Long term observation of sub-saturation hygroscopicity in North Atlantic

This dataset reports the results of in situ measurements near 5 years aerosol hygroscopic growth factor from 2009 to 2014 at Mace Head Research Station(53.33° N, 9.90 °W; 21m a.m.s.l; 300m from the waterline). This dataset is discussed in a manuscript titled "Seasonal trends of aerosol hygroscopicity and mixing state of clean marine and polluted continental masse at Mace Head" by "Wei Xu, Jurgita Ovadnevaite, Kirsten. Fossum, Chunshui Lin, Ru-Jin Huang, Colin O’Dowd, Darius Ceburnis" which is submitted to Journal of Geophysics Research: Atmospheres.