January 2018

Month

Pan Ice

Robin & I took a short hike up Cobb Brook yesterday afternoon. I was confident that we’d find some interesting ice formations among the stream’s numerous falls and cascades. We were not disappointed. The hilight was finding these ice discs or ice pans floating in the pool beneath one of the larger falls. These discs form as ice accumulates in slow moving eddy currents. The discs ranged in size here from around 16″ to over 3 feet.

Panasonic GX8, Lumix 14-140mm lens @ 14mm, ISO 800, f/8, 1/25″ exposure.

January 27, 2018 3

Hex Diamonds

hex-plate-ice-2 — Hexagonal plate ice crystals form between warm and cold air

Bundling up and marching off into the snow when it’s below zero has its rewards. These tiny and delicate hexagonal plate ice crystals formed along the bank of Fargo Brook where stream undercutting has exposed bare soils to the frigid air. When damp warmth filtering out of the ground meets the air the crystals form. These crystals were only a few millimeters wide so getting in close with a macro lens was necessary.

Nikon D600, Sigma 105mm macro lens, ISO 800, f/16, 1/160″ exposure.

January 3, 2018 4