Articles | Volume 8, issue 11
Atmos. Meas. Tech., 8, 4755–4771, 2015
https://doi.org/10.5194/amt-8-4755-2015
Atmos. Meas. Tech., 8, 4755–4771, 2015
https://doi.org/10.5194/amt-8-4755-2015

Research article 11 Nov 2015

Research article | 11 Nov 2015

Spectral aerosol extinction (SpEx): a new instrument for in situ ambient aerosol extinction measurements across the UV/visible wavelength range

C. E. Jordan et al.

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Short summary
We describe a new instrument developed to observe ambient atmospheric aerosol extinction spectra from 300 to 700nm. Laboratory tests were performed to demonstrate that the instrument compares well with theoretical calculations over that spectral range, as well as with commercially available instrumentation measuring aerosol extinction at three visible wavelengths. The unique spectral data will be used to explore linkages between ambient aerosol optical properties, chemistry, and microphysics.