Aerosol concentration during the MR20-05C cruise of R/V Mirai

Aerosol particle number concentration data obtained from the R/V Mirai cruise in 2020 (MR20-05C), which were continuously measured using a mixing-type condensation particle counter (MCPC model 1710, Brechtel Mfg Inc) located in an experimental room on the flying bridge. Ambient air was drawn through ~3-m-long tube and then was dried by a Nafion-type aerosol dryer placed in front of MCPC to avoid the condesation of water inside the tubing and instrument and to sample "completely dried" particles.