Articles | Volume 10, issue 12
Atmos. Meas. Tech., 10, 5039–5062, 2017
Atmos. Meas. Tech., 10, 5039–5062, 2017

Research article 21 Dec 2017

Research article | 21 Dec 2017

On Aethalometer measurement uncertainties and an instrument correction factor for the Arctic

John Backman et al.

Data sets

Time series of aerosol light-absorption coefficients from Aethalometers at six Arctic stations between 2012 and 2014 J. Backman, L. Schmeisser, A. Virkkula, J. A. Ogren, E. Asmi, S. Starkweather, S. Sharma, K. Eleftheriadis, S. Vratolis, T. Uttal, P. Tunved, A. Jefferson, M. Bergin, A. Makshtas, and M. Fiebig

Short summary
Light absorption by aerosol particles is of climatic importance. A widely used means to measure aerosol light absorption is a filter-based measurement technique. In remote areas, such as the Arctic, filter-based instruments operate close to their detection limit. The study presents how a lower detection limit can be achieved for one such instrument, the Aethalometer. Additionally, the Aethalometer is compared to similar instruments, thus improving measurement inter-comparability in the Arctic.