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UHSAS

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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

Aerosol concentration
Aerosol particle size distribution
Particle size distribution

Locations

  • Fixed
  • AMF1
  • AMF2
  • AMF3

Active Instrument Locations

Facility Name Instrument Start Date
Houston, TX; AMF1 (main site for TRACER) 2021-04-14

2021

Creamean J, G de Boer, H Telg, F Mei, D Dexheimer, M Shupe, A Solomon, and A McComiskey. 2021. "Assessing the vertical structure of Arctic aerosols using balloon-borne measurements." Atmospheric Chemistry and Physics, 21(3), 10.5194/acp-21-1737-2021.
Research Highlight

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.

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. Second ARM Mobile Facility (AMF2) Aerosol Observing System (AOS) Instrument Handbook. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-TR-264.

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.

Li H and A May. 2020. "An Exploratory Approach Using Regression and Machine Learning in the Analysis of Mass Absorption Cross Section of Black Carbon Aerosols: Model Development and Evaluation." Atmosphere, 11(11), 10.3390/atmos11111185.

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.

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.
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