Magee Aethalometer AE31-HS

Aethalometer

The Magee Aethalometer AE31-HS measures aerosol light absorption properties (though applying a different attenuation factor from the MAAP) in 7 different wavelengths: 370 nm (UV), 470 nm (blue), 520 nm (green), 590 nm (yellow), 660 (red), 880 nm (IR1m “standard Black Carbon”) and 950 nm (IR2).  The Aethalometer measures the rate of change of optical transmission through a spot on a filter on which aerosol is being continuously collected, and converted this to a calculation of the concentration of optically-absorbing material in the sampled air stream. At Chacaltaya data one data per wavelength is stored every five-minutes.

Contact person in CHC: Fernando Velarde

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