Greenland ice sheet contribution to sea level rise free
In the highstakes race against sea level rise, understanding what's causing the Greenland Ice Sheet to melt is critical. The problem isn't just rising temperatures: soot from ships, wildfires and distant power plants, as well as dust and a living carpet of microbes on the surface of the ice Melting land ice in the Arctic glaciers and the Greenland ice sheet contributes nearly a third of the water responsible for global sealevel rise, and Arctic warming is speeding up the rate at which its melting, according to a new study conducted by scientistsgreenland ice sheet contribution to sea level rise The change in the amount of ice in the ice sheets, known as the mass balance, is an important indicator that can document loss of ice. An increased rate of mass loss results in a faster rise in the global mean sea level. A net mass loss of 362. 5 billion tonnes corresponds to a 1 mm sea level equivalent.
Strikingly, the largest increase came from the Greenland ice sheet, as a result of both increased surface melting and increased flow of ice into the ocean. Greenlands contribution increased from about 0. 1mm per year (about 5 of the total rise in 1993) to 0. 85mm per year (about 25 in 2014). greenland ice sheet contribution to sea level rise Dec 06, 2018 Ice loss from Greenland is the single largest contributor to global sealevel rise, which is predicted to lead to inundation of lowlying islands and coastal cities around the world over the next The consequences of higher melt on the ice sheets mass budget and global sea level, however, depend on the fraction of melt water that actually escapes to the ocean 4, 11, 12. Thats 2. 96 million cubic kilometers of ice now covering land areasand its melting into the ocean. If the entire Greenland Ice Sheet thawed, Dutton says, it would raise sea levels by an average of seven meters. That would significantly flood coastal megacities such as Mumbai and Hong Kong.Rating: 4.40 / Views: 575