Physical and chemical properties of aerosol particles and cloud residuals on Mt. Åreskutan in Central Sweden during summer 2014

Emelie Linnéa Graham, Paul Zieger, Ulla Wideqvist, Tabea Hennig, Radovan Krejci, Johan Ström

The size distribution, volatility and hygroscopicity of ambient aerosols and cloud residuals were measured with a differential mobility particle sizer (DMPS) and a volatility–hygroscopicity tandem differential mobility analyser (VHTDMA) coupled to a counterflow virtual impactor (CVI) inlet during the Cloud and Aerosol Experiment at Åre (CAEsAR) campaign at Mt. Åreskutan during summer 2014. The chemical composition of particulate matter (PM) and cloud water were analysed offline using thermo-optical organic carbon and elemental carbon (OC/EC) analysis and ion chromatography.

Aerosol particles are ubiquitous in the atmosphere, and important for the Earth radiative balance. According to the Intergovernmental Panel on Climate Change, aerosol-cloud interactions currently represent the largest uncertainty in estimates of the anthropogenic perturbation of the Earth’s radiative budget.

Using the collected data sets, we investigate the similarities and differences in the chemical composition, volatility and hygroscopicity of the aerosol particles and the cloud residuals, along with the influence of the clouds on the ambient particle size distribution.

Citation

Emelie Linnéa Graham, Paul Zieger, Ulla Wideqvist, Tabea Hennig, Radovan Krejci, Johan Ström (2020) Physical and chemical properties of aerosol particles and cloud residuals on Mt. Åreskutan in Central Sweden during summer 2014. Dataset version 1. Bolin Centre Database. https://doi.org/10.17043/graham-2020-aerosol-are-1

References

Graham EL, Zieger P, Mohr C, Wideqvist U, Hennig T, Ekman AML, Krejci R, Ström J, Riipinen I (2020) Physical and chemical properties of aerosol particles and cloud residuals on Mt. Åreskutan in Central Sweden during summer 2014, Tellus B: Chemical and Physical Meteorology 72:1, 1⁠ – ⁠16. https://doi.org/10.1080/16000889.2020.1776080

Data description

Excel file (Excel 2016, xlsx format) containing 8 sheets, with the first being a read me that explains the content of the 7 data sheets:

• Two sheets containing size distribution measurements, with one separated in ambient aerosols and cloud residuals using a CVI inlet.
• Two sheets containing the chemical composition of the particulate and aqueous phase respectively.
• Two sheets containing the VHTDMA data describing the hygroscopic growth and volatility, respectively, separated in ambient aerosols and cloud residuals.
• One sheet containing the black carbon mass ratio of the ambient aerosols and cloud residuals.

The same data are also provided in 8 separate comma-separated values (csv) files.

The data sheets contain sections with no data resulting from post processing in order to clean and unify the data, hence making it independent of the instrumental settings changed for different ambient conditions in the field.