Abstract: One of the major challenges in atmospheric aerosol research is the quantification of aerosol optical properties at ambient relative humidities (RHs) and their attribution to natural and anthropogenic aerosol sources. As ...

Abstract: Results are presented from measurements made with a counterflow virtual impactor (CVI) in cirriform clouds containing crystals with dimensions typically less than 30 ?m. Independent measurements of crystal number concentration ...

Abstract: The purpose of this paper is to document the key literature references and to describe the design philosophy. the principles of the instrument, the various possible designs, calibration, systematic errors, applications to ...

Abstract: Modified integrating nephelometers are used to measure backward hemispheric scattering coefficients together with total scattering coefficients. These parameters yield information about the chemical nature of the aerosol ...

Abstract: A commercial battery-driven condensation particle counter (TSI-8020) was modified for use in a lightweight payload for tethered balloons to study new particle formation in the planetary boundary layer. After modifications, ...

Abstract: An airborne albedometer including a low-cost, precise, and fast sensor head horizontal stabilization system was developed to measure spectral down- and upward irradiances between 400- and 1000-nm wavelength. It is installed ...