ISIS Neutron and Muon Source Data Journal

Oxidation of thin film at the air-water interface of cloud droplets using REAL atmospheric aerosol from polar, marine and urban sources

Abstract: The Earth's climate is strongly influenced by clouds. The oxidative processing of pollutants in clouds affects droplet size and optical properties, important effects. Common cloud pollutants are naturally occurring organic surfactants forming organic films on the droplet, The climatic effect depends on the rate of atmospheric oxidation of these films and whether any product film forms. In this work we will study the kinetics of hydroxyl radical with insoluble surfactants from samples from Antarctica, mid-Atlantic and Urban London. Specifically we will (a) demonstrate that an aqueous cloud oxidant, the OH radical, can oxidise a real atmospheric organic film with different provenances, b) calculate the effect of the reaction on the hygroscopic properties of a cloud droplet and demonstrate removal of the organic film may cause a cloud to evaporate (c) Support an STFC futures grant.

Public release date: 17 July 2018

Experimenter: Miss Rosalie Shepherd
Experimenter: Professor Martin King
Experimenter: Professor Adrian Rennie
Experimenter: Miss Rosalie Shepherd
Local Contact: Dr Maxmilian Skoda

DOI: 10.5286/ISIS.E.61784247

Parent DOI: 10.5286/ISIS.E.RB1510455

ISIS Experiment Number: RB1510455

Part Number: 1

Date of Experiment: 14 July 2015

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Miss Rosalie Shepherd et al; (2015): Oxidation of thin film at the air-water interface of cloud droplets using REAL atmospheric aerosol from polar, marine and urban sources, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.61784247