Fig. 2: Key factors driving new particle formation in the marine boundary layer (as indicated by elevated N>3nm/N>10nm).
From: New particle formation in the remote marine boundary layer

Dependence of N>3nm/N>10nm on total particle surface area concentrations and ambient temperature is shown under different cloud conditions during the ACE-ENA campaign. These conditions include: a scattered clouds (cloud fraction between 0.3 and 0.85); b overcast conditions (cloud fraction over 0.85), and c clear sky (cloud fraction below 0.3). The cloud fraction is determined from the measurement of a total sky imager at the ENA site. Each data point represents the average of measurements within an altitude bin of 200 m inside the marine boundary layer during the vertical profiles by the G-1 aircraft. Source data are provided as a Source Data file.