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

2018

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.

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

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

Fast J, L Berg, C Burleyson, J Fan, Z Feng, S Hagos, M Huang, A Guenther, A Laskin, M Ovchinnikov, J Shilling, M Shrivastava, H Xiao, R Zaveri, A Zelenyuk, C Kuang, J Wang, J Smith, D Turner, and P Gentine. 2017. Holistic Interactions of Shallow Clouds, Aerosols, and Land-Ecosystems (HI-SCALE) Field Campaign Report. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-17-014.

Bullard RL, C Kuang, J Uin, S Smith, and SR Springston. 2017. Aerosol Inlet Characterization Experiment Report. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-TR-191.

Reddington C, K Carslaw, P Stier, N Schutgens, H Coe, D Liu, J Allan, J Browse, K Pringle, L Lee, M Yoshioka, J Johnson, L Regayre, D Spracklen, G Mann, A Clarke, M Hermann, S Henning, H Wex, T Kristensen, W Leaitch, U Pöschl, D Rose, M Andreae, J Schmale, Y Kondo, N Oshima, J Schwarz, A Nenes, B Anderson, G Roberts, J Snider, C Leck, P Quinn, X Chi, A Ding, J Jimenez, and Q Zhang. 2017. "THE Global Aerosol Synthesis and Science Project (GASSP): Measurements and modelling to reduce uncertainty." Bulletin of the American Meteorological Society, 98(9), 10.1175/BAMS-D-15-00317.1.

Painemal D, J Chiu, P Minnis, C Yost, X Zhou, M Cadeddu, E Eloranta, E Lewis, R Ferrare, and P Kollias. 2017. "Aerosol and cloud microphysics covariability in the northeast Pacific boundary layer estimated with ship-based and satellite remote sensing observations." Journal of Geophysical Research: Atmospheres, 122(4), 10.1002/2016JD025771.
Research Highlight

2016

DeMott PJ, TC Hill, CS McCluskey, KA Prather, DB Collins, RC Sullivan, MJ Ruppel, RH Mason, VE Irish, T Lee, CY Hwang, TS Rhee, JR Snider, GR McMeeking, S Dhaniyala, ER Lewis, JJ Wentzell, J Abbatt, C Lee, CM Sultana, AP Ault, JL Axson, MD Martinez, I Venero, G Santos-Figueroa, MD Stokes, GB Deane, OL Mayol-Bracero, VH Grassian, TH Bertram, AK Bertram, BF Moffett, and GD Franc. 2016. "Sea spray aerosol as a unique source of ice nucleating particles." Proceedings of the National Academy of Sciences, 113(21), 10.1073/pnas.1514034112.

Uin J. 2016. Ultra-High-Sensitivity Aerosol Spectrometer Instrument Handbook. Ed. by Robert Stafford, DOE ARM Climate Research Facility. DOE/SC-ARM-TR-163.


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