Graphical Abstract

Koga, S., 2024: Optical Properties of Aerosol Particles in the Atmospheric Boundary Layer over the Northwestern Pacific: High Refractive Index for Coarse Particles in Pristine Air. J. Meteor. Soc. Japan, 102.
Early Online ReleaseGraphical Abstract New GA


Plain Language Summary: The purpose of this study is to estimate complex refractive indices m (n, k) = n – ki of aerosol particles over the northwestern Pacific using observed aerosol scattering and absorption coefficients and number size distributions. This study reports that the estimated high n value of the coarse particles in pristine air masses is likely caused by the optical properties of secondary organic aerosols condensed on coarse particles.