbulence parametrization contribute to improvements in the overall ICON model performance.
Tasks
- Implementation of the optimized turbulence parametrizations into the ICON-WarmWorld model configuration
- Selection of an optimum parameter set for the turbulence parametrization
- Â Set-up and performance of model sensitivity experiments using ICON, with standard and optimized turbulence parametrizations in a regional Arctic and a global model configuration (in particular for periods with intensive atmospheric observations)
- Evaluation and process-based analyses of Arctic boundary-layer processes, Arctic atmospheric circulation and, changes of the mid-latitude atmospheric circulation using reanalysis data and independent observations from previous and new measurement campaigns as the baseline
- Identification of interactions between boundary layer processes and large-scale atmospheric circulation changes, which determine how changes in the turbulence parametrization contribute to improvements in the overall ICON performance
- Presentation of project results in peer-reviewed publications and international conferences.
Requirements
- PhD in meteorology, climate physics, physics or related fields
- Advanced and proven skills in Fortran, Python, or similar programming languages
- Experience in working with large numerical model codes, preferable on Unix-like operating systems and HPC systems
- Very good skills in processing, statistical analyses and visualization of big data
- Very good command of English language in both writing and speaking
- Ability to work focused, independently, and cooperatively in a team.
Additional skills and knowledge
- Expertise in the development of turbulence parametriziations
- Knowledge of atmospheric in boundary-layer meteorology as well as large-scale atmospheric dynamics.
Further Information
This is a full-time position, limited until June 30th 2027. It is also suitable for part-time employment. The salary will be paid in accordance with the Collective Agreement for the Public Service of the Federation (Tarifvertrag des öffentlichen Dienstes, TVöD Bund), up to salary level 13. The place of employment will be Potsdam.
Postdocs have to register with AWI’s postdoc office PROCEED, thereby gaining access to a set of tailor-made career development tools.
- our scientific success – excellent research
- collaboration and cooperation – intra-institute, national and international, interdisciplinary
- opportunities to develop – on the job and towards other positions
- an international environment – everyday contact with people from all over the world
- flexible working hours and the possibility of mobile working up to 50% of regular working hours
- health promotion and company fitness
- support services and a culture of reconciling work and family
- occupational pension provision (VBL)
Equal opportunities are an integral part of our personnel policy. The AWI aims to increase the number of employees who are women, and therefore, strongly encourages qualified women to apply.
Applicants with disabilities will be given preference when equal qualifications are present.
The AWI fosters the compatibility of work and family in various ways and has received a number of awards as a result of this engagement.
Please submit your application by September 4th 2024, exclusively online.
Reference number:Â 24/149/D/Kli-b
For further information about this opportunity click here.