Glaciers of melting causes sea level growth


Melting ice sheets in Greenland and Antarctus, as well as ice glaciers around the world, from sea level. Glaciers have lost 9 billion tons of ice since 1961, increasing the level of water by 27 millimeters, an international research team headed by Zurich University.

Glaciers have gained more than 9,000 billion tons (19,625,000,000,000 tons) from 1961 to 2016, leading to a global level of up to 27 mm in this period. The largest subsidiaries were Alazsa Glaciers, and then in the archeology of the glaciers of the Palaton and Glacier. Glaciers in the European Alps, the Caucasus and New Zealand also resulted in significant ice loss; However, due to relatively few glaciers they played only a minor role when it touched the level of global sea level.

Combination of field observation and satellite measurements

For the new research, the international research team is combined with glaciological field observations with geodetic satellite measurements. The latter on the surface of the earth indicates the data of ice thick changes at different times. Researchers have been able to change the changes in the ice ice on more than 19000 glaciers. This was also possible by the World Glacier Monitoring Service, thanks to a comprehensive database of observers' global networks that researchers introduced to their satellite analyzes. "By combining this two measurement method and using a new comprehensive database, we can assume how much ice has been lost from all mountainous regions since 1960," explains Michael Zemp, who conducted research. "Glaciological measurements in the field are annual fluctuations, and satellite data allows us to lose ice for a few years or decades."

Annually lost 335 billion tons of ice

Global glacial losses of ice glaciers over the past 30 years have significantly increased and now it is estimated at 335 billion tons of ice annually. This corresponds to an increase of almost 1 millimeter per year from sea level. "Globally, we lose three times the ice volume stored entirely in the European Alps – every year!" Says glaciologist Zemp. Glacier glaciers frost are therefore 25 to 30 percent of the global sea level growth. This ice lake of all glaciers is roughly the same as the massive loss of Greenland ice, and apparently the Antarctic.

Story source:

Materials are provided Zürich University. Note: The content can be edited by style and length.

.