Lidar/Laser Spectrometers
type: Concept

PALMS-NG
type: Concept
change note: 2022-02-23 08:19:13.0 [tstevens] Insert Concept add broader relation (PALMS-NG [ecbe1db3-e9d0-47bf-b29a-0e9f0e5b0d61,836037] - Lidar/Laser Spectrometers [46238695-5577-4fad-91bf-0a2fdf8a9b19,827398]);
in scheme: instruments
definition: The Purdue PALMS-NG instrument measures single-particle aerosol composition using UV laser ablation to generate ions that are analyzed with a time-of-flight mass spectrometer. The PALMS size range is approximately 150 to >3000 nm and encompasses most of the accumulation and coarse mode aerosol volume. Individual aerosol particles are classified into compositional classes. The size-dependent composition data is combined with aerosol counting instruments from Aerosol Microphysical Properties (AMP), the Langley Aerosol Research Group Experiment (LARGE), and other groups to generate quantitative, composition-resolved aerosol concentrations. Background tropospheric concentrations of climate-relevant aerosol including mineral dust, sea salt, and biomass burning particles are the primary foci for the ATom campaigns. PALMS also provides a variety of compositional tracers to identify aerosol sources, probe mixing state, track particle aging, and investigate convective transport and cloud processing.