Stage-resolved in-cloud scavenging of submicron and BC-containing particles: A case study

摘要: Abstract Interactions between clouds and black carbon (BC) represent a significant uncertainty in aerosol radiative forcing. To investigate the influence of cloud processing on scavenging BC, concurrent measurement individual droplet residue particles (cloud RES) interstitial INT) throughout event was deployed at Mt. Tianjing (1690 m a.s.l.) southern China. An aethalometer (AE-33), single particle mass spectrometer (SPAMS) scanning mobility sizer (SMPS) were used to concentration equivalent BC (EBC), size-resolved number BC-containing particles, submicron real-time, respectively. The number-based SEs varied 2.7 31.1%. Mass efficiency (MSE) ranged from 4.7% 52.6% for EBC, consistent with SE (from 11.3% 59.6%) event. Several factors that may are considered examined. most likely determined by factor, i.e., liquid water content (LWC), R2 > 0.8 power function Stage-resolved investigation further reveals size matters more than other formation stage, whereas there is an increasing role mixing state development stability stage. We also observed lower internally mixed organics, previous literature.