Associate Professor in Earth Observations
Department of Physics and Astronomy
University of Leicester, Leicester, UK


Department of Physics and Astronomy

University of Leicester



eloise.marais [at] le [dot] ac [dot] uk


I am an Associate Professor in Earth Observations in the Department of Physics and Astronomy at the University of Leicester.

My group uses complex models, process-based information from chamber studies, and observations from ground-based and space-based sensors to provide mechanistic understanding of atmospheric chemistry and the influence of humans on the Earth system.

Current Research:

Visit the Publications page for past projects.

  • New remote sensing products for improved constraints on ozone formation.
    Constrain upper troposphere nitrogen oxides with new NASA and KNMI satellite products for improved understanding of ozone formation where it is a potent greenhouse gas.
    Collaborators: Daniel Jacob (Harvard), Sungyeon Choi, Joanna Joiner (NASA), Maria Belmonte-Rivas (KNMI), Ronald Cohen (UC Berkeley), Andreas Volz-Thomas (IAGOS-AISBL, Belgium), Steffen Beirle (Max-Planck).

  • Air quality, climate and ecosystem effects of charcoal production in Africa.
    Develop an inventory of aerosol and trace gas emissions from charcoal production, use, and transport in Africa to determine the effect of this rapidly increasing energy source on air quality, climate, and land cover.
    People: Alfred Bockarie (PhD student), Robert MacKenzie (U. Birmingham).

  • Tool for determining urban air quality and vegetation health
    Design a tool using Earth observations that city planners and environmental consultants can use to monitor urban air quality and green spaces.
    People: Karn Vohra (PhD student), William Bloss (U. Birmingham).
    Funding: RCUK EPSRC Researcher In Residence at Satellite Applications Catapult.

  • A multiplatform assessment of air pollution over the Atlantic Ocean
    Interpret the evolving contribution of inefficient combustion in Africa to pollution transported over the Atlantic Ocean using aircraft and satellite observations and the GEOS-Chem model.
    Collaborators: Steven Wofsy, Roisin Commane (Harvard), Helen Worden (NCAR).

  • Using Google Location History to track personal exposure to air pollution
    Track personal exposure to ozone and fine particles using archived geolocation data to determine whether this detailed information can be used to assess the impact of air pollution on health in an increasingly mobile world.
    Collaborators: Christine Wiedinmyer (CIRES).

  • Health effects of fossil fuel use in Africa now and in the future
    Quantify the adverse effects of air pollution from present-day and future fossil fuel use in Africa to inform air quality policy.
    Collaborators: Loretta Mickley, Rachel Silvern (Harvard), Christine Wiedinmyer (CIRES)
    Contributors: Wallace Foundation