Have yous e'er seen an inverted rainbow alongside its curved dorsum towards the solid pose down in addition to ends pointing upwardly , similar a grin inward the sky? Some people telephone telephone them “upside-down rainbows” , simply they are non inward fact , rainbows , because they aren’t formed past times low-cal refracting through raindrops or mist , equally inward rainbows. Instead they are caused past times low-cal refracting through H2O ice crystals inward high height clouds such equally cirrus or cirrostratus. The right term for this meteorological phenomenon is circumzenithal arc , in addition to they belong to the household unit of measurement of halos.
The circumzenithal arc is i of the brightest in addition to close colorful members of the halo family. Its colors ranges from purple on transcend to ruby at the bottom , simply are purer than those of a rainbow because in that place is much less overlap inward their formation.
Circumhorizontal Arc or Fire Rainbows.
Photo credit: Roger Sanderson/Flickr
Photo credit: Matthew Bednarik/Flickr
Photo credit: Matthew Bednarik/Flickr
Sources: BBC / Wikipedia / Atoptics