Spatial and temporal variability of iodine in aerosol

We have compiled iodine aerosol data from 55 field campaigns across the globe spanning 55 years (1963 to 2018), consisting of 7794 datapoints. Of these, 7722 are measurements of individual samples and the remaining 22 points are the reported averages of a total of 510 samples which we have not been able to retrieve. Since the source of iodine is mainly marine, only ship-borne campaigns (19 cruises) and coastal or insular campaigns (36 ground-based stations) have been considered. The dataset contains data that have not been published previously: Newmayer II, JC18 Cruise, 23rd Chinese Antarctic Campaign, Celtic Explorer MAP 2006 cruise, RRS Discovery AMT21 cruise, and R/V Sonne OASIS and TransBrom cruises.
Most of the aerosol samples were analyzed for total iodine (TI), but in some of the recent works total soluble iodine (TSI) analysis was reported. The associated paper describes a method for converting TSI into TI using data from campaigns where both TI and TSI were measured. Size segregated TI and TSI measurements as well as iodine enrichment factors relative to sodium and seawater are also included.