An Instrument for Measuring Size-Resolved Aerosol Hygroscopicity at both Sub- and Super-Micron Sizes

Figures & data

FIG. 1 Schematic of the AHS.

FIG. 2 Linear regression of calibration aerosols with indices of refraction from 1.40 to 1.48 against AHS factory calibration.

FIG. 3 Linear regression of all calibration aerosols against the AHS factory calibration.

FIG. 4 Mean DHGF spectra for both the higher and lower altitude samples taken during CARMA-III. The higher altitudes ranged from 200 to 470 m MSL while the lower altitude samples were all at 30 m MSL. The error bars represent the standard errors of the mean values.

FIG. 5 High and low altitude DHGF spectra for flight 825.

FIG. 6 Normalized DHGF spectra (ratio of delayed to non-delayed channel) from flight 813 showing the difference in growth rate for the fire plume and sea salt aerosols.