Professor Lucy Carpenter FRSC, FRS

01904 324588
E-mail: lucy.carpenter@york.ac.uk

Atmospheric chemistry

Research Summary

My group’s research encompasses gas phase tropospheric chemistry, heterogeneous chemistry on ocean surfaces, long-term atmospheric observations, and ocean emissions of halogenated compounds effecting tropospheric and stratospheric chemistry. 

Current projects include:

Atmosphere-ocean interactions
Atmosphere-ocean interactions play a key role in regulating atmospheric composition and climate. We study the controls and mechanisms responsible for the release of a wide range of oceanic trace gases - including volatile halogens, dimethyl sulfide, isoprene and monoterpenes -  and the influence of these gases on atmospheric chemistry.

Oceanic ozone dry deposition
The major chemical controls on ozone deposition to the ocean are iodide (I-) and dissolved organic material (DOM). Through measurements in the sea surface microlayer (SSM), in bulk seawater, and in the laboratory, we are developing better understanding of these key interactions and how they may also provide a source of atmospherically important trace gases to the marine troposphere.

Long-term atmospheric composition
Lucy is the UK principal investigator of the Cape Verde Observatory (CVO) – a World Meteorological Organisation-Global Atmospheric Watch (WMO-GAW) global station. The University of York team has measured trace gases (O3, CO, NO, NO2, NOy, VOCs, halocarbons, mercury) at the station for over 10 years, supported by the Natural Environmental Research Council (NERC), allowing us to monitor global atmospheric trends and to study chemical processes occurring in the remote atmosphere.

Cape Verde ObservatoryOceanic ozone deposition

Selected Publications

  • Evaluating oceanic uptake of atmospheric CCl4: A combined analysis of model simulations and observations
    Suntharalingam, P., Buitenhuis, E., Carpenter, L.J., Butler, J.H., Messias, M.J., Andrews, S.J., Hackenberg, S.C, Geophys. Res. Lett., 2019, 46, 472-482.
  • Scenarios and information for policymakers
    Carpenter, L. J., Daniel J.S. (Lead Authors), E.L. Fleming, T. Hanaoka, J. Hu, A.R. Ravishankara, M.N. Ross, S. Tilmes, T.J. Wallington, D.J. Wuebbles, Chapter 6 in Scientific Assessment of Ozone Depletion: 2018, Global Ozone Research and Monitoring Project – Report No. 58, World Meteorological Organization, Geneva, Switzerland, 2018.
  • Alpine ice evidence of a three-fold increase in atmospheric iodine deposition since 1950 in Europe due to increasing oceanic emissions
    Legrand, M., J. R. McConnel, S. Preunkert, M. Arienzo, N. Chellman, K. Gleason, T. Sherwen, M. J. Evans, L. J. Carpenter, Proc Natl Acad Sci U S A, 2018, 115, 12136-12141.
  • Discrepancy between simulated and observed ethane and propane levels explained by underestimated fossil emissions
    Dalsoren, S.B., Myhre, G., Hodnebrog, O., Myhre, C.L., Stohl, A., Pisso, I., Schwietzke, S., Hoglund-Isaksson, L., Helmig, D., Reimann, S., Sauvage, S., Schmidbauer, N., Read, KA., Carpenter, L.J., Lewis, AC., Punjabi, S., Wallasch, M., Nature Geoscience, 2018, 11, 178-.
  • Evidence for renoxification in the tropical marine boundary layer
    Reed, C., Evans, M. J., Crilley, L. R., Bloss, W. J., Sherwen, T., Read, K. A., Lee, J. D. & Carpenter, L. J., Atmospheric Chemistry and Physics, 2017, 17, 4081-4092.
  • Reversal of global atmospheric ethane and propane trends largely due to US oil and natural gas production
    Helmig, D., Rossabi, S., Hueber, J., Tans, P., Montzka, S. A., Masarie, K., Thoning, K., Plass-Duelmer, C., Claude, A., Carpenter, L. J., Lewis, A. & Punjabi, S. et al., Nature Geoscience, 2016, 9, 490–495.
  • Chemistry and Release of Gases from the Surface Ocean
    Carpenter, L. J. & Nightingale, P. D. Chemical Reviews, 2015, 115, 4015-4034.
  • Atmospheric iodine levels influenced by sea surface emissions of inorganic iodine.
    L J Carpenter, S M MacDonald, M D Shaw, R Kumar, R W Saunders, R Parthipan, J Wilson and J M C Plane, Nature Geoscience, 2013, 6, 108-111.