The three zip files contain the following data (see Price et al. for detailed definitions of these variables).  Each file within these zip files corresponds to an individual filter measurements and consists of the flight number followed by filter number; these file names correspond to the identifiers used in the paper.

1. INP_data.zip: The data corresponding to each filter INP measurement, with fraction frozem , K, ns, INP concentration and associated errors.  

2. Size_distributions.zip: the size distributions used to derive aerosol surface area and determined from the optical probes. Includes image files of a plot corresponding to each filter measurement and a .csv file containing all the size distribution data with errors. 

3. Trajectories.zip: contains Hysplit outputs corresponding to each filter measurement, as discussed in the paper and summarised in Fig 9c.