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
caps-pmex > Cavity Attenuated Phase Shift Extinction MonitorInstrument Type(s) > Baseline • Guest
Measurements
Locations
- Fixed
- AMF1
- AMF2
- AMF3
Active Instrument Locations
| Facility Name | Instrument Start Date |
|---|---|
| Lamont, OK (Extended and Co-located with C1) | 2016-11-15 |
| Graciosa Island, Azores, Portugal | 2014-02-18 |
| Oliktok Point, Alaska; AMF3 | 2016-08-06 |
Related Publications
2021
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.
Research Highlight
Uin J and S Smith. 2021. Southern Great Plains (SGP) Aerosol Observing System (AOS) Instrument Handbook. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-267.
2020
Uin J and S Smith. 2020. Eastern North Atlantic (ENA) Aerosol Observing System (AOS) Instrument Handbook. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-266.
Uin J and S Smith. 2020. Mobile Aerosol Observing System – Aerosols (MAOS-A) Instrument Handbook. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-263.
Uin J and S Smith. 2020. Third ARM Mobile Facility (AMF3) Aerosol Observing System (AOS) Instrument Handbook. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-265.
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.
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.
2018
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.
2016
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.
Collier S, S Zhou, T Onasch, D Jaffe, L Kleinman, A Sedlacek, N Briggs, J Hee, E Fortner, J Shilling, D Worsnop, R Yokelson, C Parworth, X Ge, J Xu, Z Butterfield, D Chand, M Dubey, M Pekour, S Springston, and Q Zhang. 2016. "Regional Influence of Aerosol Emissions from Wildfires Driven by Combustion Efficiency: Insights from the BBOP Campaign." Environmental Science & Technology, 50(16), 10.1021/acs.est.6b01617.
Research Highlight
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