uhsas > Ultra-High Sensitivity Aerosol SpectrometerInstrument Type(s) > Baseline • Guest

The ultra-high-sensitivity aerosol spectrometer (UHSAS) is an optical-scattering, laser-based, aerosol particle spectrometer system for sizing particles in the 60 to 1000 nanometer (nm) range [1–3].

The instrument counts particles in up to 100 user-specified sizing bins. The instrument’s laser illuminates particles, which scatter light. The system captures the peak light signals that are generated. These signals are used for particle sizing, since the amount of light scattered correlates strongly with particle size.

The UHSAS is part of the aerosol observing system (AOS).

Measurements

Locations

  • Fixed
  • AMF1
  • AMF2
  • AMF3

Active Instrument Locations

Facility Name Instrument Start Date
Oliktok Point, Alaska; AMF3 2016-08-05

2020

Emerson E, A Hodshire, H DeBolt, K Bilsback, J Pierce, G McMeeking, and D Farmer. 2020. "Revisiting particle dry deposition and its role in radiative effect estimates." Proceedings of the National Academy of Sciences, , 202014761, 10.1073/pnas.2014761117.
Research Highlight

Shinozuka Y, P Saide, G Ferrada, S Burton, R Ferrare, S Doherty, H Gordon, K Longo, M Mallet, Y Feng, Q Wang, Y Cheng, A Dobracki, S Freitag, S Howell, S LeBlanc, C Flynn, M Segal-Rosenhaimer, K Pistone, J Podolske, E Stith, J Bennett, G Carmichael, A da Silva, R Govindaraju, R Leung, Y Zhang, L Pfister, J Ryoo, J Redemann, R Wood, and P Zuidema. 2020. "Modeling the smoky troposphere of the southeast Atlantic: a comparison to ORACLES airborne observations from September of 2016." Atmospheric Chemistry and Physics, 20(19), 10.5194/acp-20-11491-2020.

Watson T, A Aiken, Q Zhang, P Croteau, T Onasch, L Williams, and C Flynn. 2020. Second ARM Aerosol Chemical Speciation Monitor Users’ Meeting Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-249.

Zheng G, A Sedlacek, A Aiken, Y Feng, T Watson, S Raveh-Rubin, J Uin, E Lewis, and J Wang. 2020. "Long-range transported North American wildfire aerosols observed in marine boundary layer of eastern North Atlantic." Environment International, 139, 10.1016/j.envint.2020.105680.

Gallo F, J Uin, S Springston, J Wang, G Zheng, C Kuang, R Wood, E Azevedo, A McComiskey, F Mei, A Theisen, J Kyrouac, and A Aiken. 2020. "Identifying a regional aerosol baseline in the eastern North Atlantic using collocated measurements and a mathematical algorithm to mask high-submicron-number-concentration aerosol events." Atmospheric Chemistry and Physics, 20(12), 10.5194/acp-20-7553-2020.
Research Highlight

Pennypacker S, M Diamond, and R Wood. 2020. "Ultra-clean and smoky marine boundary layers frequently occur in the same season over the southeast Atlantic." Atmospheric Chemistry and Physics, 20(4), 10.5194/acp-20-2341-2020.

2019

Varble A, S Nesbitt, P Salio, E Avila, P Borque, P DeMott, G McFarquhar, S van den Heever, E Zipser, D Gochis, R Houze, M Jensen, P Kollias, S Kreidenweis, R Leung, K Rasmussen, D Romps, and C Williams. 2019. Cloud, Aerosol, and Complex Terrain Interactions (CACTI) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-19-028.

Williamson C, A Kupc, D Axisa, K Bilsback, T Bui, P Campuzano-Jost, M Dollner, K Froyd, A Hodshire, J Jimenez, J Kodros, G Luo, D Murphy, B Nault, E Ray, B Weinzierl, J Wilson, F Yu, P Yu, J Pierce, and C Brock. 2019. "A large source of cloud condensation nuclei from new particle formation in the tropics." Nature, 574(7778), 10.1038/s41586-019-1638-9.

Jensen M, E Bruning, D Collins, A Fridlind, P Kollias, C Kuang, D Rosenfeld, A Ryzhkov, A Varble, SD Brooks, S Collis, E Defer, J Fan, J Flynn, S Giangrande, R Griffin, J Hu, R Jackson, M Kumjian, T Logan, T Matsui, G McFarquhar, C Nowotarski, J Quaas, M Oue, R Sheesley, J Snyder, P Stier, S Usenko, S van den Heever, M van Lier Walqui, Y Wang, Y Xu, and G Zhang. 2019. Tracking Aerosol Convection Interactions ExpeRiment (TRACER) Science Plan. Ed. by Robert Stafford, DOE/SC-ARM-19-017.

Wang J, R Wood, M Jensen, E Azevedo, C Bretherton, D Chand, C Chiu, X Dong, J Fast, A Gettelman, S Ghan, S Giangrande, M Gilles, A Jefferson, P Kollias, C Kuang, A Laskin, E Lewis, X Liu, Y Liu, E Luke, A McComiskey, F Mei, M Miller, A Sedlacek, and R Shaw. 2019. Aerosol and Cloud Experiments in Eastern North Atlantic (ACE-ENA) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-19-012.


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