Medical News

What amazed scientists after digging 300 meters in Antarctica

Lately, a workforce of scientists and researchers, all from New Zealand, started an expedition on the Ross ice floe the place, after having dug a sure time,

An astonishing discovery

The Ross Ice Shelf Expedition in query began two months in the past final November. That 12 months, the workforce boarded a ski-equipped Twin Otter plane, which took them to the massive slab of ice and snow floating within the ocean, precariously suspended off the coast. coastal areas of West Antarctica.

For his or her devices, the scientists determined to mount an enormous machine able to heating sizzling water and throwing it in a strong jet. Scientists then used it to make two holes of a depth of about 300 meters every.

From there, they determined to decrease their cameras within the holes, hoping to have the ability to see what’s going on under and the way. numerous ice resisted the warming temperature. By assessing the well being of the pack ice, scientists can assess the magnitude of the results of local weather change on the area.

Nevertheless, as quickly as they lowered the primary digicam, they have been greeted with an thrilling shock: a shiny layer. flat ice crystals, protecting the underside of the ice. Which means as a substitute of melting, the bottom of the ice incorporates seawater that also freezes.

This might clarify why this ice platform remains to be rather more steady than different floating platforms present in West Antarctica.

"Below the pack ice is a big quantity of ocean, it’s the quantity of the North Sea between England and Norway, and there’s nearly no measure there," Christina Hulbe, a glaciologist from the College of Otago in New Zealand, stated.

Ongoing Investigation

The invention of ice crystals allowed scientists to put in extra devices in areas and to arrange for what could be a 12 months of investigation on ocean currents and water temperatures below the ice.

This close-up of the fault opening on the pack ice of the Pine Island Glacier was captured by the Digital Mapping System (DMS) resembling a nadir on the NASA DC-Eight, which flew over the slot. October 26, 2011 as a part of NASA's IceBridge operation. Artistic Commons fonds NASA ICE