Postdoctoral Fellow in Atmospheric Sciences

The Department of Environmetal Science is one of the largest departments at the Faculty of Science. The department consists of four units with more than 170 researchers, teachers, doctoral students and technical/administrative staff from over 30 countries. Research and teaching focuses on chemical contaminants, atmospheric science, biogeochemistry and ecotoxicology. As an employee at the Department of Environmental Science you will be part of a dynamic environment with research at the forefront of science, excellent education and with a strong international profile.

The research at the Atmospheric Science Unit follows an interdisciplinary approach towards understanding the composition of air and its influence on climate and human health. The majority of the research activities focus on the life cycle and impact of atmospheric particles known as aerosols as well as their precursor gases

More information about us, please visit: the Department of Environmental Science.

Project description

The interface between the ocean and the atmosphere is a critical component of the Earth system, and the surface ocean serves as a significant source of various trace gases that play important roles in Earth’s biogeochemical cycles and climate system. For example, the ocean emits biogenic volatile organic compounds (BVOCs) produced by microalgae, macroalgae, and certain microbes. When these compounds undergo oxidation, they can affect marine aerosols, which subsequently impact cloud processes and global radiative forcing. Therefore, understanding the chemical, eco-physiological, and environmental factors that drive BVOC production and cycling in the ocean, and their subsequent emission to the atmosphere, is a critical goal in atmospheric science.

To gain a deeper understanding of the coastal Baltic Sea's role in climate dynamics, Stockholm University (SU) and the University of Helsinki (UHHU) have launched the Centre for Coastal Ecosystem and Climate Change Research (CoastClim). Within this initiative, scientists are working to uncover the connections between coastal biodiversity, carbon cycling, and climate feedbacks. Consequently, a key objective is to improve our understanding of the coastal ocean as a source of BVOCs.

To support this effort, we are seeking applications for a postdoctoral position focused on marine BVOC analysis using chemical ionization mass spectrometry (CIMS). The postdoctoral researcher will operate a VOCUS CI-TOF with an AIM reactor continuously within a new floating atmospheric laboratory at Askö in the Swedish archipelago. The goal is to quantify BVOCs in seawater and ambient air.

Main responsibilities

The specific goals of this project are to:

1. Develop and characterise a new equilibration system designed for measuring dissolved BVOCs in seawater; and
2. Measure, analyse and interpret VOCUS CI-TOF data to understand seawater BVOC concentrations in different environments of the coastal Baltic Sea, as well as in mesocosm experiments conducted as part of the CoastClim project.

Qualification requirements

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.

Assesment criteria

The degree must have been completed at latest before the employment decision is made, but no more than three years before the closing date. An older degree may be acceptable under special circumstances. Special reasons refer to sick leave, parental leave, elected positions in trade unions, service in the total defense, or other similar circumstances as well as clinical attachment or service/assignments relevant to the subject area.

In the appointment process, special attention will be given to research skills, particularly experience in experimental atmospheric sciences, preferably with expertise in atmospheric mass spectrometry techniques (e.g., CIMS, PTR-MS, ACSM, AMS, etc.), and proficiency in data analysis.

About the post

The position involves full-time employment for a minimum of two years and a maximum of three years, with the possibility of extension under special circumstances. Start date 2024-11-01 or as per agreement.

We offer

With us, you will experience the dynamic interaction between higher education and research that makes Stockholm University an exciting and creative environment. You will work in an international environment and get favourable conditions. The university is located in the National City Park with good transport links to the city.

Stockholm University strives to be a workplace free from discrimination and with equal opportunities for all.

Contact

Further information about the position can be obtained from Dr. Matthew Salter, phone: +46 8 674 72 22, matthew.salter@aces.su.se or Ass. Prof Liine Heikkinen, phone: +35 8 449 955 756, liine.heikkinen@aces.su.se.

Application

Apply for the position at Stockholm University's recruitment system. Attach a personal letter and CV as well as the attachments requested in the application form. It is the responsibility of the applicant to ensure that the application is complete in accordance with the instructions in the job advertisement, and that it is submitted before the deadline.

The instructions for applicants are available at: How to apply for a position.

You are welcome to apply!