Instruments & Models

In-situ aerosol optical measurements

The Aurora 3000 three wavelength nephelometer is the instrument of choice for climate change researchers, helping them to derive the aerosol asymetry parameter, Angstrom coeeficient and the single scattering albedo of aerosols. Using it's innovative LED light source, the Aurora 3000 simultaneously measures at 525nm (green), 450nm (blue) and 635nm (red) to enable wide and in-depth analysis of the interaction between light and aerosols.  The Ecotech Aurora 3000 includes backscatter measurement that allows both standard integrating measurements of 9-170° and also the back scatter 90-170°. Retrieved parameters : Total scattering and backscattering coefficients
The Rack Mount Aethalometer Model AE33 measures light absorption by suspended aerosol particles at seven wavelengths, from 370 nm (UV) to 950 nm (IR).  Real-time measurements of particle concentrations can be made with a time resolution of two minutes to one hour.  Interpretation of the differences in optical response across the wavelength spectrum reveal information regarding aerosol size distribution, physical properties, and assist in identifying the primary components.  This instrument is widely used in monitoring studies involving large scale, regional air pollution problems. It incorporates scientific and technical advances designed to offer improved measurement performance, user features, communications and interface, and the ability to perform routine performance tests to verify correct operation. Most importantly, this instrument incorporates the patented DualSpot™ measurement method. This provides two significant advantages: elimination of the changes in response due to ‘aerosol loading’ effects; and a real-time calculation of the ‘loading compensation’ parameter which offers insights into aerosol optical properties, and has been interpreted in models of aerosol origins and aging. Retrieved parameters : Absorption coefficient
Organic Carbon - Elementary Carbon Analyzer
The Model-4 Semi-Continuous OC-EC Field Analyzer is the only commercially available field deployable OC-EC analyzer with true laser-based pyrolysis correction. It has a computer controlled flow system for enhanced sensitivity and fast analysis times. It also has a reduced need for support gases. It has been extensively tested at several super-sites and demonstrated excellent sensitivity, compared with other co-located integrated filter sampling systems

PI Konstantinos Eleftheriadis
Location 38.00, 23.82
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