2014 and 2019 aerosol field observation dataset in Guangzhou, china

This dataset contains comprehensive, high-time-resolution atmospheric measurement data obtained from two field campaigns conducted in 2014 and 2019. It includes detailed aerosol physical properties, chemical composition, and meteorological parameters.

2014 Campaign:
Aerosol Size Distribution: Particle Number Size Distributions (PNSD) in the range of 9.8–414.2 nm were measured at a 5-minute resolution using a Scanning Mobility Particle Sizer (SMPS, TSI 3938) comprising a Differential Mobility Analyzer (DMA, TSI 3081L) and a Condensation Particle Counter (CPC, TSI 3772).
Non-Refractory PM1 Chemical Composition: Mass concentrations of organic matter (Org), nitrate (NO₃⁻), sulfate (SO₄²⁻), and ammonium (NH₄⁺) were quantified using a High-Resolution Time-of-Flight Aerosol Mass Spectrometer (HR-ToF-AMS, Aerodyne).

2019 Campaign:
Aerosol Size Distribution: Particle size distributions in the range of 11.3–532.8 nm were obtained using an SMPS system identical to the 2014 setup. The data have been corrected for multiple charging and diffusion losses.
Aerosol Hygroscopicity: Hygroscopic growth factors at 90% relative humidity were measured for particles with selected dry diameters (40, 80, 110, 150, and 200 nm) using a Hygroscopicity Tandem Differential Mobility Analyzer (H-TDMA).
Non-Refractory PM2.5 Chemical Composition: Mass concentrations of Org, NO₃⁻, SO₄²⁻, NH₄⁺, and chloride (Chl) were measured with a Quadrupole Aerosol Chemical Speciation Monitor (Q-ACSM).
Black Carbon Mass Concentration: Continuous monitoring was performed using an aethalometer (AE33, Magee Scientific).
Meteorological Data (Both Campaigns):
Wind Speed and Wind Direction data were recorded synchronously, typically at matching high-time-resolution intervals, providing essential context for atmospheric process analysis.
These two comprehensive field investigations at two adjacent sites during two different time periods. One was from 6th to 24th of November in 2019, at the Guangzhou Meteorological Bureau in Panyu, Guangzhou, China (23.01 ° N, 113.32 ° E), and the other was from November 22nd, 2014 to December 31st in 2014, at the Chinese Meteorological Administration (CMA) Atmospheric Watch Network (CAWNET) station in Panyu, Guangzhou, China (23.00 ° N, 133.21 ° E).