If you thought that our world above the seal level was strange, wait until you see what happens underneath the ice when winter strikes. Earlier this year the BBC Crew were in the Antarctic area and using Timelapse cameras they were able to record the salt water as it was excluded from the sea ice and it sunk to the bottom of the ocean floor. The temperature of this sinking brine, which was well below 0C, caused the water to freeze in an icy sheath around it. The icy phenomenon is caused by cold, sinking brine, which is more dense than the rest of the sea water. It forms a brinicle as it contacts warmer water below the surface.
Mr Miller, a photographer for BBC, set up the rig of timelapse equipment to capture the growing brinicle under the ice at Little Razorback Island, near Antarctica’s Ross Archipelago. The video posted above shows you exactly what happens under the ice. Everything that comes in contact with this “ice finger” instantly freezes. Via: BBC Nature