Gabriel Chiodo

My group

Marina Friedel

PhD thesis (2020-2023) at ETH-Zurich. See IAC-ETH website

Short Bio: Marina studied physics at the University of Tübingen, Germany, including a stay at the University of Cape Town, South Africa. During her studies, she mainly focused on elementary particle physics and the application of particle physics for medical purposes. For her Master’s thesis at the department of radiation oncology at the University hospital in Tübingen, she developed a method for the quality assurance of magnetic-resonance guided radiotherapy using Monte-Carlo simulations (See webpage).

Project description: In her thesis project, she will assess the influence of Arctic ozone on Northern hemispheric climate examining its feedback on stratosphere-troposphere coupling and surface projections on various time scales. She will explore the mechanisms whereby ozone affects the circulation, such as zonal asymmetries in the distribution of Arctic ozone, as well as the impact of uncertainties in future ozone trends and their influence on projections of Northern hemisphere climate change. Her thesis is supervised by Prof. T. Peter and myself, and is part of the SNF-funded TORSO project

Sandro Vattioni

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PhD thesis (2020-2023) at ETH-Zurich. See IAC-ETH website

Short Bio: Sandro studied Earth Sciences at ETH Zurich. For his Masters, he focused on atmospheric and climate sciences including a semester abroad at Hong Kong University of Science and Technology. Sandro conducted his Master's thesis at Harvard University in the group of Prof. David Keith at the School of Engineering and Applied Science. In his Master's thesis, he used a global aerosol chemistry climate model to investigate microphysical and chemical impacts of various stratospheric solar geoengineering sulfate emission scenarios (see paper). Sandro is a weather officer in the Swiss armed forces where he served for about 2 years, and where he soon will be going to be geography teacher at secondary education level.

Project description: In his PhD thesis, Sandro will work on the chemical and climatic impacts of solid particles for stratospheric solar geo-engineering. He will perform exploratory work, which includes in a first step various lab experiments to investigate the chemical and microphysical interactions of calcite and alumina particles in stratospheric conditions. In a second step the results of the lab experiments will be used to build parameterizations in the global aerosol chemistry climate model SOCOL-AER-MPIOM. The model will then be used to investigate the impacts of stratospheric solar geoengineering by solid aerosols on stratospheric chemistry (including ozone) and dynamics as well as climate feedbacks in general. The project includes collaborations with various institutes and laboratories at ETH Zurich, Paul Scherrer Institute and the Keutsch group at Harvard University. His thesis is supervised by Prof. T. Peter and myself, and is part of the ETH Research Grant ETH-17 19-2.

Jessica Oehrlein

PhD thesis (2018-2022) at Columbia University (co-supervised with Prof. L.M.Polvani)

Project description: Jessie holds a MSc degree in applied mathematics from Columbia University. She completed a Master Thesis on the connection between solar variability and North Atlantic climate, which resulted in a paper published in the prestigious Nature Geoscience journal (see here). For her PhD, she will investigate Sudden Stratospheric Warmings (SSWs), their drivers and impacts on tropospheric climate. Her thesis is supervised by Prof. L.M. Polvani and myself.