They examined the relationship between sea surface temperature and the infrared flux at the top of the atmosphere for clear sky conditions. (scienceofdoom.com)
A printable poster / demo mat to show how the amount of aerosols in the atmosphere affects sky conditions, one of the aspects citizen scientists report on via the app. (observer.globe.gov)
Twice each day, once during daytime and once at sunset, students observe sky color, visibility, and sky conditions over a one week period. (nasawavelength.org)