Using Single Particle Measurements of Aerosols to Evaluate Candidate Materials for Solar Radiation Management

This 20-minute presentation from the Simons Foundation provides an update on research utilizing single-particle trapping and spectroscopy to evaluate optical properties of aerosols for solar radiation management (SRM). Explore wavelength-dependent measurements of complex refractive indices for stratospheric aerosol injection candidates, including sulfate, diamond, and metal-oxide aerosols under various humidity and temperature conditions. Learn how particle morphology, particularly core-shell structures, can enhance Bond albedo while reducing particle settling velocity. The talk also briefly covers a proposal investigating whether ultra-fine metal oxide nanoparticles from rocket fuels could be effective for SRM applications.