Case Study
Aircraft Sampling - SEMS
Scanning Electrical Mobility Sizer

The Brechtel Scanning Electrical Mobility Sizer (SEMS, see Lopez-Yglesias et al. (2014) Aer. Sci. & Tech.) was used on-board the Environment Canada Convair 580 research aircraft to perform rapid 40 second size scans between 20 and 100 nm during vertical profiles to 9,500 feet. The SEMS performed very well with no down time over the three weeks of intensive flights performed from Resolute Bay, Nunavut (Alaska). The vertical profile data from the SEMS captured particle production and growth events that were a primary focus of the research.

Richard Leaitch, Ph.D.
Research Scientist, Science and Technology Branch
Environment Canada