Glaciers do not melt only at the top, but under the water, of which we are well aware, but due to the nature of this process, we are not, at least we were able to follow it exactly.
Scientists can not just go under the water to watch held up the melting of glaciers, so far we did not realize how fast this is happening – now thanks to robotic kayaks we have a much better understanding of this phenomenon and unfortunately are not good news . LeConte Glacier in Alaska, the glacier which is almost 32 km long river of ice, which is located in the mouth of the ocean, is the best proof. In the latest study, researchers wanted to focus on how and to what extent the ice melted in the meeting room with the sea, but the classical methods were too dangerous, due to the regular pieces of ice falling off.
So he sent a team to place robotic kayaks, which have been programmed to swim close to the ice cliffs and measure, hives fresh water flows into the ocean from the glacier. This unique type of melting has not been tested, due to the enormous risk of such studies, so the researchers had to rely on the estimated models. They assumed that the melting will be less than it is at the top of the glacier, which has contact with the air and lost large portions. Meanwhile, it turned out that we were wrong … completely wrong, because melting occurs under water up to 100 times faster!
– The kajakom discovered surprising symptom melting layer concentrated water from the melting of glaciers drop into the ocean disclose critical process hitherto ignored in the modeling and estimates the rate of melting – claims study author, Rebecca Jackson. The new studies are not the only ones who want to look under the surface of the water, because in the last year thanks to NASA radar satellites have discovered a huge cavity below the Thwaites Glacier in Antarctica, which previously contained 14 billion tons of ice. Other studies have indicated and that water from melted glaciers alters the composition of ocean water surface, which can speed up the pace of raising the water level.