The Archives


photo of a sundog


Lisa Phillips (M.S.-ATM 2010) received a first place award in the amateur division from the Black Hills Chapter of the American Meteorological Society for this snapshot she took of sundogs. A sundog, technically known as a parhelion, is a halo phenomenon consisting of either of two colored luminous spots that appear at points 22 on both sides of the sun and at the same elevation as the sun. It is caused by refraction of sunlight by ice crystals.

(Posted 12/28/2010)