aeth > AethalometerInstrument Type(s) > Baseline • External • Guest

The aethalometer provides a real-time readout of the concentration of “black” or “elemental” carbon aerosol particles (BC or E) in an air stream. It measures the rate of change of optical transmission through a spot on a filter where aerosol is continuously collected and calculates the concentration of optically absorbing material in the sample. With a built-in reference check of the optical source and a mass flowmeter to monitor air flow rate, the aethalometer calculates the mean BC content of the sampled air stream and provides on-the-spot readout.

Primary Derived Measurements


  • Fixed
  • AMF1
  • AMF2
  • AMF3


Russell LM, D Lubin, I Silber, E Eloranta, J Muelmenstaedt, S Burrows, A Aiken, D Wang, M Petters, M Miller, A Ackerman, A Fridlind, M Witte, M Lebsock, D Painemal, R Chang, J Liggio, and M Wheeler. 2021. Eastern Pacific Cloud Aerosol Precipitation Experiment (EPCAPE) Science Plan. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-009.

Nascimento J, M Bela, B Meller, A Banducci, L Rizzo, A Vara-Vela, H Barbosa, H Gomes, S Rafee, M Franco, S Carbone, G Cirino, R Souza, S McKeen, and P Artaxo. 2021. "Aerosols from anthropogenic and biogenic sources and their interactions – modeling aerosol formation, optical properties, and impacts over the central Amazon basin." Atmospheric Chemistry and Physics, 21(9), 10.5194/acp-21-6755-2021.

Geerts B, G McFarquhar, L Xue, M Jensen, P Kollias, M Ovchinnikov, M Shupe, P DeMott, Y Wang, M Tjernstrom, P Field, S Abel, T Spengler, R Neggers, S Crewell, M Wendisch, and C Lupkes. 2021. Cold-Air Outbreaks in the Marine Boundary Layer Experiment (COMBLE) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-21-001.


Collaud Coen M, E Andrews, A Alastuey, T Arsov, J Backman, B Brem, N Bukowiecki, C Couret, K Eleftheriadis, H Flentje, M Fiebig, M Gysel-Beer, J Hand, A Hoffer, R Hooda, C Hueglin, W Joubert, M Keywood, J Kim, S Kim, C Labuschagne, N Lin, Y Lin, C Lund Myhre, K Luoma, H Lyamani, A Marinoni, O Mayol-Bracero, N Mihalopoulos, M Pandolfi, N Prats, A Prenni, J Putaud, L Ries, F Reisen, K Sellegri, S Sharma, P Sheridan, J Sherman, J Sun, G Titos, E Torres, T Tuch, R Weller, A Wiedensohler, P Zieger, and P Laj. 2020. "Multidecadal trend analysis of in situ aerosol radiative properties around the world." Atmospheric Chemistry and Physics, 20(14), 10.5194/acp-20-8867-2020.

Laing J, D Jaffe, and A Sedlacek, III. 2020. "Comparison of Filter-based Absorption Measurements of Biomass Burning Aerosol and Background Aerosol at the Mt. Bachelor Observatory." Aerosol and Air Quality Research, 20(4), 10.4209/aaqr.2019.06.0298.

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