This position is part of an inter-disciplinary project funded by the Swedish Research Council for Sustainable Development (Formas), investigating how the scientific research process is influenced by social and ethical values, in terms of choices of problems to study, results to publish, models and parameter ranges to use, and not least ways to present and communicate results and their related uncertainty, in turn influencing decision-making. The work will be carried out in collaboration with the Department of Philosophy at the Swedish Royal Institute of Technology (KTH).
Climate model simulations will be performed that challenge the current understanding of aerosol-cloud interactions, which are at the heart of the uncertainty in climate sensitivity. In parallel, on the philosophical science side, this scientific process will be followed, and the influence of values on it closely examined.
The purpose of the project is two-fold; to investigate how ethical, societal and community considerations affect and drive climate scientists at different stages of the research process, and to investigate how radical choices of model parameters and setups influence the current uncertainty range for climate sensitivity. We will hereby provide critical assessments of assumptions, both in a physical sense, in the design of climate model experiments, and at a meta-level, in evaluating the climate research process.
Focusing on aerosol-cloud-climate interactions, we will test assumptions made in a climate model in a more extreme way than typically done, implementing variations of aerosol-cloud interaction parameterizations that may be improbable, but yet not impossible. All experiments will be based on aerosol-cloud interaction effects described in the published scientific literature, but with a focus on processes that have been suggested based on fine scale modelling or comparison with observations but not been adopted as standard in the climate modelling community.
The successful candidate will be running and analyzing results from a climate model, testing the limits of its sensitivity. The experiments will also be studied in the context of the CMIP6, to assess the deviation from “normal” of the choices made for the “extreme” setups. The model used in the group is NorESM, but the candidate may also propose other model options.
Postdoctoral positions are appointed primarily for purposes of research. Applicants are expected to hold a Swedish doctoral degree or an equivalent degree from another country.
Selection criteria will be scientific merit, whereby experience with running and analysing climate models is of particular merit.