Partner: Stockholm University
PI: Assoc. Prof. Paul Zieger ([email protected])
Operator: Dr. Aiden Jönsson ([email protected])
The LOAC is a lightweight optical particle counter developed to be easily mountable to balloons, helikites, and aerial vehicles in order to make profiles of aerosol and cloud droplet size distributions. It can measure particles in 19 size bins between 0.2-100 microns and can give information about the types of particles being measured, since it measures scattering intensity at two different angles, yielding information about the shape. This instrument is useful to run in parallel with more advanced optical particle and cloud measurement instruments such as the FM120 in order to check for agreement.
References:
Renard, J. B., Dulac, F., Berthet, G., Lurton, T., Vignelles, D., Jégou, F., … & Daugeron, D. (2016). LOAC: a small aerosol optical counter/sizer for ground-based and balloon measurements of the size distribution and nature of atmospheric particles–Part 1: Principle of measurements and instrument evaluation. Atmospheric Measurement Techniques, 9(4), 1721-1742. https://amt.copernicus.org/articles/9/1721/2016/amt-9-1721-2016.html
Renard, J. B., Dulac, F., Berthet, G., Lurton, T., Vignelles, D., Jégou, F., … & Daugeron, D. (2016). LOAC: a small aerosol optical counter/sizer for ground-based and balloon measurements of the size distribution and nature of atmospheric particles–Part 2: First results from balloon and unmanned aerial vehicle flights. Atmospheric Measurement Techniques, 9(8), 3673-3686. https://amt.copernicus.org/articles/9/3673/2016/