Charlotte Stapleton

Biography

I am a PhD student at the Wolfson Atmospheric Chemistry Laboratories (WACL) at the University of York, and my current research is focused on oceanic ozone deposition. I previously completed my undergraduate degree in Chemistry at York, and spent the final year of my degree abroad working within the Institute for Atmospheric and Earth System Research, University of Helsinki.

For my Masters research project, I developed a model to back predict the concentration of cloud condensation nuclei (CCN) in Northern Finland to investigate how a reduction in anthropogenic sulphur emissions have influenced trends in CCN, and hence the radiative balance via clouds.

Qualifications

Masters in Chemistry; the Atmosphere and the Environment (with a year abroad).

Memberships and Fellowships

Royal Society of Chemistry.

Research interests

Air-sea exchange and atmospheric chemistry.

Teaching interests

Chemistry and maths.

Project title

Development of fast ozone detectors for measurement of ozone fluxes from ship and airborne platforms.

Supervisors

Funding

NERC Panorama Doctoral Training Partnership (DTP).

Project outline

My PhD project investigates oceanic ozone deposition through field measurements, modelling, and laboratory studies. Dry deposition of ozone to the ocean surface accounts for approximately one third of the total global dry deposition, with a high degree of uncertainty. Better constraint of this process has important implications for health, the oxidative capacity of the atmosphere, and quantification of the total global tropospheric ozone budget.

I have deployed a chemiluminescence ozone detector on board research cruises for the measurement of open ocean shipborne eddy covariance ozone fluxes. These will be used to constrain a refined parameterisation representing the deposition process in global models. I am investigating the chemical drivers of oceanic ozone deposition through laboratory studies using a heterogeneous flow reactor. As part of my PhD, I will also assist in the development of a cavity enhanced UV-absorption ozone instrument suitable for deployment on aircraft.

Presentations

Oral Presentation titled 'Shipborne Eddy Covariance Measurements of Oceanic Ozone Fluxes' at the American Geophysical Union conference 2023.

Poster Presentation titled ''Oceanic Ozone Deposition: A Revised Scheme Constrained by Eddy Covariance Measurements" at the American Geophysical Union conference 2023.

Awards and Prizes

Outstanding Student Presentation Award for the oral presentation titled "Shipborne Eddy Covariance Measurements of Oceanic Ozone Fluxes" at the American Geophysical Union conference 2023.