ISIS Data Journal

The archive for ISIS research data


Investigation title: Arctic Cloud Chemistry: Can the Halogen "explosion" oxidize material at air-water interface?.

Release date: Fri May 29 07:04:43 BST 2015

Creator: Dr Andy Ward
Creator: Dr Arwel Hughes
Creator: Professor Adrian Rennie
Creator: Professor Martin King
Creator: Miss Stephanie Jones
Creator: Miss Amelia Marks

DOI: 10.5286/ISIS.E.24088964

Date of Experiment: Sun May 20 22:47:01 BST 2012

Publisher: STFC ISIS Facility

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:
Dr Andy Ward et al; (2012): 1210294, STFC ISIS Facility, doi:10.5286/ISIS.E.24088964


The Arctic climate is strongly influenced by clouds. The oxidative processing of pollutants in Arctic clouds affects droplet size and optical properties, important climatic effects. Arctic clouds contain naturally occurring organic lipids forming organic films on the droplet. Arctic cloud chemistry unusually involves chlorine and bromine radical chemistry. In this work we will study the kinetics of chlorine radicals with DPPC. Specifically we will (a) demonstrate that a common aqueous cloud oxidant, chlorine radical, can penetrate deep into the organic film and remove the film, quantifying its penetration distance (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 a STFC/NERC CASE award PhD students initial studies.

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