The long-term ground-based HBAO operations are based on autonomous, robust instrumentation operating continuously, to document the seasonal, annual and interannual variability of the aerosol concentrations and type in the area
Parameter | Instrument | Frequency and time resolution | Period |
Mass concentration | TEOM (model 1405, R&P) | continuous, 5-min | 2012- |
Black carbon concentration | Aethalometre (Model AE-1, Magee Inc) | continuous, 5-min | 2012-2016 |
Aerosol scattering coefficient | 3-lambda nephelometer (Model 3596, TSI Inc) | continuous, 5-min | 2015- |
Aerosol size distribution | Aerodynamic Particle Sizer spectrometer Model 3321, TSI Inc) | continuous, 5-min | 2015- |
Aerosol sampling | Partisol (Model 2205, Thermo Inc) | Bi-daily, 24-h | 2015- |
Ozone mixing ratio | UV-Analyser (Environment SA) | continuous, 5-min | 2012- |
Wind speed and direction | Meteorological station (Vaisala) | continuous, 1-min | 2012- |
AOD and column optical properties | Sunphotometer (CIMEL, AERONET/Photons) | continuous, 5-min | 2011- |