The Department of Atmospheric Propagation and Effects deals with laser applications in the free atmosphere. The focus here is on applications of laser radiation over long distances, such as optical ...

Atmospheric aerosols from human activity ... the semi-direct aerosol effect (Hansen et al. 1997). The net effect is uncertain (see Figure 3b) and highly depends on the vertical profile of BC ...

We are looking at another aspect of optics in the atmosphere and the “cool” stuff you can sometimes see in the winter ...