***** Dataset title *****

Single aerosol measurements from a wideband integrated bioaerosol sensor, collected during the Antarctic Circumnavigation Expedition (ACE).

***** Dataset abstract *****

This data set contains the time series of single particle data, measured by the wideband integrated bioaerosol sensor (WIBS-4, University of Hertfordshire, Hatfield, UK), during the Antarctic Circumnavigation Expedition (ACE), which was conducted between 20th of December 2016 and 19th of March 2017. WIBS provides aerosol optical diameter (5 μm - 14 μm), asymmetry factor and fluorescent signals on three different channels. WIBS measures single aerosol particles at a sampling rate of 125 Hz. More technical details about WIBS could be found in Kaye et al. (2005).  

***** Original data collection *****

During ACE a suite of aerosol instruments, including WIBS, measured atmospheric samples. More details about the inlet and conditioning of the extracted atmospheric sample could be found in Walton & Thomas (2018). The original raw data comprised 3860 CSV files. In our analysis, a Python script was used we combined the initial data files and remove the non-essential header text files that were related to instrument specifications. We only kept the data associated with size, fluorescent signals, asymmetry factor, missing aerosol particles counts, and fluorescent light source powers. The final CSV files were divided into six parts that correspond to the single particle data collected throughout the whole campaign. In our analysis we mainly over-sampled the single particle data to 5-minute or 1-hour time intervals assuming that variation in fluorescent aerosol particles could be reasonably captured at these time scales. 

***** Dataset contents *****

- part_1_Cape_Town_Kerguelen.csv, data file, comma-separated values
- part_2_Kerguelen_Hobart.csv, data file, comma-separated values
- part_3_Hobart_Mertz.csv, data file, comma-separated values
- part_4_Mertz_Punta Arenas.csv, data file, comma-separated values
- part_5_Punta_Arenas_Cape_Town.csv, data file, comma-separated value
- part_6_Cape_Town_Bremerhaven.csv, data file, comma-separated values
- data_file_header.txt, metadata, text
- README.txt, metadata, text

***** Dataset contact *****

Alireza Moallemi, Paul Scherrer Institute. ORCID: 0000-0002-9491-1993. Email: alireza.moallemi@psi.ch

***** Dataset license*****

This aerosol measurement dataset collected using a WIBS during ACE is made available under the Creative Commons Attribution 4.0 International License (CC BY 4.0) whose full text can be found at https://creativecommons.org/licenses/by/4.0/

***** Dataset citation *****

This dataset can be cited as: 
Moallemi, A. and Schmale, J. (2021). Single aerosol measurements from a wideband integrated bioaerosol sensor, collected during the Antarctic Circumnavigation Expedition (ACE). (1.0) [Data set]. Zenodo. https://doi.org/10.5281/zenodo.5109386