HRALC

Aerosol Life Cycle: HR-ToF-AMS

15 June 2011 - 15 August 2011

Lead Scientist: Qi Zhang

Observatory: AMF, OSC

An Aerodyne High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS) was deployed during the Aerosol Life Cycle – IOP campaign at BNL in summer 2001. Highly time- and size-resolved aerosol composition data, including organic mass spectra, were acquired to assess the source and atmospheric processing of inorganic and organic submicron particles. A main objective of this project was to provide high quality aerosol chemical measurement data from the HR-ToF-AMS for thorough evaluation and validation of the new Aerodyne Aerosol Chemical Speciation Monitor (ACSM) instrument installed in MAOS-A through direct intercomparisons. The HR-ToF-AMS measurements greatly increased the thoroughness of the data interpretation of the ALC-IOP by complimenting the MAOS platform instrument suite (e.g., SP2, HRPTRMS, ACSM, Trace Gas Suite, PASS-3, Aethelometer, UHSAS).