AGASP-II ARCTIC HAZE AEROSOL CHARACTERISTICS - INFLUENCE OF VOLCANIC-ERUPTION EMISSIONS

Possible intrusion of eruption material from the 1986 eruptions of Augustine volcano into Arctic Haze measurements is considered by comparing haze samples with samples collected directly in the eruption plume. Based on aerosol particle size distribution, particle characteristics, and and relative locations of the eruption plume and the haze sampling flight paths it is concluded that intrusion might have occurred during three of the haze flights cited here, but only to a very slight extent, affecting only the larger size particles which constitute a few percent of the total haze aerosol mass.