

A ghostly white bow shines from mountain fog on Carn Gorm, Scotland. This spectacular fogbow was photographed by Simon Caldwell ( site ) in February 1999. The matching IRIS simulation shows that the fog droplets were ~60 micron diameter. Photo ©Simon Caldwell. The Mie scattering simulation used a mean droplet diameter of 60 micron with a lognormal distribution of diameters having a standard deviation 12% to match the width of the primary fogbow and the position of the two supernumerary arcs inside the main bow.







