uhsas: Ultra-High Sensitivity Aerosol Spectrometer

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

Related Publications

2019

McFarquhar G, R Marchand, C Bretherton, S Alexander, A Protat, S Siems, R Wood, and P DeMott. 2019. Measurements of Aerosols, Radiation, and Clouds over the Southern Ocean (MARCUS) Field Campaign Report. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-19-008.

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.

Bretherton C, I Mccoy, J Mohrmann, R Wood, V Ghate, A Gettelman, C Bardeen, B Albrecht, and P Zuidema. 2019. "Cloud, Aerosol and Boundary Layer Structure across the Northeast Pacific Stratocumulus-Cumulus Transition as observed during CSET." Monthly Weather Review, 147(6), 10.1175/MWR-D-18-0281.1.

2018

Zheng G, Y Wang, A Aiken, F Gallo, M Jensen, P Kollias, C Kuang, E Luke, S Springston, J Uin, R Wood, and J Wang. 2018. "Marine boundary layer aerosol in the eastern North Atlantic: seasonal variations and key controlling processes." Atmospheric Chemistry and Physics, 18(23), doi:10.5194/acp-18-17615-2018.
Research Highlight

Varble A, S Nesbitt, P Salio, E Zipser, S van den Heever, G McFarquhar, P DeMott, S Kreidenweis, M Jensen, P Kollias, D Romps, K Rasmussen, R Houze, Jr, R Leung, D Gochis, E Avila, CR Williams, and P Borque. 2018. Cloud, Aerosol, and Complex Terrain Interactions (CACTI) Science Plan. Ed. by Robert Stafford, ARM user facility. DOE/SC-ARM-18-027.

Ahlgrimm M, R Forbes, R Hogan, and I Sandu. 2018. "Understanding Global Model Systematic Shortwave Radiation Errors in Subtropical Marine Boundary Layer Cloud Regimes." Journal of Advances in Modeling Earth Systems, 10(8), 10.1029/2018MS001346.
Research Highlight

Kassianov E, L Berg, M Pekour, J Barnard, D Chand, J Comstock, C Flynn, A Sedlacek, J Shilling, H Telg, J Tomlinson, A Zelenyuk, and J Fast. 2018. "A Closure Study of Total Scattering Using Airborne In Situ Measurements from the Winter Phase of TCAP." Atmosphere, 9(6), 10.3390/atmos9060228.

Creamean J, M Maahn, G de Boer, A McComiskey, A Sedlacek, and Y Feng. 2018. "The influence of local oil exploration and regional wildfires on summer 2015 aerosol over the North Slope of Alaska." Atmospheric Chemistry and Physics, 18(2), 10.5194/acp-18-555-2018.

2017

Creamean JM. 2017. Exploratory Ice Nucleation Measurements at Oliktok Field Campaign Report. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-17-034.

Pennypacker S and R Wood. 2017. "A Case Study in Low Aerosol Number Concentrations Over the Eastern North Atlantic: Implications for Pristine Conditions in the Remote Marine Boundary Layer." Journal of Geophysical Research – Atmospheres, 122(22), doi:10.1002/2017JD027493.
Research Highlight


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