Black carbon data from an ice core drilled at SIGMA-D, northwestern Greenland: part 2, including results of albedo reduction calculations and air mass back trajectory analyses

An ice core drilled at the SIGMA-D site in northwestern Greenland was analysed with a Continuous Flow Analysis (CFA) system at the National Institute of Polar Research. refractory black carbon (rBC) particles with diameters between approximately 70 and 4000 nm were measured using a Wide Range Single Particle Soot Photometer (WR-SP2) attached to the CFA system. Mass and number concentrations of rBC particles, size distributions, mass median diameters, and average mass of rBC particles are presented. Estimated albedo reductions due to rBC, and results of air mass back trajectory analyses are also presented.