Angularly-Resolved Elastic Light Scattering of Atmospheric Particles: Experimental Measurements and Model Verification
Abstract
Major Goals: In the grant proposal 64807-EV, five questions were outlined to be explored: Question 1. To what extent do inversion techniques using the spheroidal model accurately reproduce physical characteristics of atmospheric aerosol? Question 2. Is the agglomerate-debris particle model a more accurate representation of particle scattering? Question 3. How accurate are size measurements of single particles using our apparatus? Question 4. What features of the scattering patterns can be used to identify the sphericity of the interrogated particle? And how does the scattering phase function evolve with sphericity? Question 5. If the scattering patterns of individual particles are grouped by features in their scattering phase functions, what insights can be discerned about the physical properties of these particles that lead to the similarities in the scattering phase function? Accomplishments: This is the fourth year of the grant. It is a no cost extension year. In the first two years of the grant, Jason Zallie and Daniel Landgraf (both undergraduate researchers) performed research exploring the questions outlined in the grant proposal. Jason and Dan both graduated in the Spring of 2017. In the third year, two new undergraduate researchers joined the research effort: Gabe Seymour and Sequoyah Walters. Most of the results discussed below represents the research efforts of Gabe and Sequoyah from the summer of 2017. During the no cost extension year, we have focused on publishing our findings. We recently had one paper accepted into the Journal of Quantitative Spectroscopy and Radiative Transfer with minor edits. We are about to submit another paper.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 02, 2019
- Accession Number
- AD1080645
Entities
People
- Kevin Aptowicz
Organizations
- West Chester University of Pennsylvania