Alternative Title
Greenland Ice Sheet Halos

Marie McLane captured these halos at Summit Station high up on the 1-2 mile thick ice sheet. The streaks and spots are the glints from individual diamond dust crystals. Millions combined to generate the halos.

Images ©Marie mcLane, shown with permission

Ice sheets

Halo forming crystals              Diamond dust

120° parhelia

Parry arcs

Is it a 46° halo or supralateral arc?

Parhelic circles

Scroll along the panorama to savour the white parhelic circle and at far left and right the bright 120 degree parhelia. Is there a hint of Lowitz activity at the 22° sundogs?