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Richard Johansson

PhD candidate in experimental physics, M.Sc. in atmospheric physics. Analyzing trace gases with KIMRA at Swedish Institute of Space Physics, providing vital data for climate research.

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Affiliation
Affiliated as doctoral student at Arctic Centre at Umeå University (Arcum) Section: Arctic Graduate School with a focus on Sustainable Development
Location
Norra Beteendevetarhuset, Humanioragränd 5, plan 3 Umeå universitet, 901 87 Umeå
Affiliation
Affiliated as doctoral student at Department of Physics
Location
Kiruna, Institutet för rymdfysik, IRF, - Umeå universitet, 901 87 Umeå

What is my work at the Department of Physics?

I am a PhD candidate specializing in experimental physics, conducting measurements of various trace gases in Earth’s atmosphere. Using the data from these measurements, I then retrieve various altitude-dependent profiles.

Background

I hold a Master of Science in Space and Atmospheric Physics from Luleå University of Technology, where I completed several advanced courses in atmospheric physics and radiation transport. The latter describes the physics behind how radiation interacts with different types of media, essential for understanding the theory in my doctoral project.

PhD Project

My research work primarily involves measuring and analyzing various trace gases in Earth’s atmosphere. To perform these measurements, I utilize the KIruna Microwave RAdiometer (KIMRA), a microwave radiometer installed at the Swedish Institute of Space Physics in Kiruna, which is also my primary workplace.

During winter-periods, I particularly focus on ozone measurements, as its levels vary significantly during winter within the polar circle, both due to dynamic processes and the influence of polar night. The measurements I conduct enable the retrieval of altitude-dependent profiles of the volume mixing ratio of ozone, which is the ratio between the number of ozone molecules and “air molecules.” This is done to assess whether significant ozone loss has occurred over time.

I also conduct measurements of oxygen, which enables the retrieval of altitude-dependent temperature profiles in the atmosphere. These profiles can be invaluable for detecting early indications of climate change.

Read more about my PhD project here