Understanding the aerosol-cloud interactions in ship-dominated and cleaner environments in the Celtic Sea.

Navaneeth Meena Thamban; Huihui Wu; Thomas Choularton; Hugh Coe; Keith Bower; Emily Matthews; Thomas Bannan; Nicholas Marsden; James Lee; Dominika Pasternak; Ming-Xi Yang; Stephanie Batten; Thomas Bell; Loren Temple; Stéphane Bauguitte

doi:https://doi.org/10.5194/egusphere-egu23-11259

[Back] [Session AS3.1]

EGU23-11259

https://doi.org/10.5194/egusphere-egu23-11259

EGU General Assembly 2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Understanding the aerosol-cloud interactions in ship-dominated and cleaner environments in the Celtic Sea.

Navaneeth Meena Thamban¹, Huihui Wu¹, Thomas Choularton¹, Hugh Coe¹, Keith Bower¹, Emily Matthews¹, Thomas Bannan¹, Nicholas Marsden¹, James Lee^2,5, Dominika Pasternak⁵, Ming-Xi Yang⁴, Stephanie Batten⁵, Thomas Bell⁴, Loren Temple⁵, and Stéphane Bauguitte³

Navaneeth Meena Thamban et al.

¹Centre for Atmospheric Science, Department of Earth and Environmental Science, University of Manchester, Manchester, UK
²National Centre for Atmospheric Science, University of York, York, UK
³Facility for Airborne Atmospheric Measurements (FAAM), Building 125, Cranfield University, Cranfield, UK
⁴Plymouth Marine Laboratory, Plymouth, UK
⁵Wolfson Atmospheric Chemistry Laboratories, Department of Chemistry, University of York, York, UK

Aerosol-cloud interaction contributes to one of the highest uncertainties in radiative forcing estimations. Aerosols from ship emissions alter the cloud properties and have become an important source of anthropogenic air pollution in recent decades. We have measured the size distributions and number concentrations of aerosols in the cloud and outside clouds using various onboard instruments such as cloud droplet probe (CDP; DMT), passive cavity aerosol spectrometer (PCASP, DMT), Scanning Mobility Particle Sizer (SMPS) and Single Particle Soot Photometer (SP2; DMT). The measurements were performed in the ship emission-dominated environments and relatively cleaner regions of the Celtic Sea. We discuss the difference in the characteristics of in-cloud and out-cloud measurements in these relatively contrasting environments. The measurements were made between 29th September and 12th October 2021 using the Facility for Airborne Atmospheric Measurements (FAAM) research aircraft as a part of the Atmospheric Composition and Radiative forcing changes due to UN International Ship Emissions regulations (ACRUISE) Project.

How to cite: Thamban, N. M., Wu, H., Choularton, T., Coe, H., Bower, K., Matthews, E., Bannan, T., Marsden, N., Lee, J., Pasternak, D., Yang, M.-X., Batten, S., Bell, T., Temple, L., and Bauguitte, S.: Understanding the aerosol-cloud interactions in ship-dominated and cleaner environments in the Celtic Sea., EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-11259, https://doi.org/10.5194/egusphere-egu23-11259, 2023.