The cavity attenuated phase shift extinction monitor is an optical extinction spectrometer that measures aerosols, broadband scatterers and absorbers of light that interact with solar radiation and influence the Earth’s radiation balance. The CAPS PMex uses a visible-light-emitting diode (LED), a sampling cell incorporating two high-reflectivity mirrors centered at the wavelength of the LED, and a vacuum photodiode detector.
caps-pmex > Cavity Attenuated Phase Shift Extinction MonitorInstrument Type(s) > Baseline • Guest
|Facility Name||Start Date|
|Lamont, OK (Extended and Co-located with C1)||2016-11-15|
|Graciosa Island, Azores, Portugal||2014-02-18|
Brown H, X Liu, R Pokhrel, S Murphy, Z Lu, R Saleh, T Mielonen, H Kokkola, T Bergman, G Myhre, R Skeie, D Watson-Paris, P Stier, B Johnson, N Bellouin, M Schulz, V Vakkari, J Beukes, P van Zyl, S Liu, and D Chand. 2021. "Biomass burning aerosols in most climate models are too absorbing." Nature Communications, 12(1), 10.1038/s41467-020-20482-9.
Flynn C, D Chand, B Ermold, and A Koontz. 2020. The ARM Aerosol Optical Properties (AOP) Value-Added Product. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-211. 10.2172/1433185.
Kleinman L, A Sedlacek III, K Adachi, P Buseck, S Collier, M Dubey, A Hodshire, E Lewis, T Onasch, J Pierce, J Shilling, S Springston, J Wang, Q Zhang, S Zhou, and R Yokelson. 2020. "Rapid evolution of aerosol particles and their optical properties downwind of wildfires in the western US." Atmospheric Chemistry and Physics, 20(21), 10.5194/acp-20-13319-2020.
Forestieri S, T Helgestad, A Lambe, L Renbaum-Wolff, D Lack, P Massoli, E Cross, M Dubey, C Mazzoleni, J Olfert, A Sedlacek III, A Freedman, P Davidovits, T Onasch, and C Cappa. 2018. "Measurement and modeling of the multiwavelength optical properties of uncoated flame-generated soot." Atmospheric Chemistry and Physics, 18(16), 10.5194/acp-18-12141-2018.
Dubey M, A Aiken, LK Berg, A Freedman, and K Gorkowski. 2016. Two-Column Aerosol Project: Aerosol Light Extinction Measurements Field Campaign Report. Ed. by Robert Stafford, DOE ARM Climate Research Facility. DOE/SC-ARM-16-047. 10.2172/1324987.
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