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A compact lightweight aerosol spectrometer probe (CLASP)

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Author: Hill, M.K. · Brooks, B.J. · Norris, S.J. · Smith, M.H. · Brooks, I.M. · Leeuw, G. de
Type:article
Date:2008
Institution: TNO Defensie en Veiligheid
Source:Journal of Atmospheric and Oceanic Technology, 11, 25, 1996-2006
Identifier: 241224
doi: doi:10.1175/2008JTECHA1051.1
Keywords: Aerosol fluxes · Aerosol spectrometers · Direct measurements · Eddy covariance techniques · Evolutionary development · High-temporal resolutions · Optical particle spectrometers · Particle concentrations · Performance characteristics · Atmospheric aerosols · Probes · Spectrometers · Spectrometry · aerosol · eddy covariance · instrumentation · particle size · performance assessment · spectrometer · temporal variation

Abstract

The Compact Lightweight Aerosol Spectrometer Probe (CLASP) is an optical particle spectrometer capable of measuring size-resolved particle concentrations in 16 user-defined size bins spanning diameters in the range 0.24 < D < 18.5 μm at a rate of 10 Hz. The combination of its compact nature and lightweight and robust build allows for deployment in environments and locations where the use of the larger, heavier, more traditional instrumentation would prove awkward or impossible. The high temporal resolution means it is particularly suited to direct measurements of aerosol fluxes via the eddy covariance technique. CLASP has been through an extended evolutionary development. This has resulted in an instrument whose performance characteristics are well established.