toptics

A

Highlights

Atoptics Highlights   -   Optics Picture of the Day   -   OPOD    -   Atmospheric Optics  

Another cloudbow over England. This one by Sandy Robertson in Hertfordshire, January 19th.

Image ©Sandy Robertson, shown with permission

Cloudbows    Cloud Contrast Bow

Fogbows

Fogbow to Rainbow

IRIS

Unlike the previous Atoptics Highlight, this bow is visibly associated with cloud. It is broad and only mildly fringed with reds. That says the droplets making it were small and in the size rage of those of the clouds. The bow was from cloud droplets rather than falling virga.

Note the faint supernumerary inside the main bow.. Some simulations with IRIS would reveal the actual droplet diameter.