Monday, June 26, 2017

Rate of global sea level rise jumps 50 per cent in two decades

The rate of global sea level rise has increased by 50 per cent in a little over increased   study from Australian and international researchers has found. 

The Greenland Ice Sheet contributed 5 per cent of
 the total sea level rise in 1993, by 2014 this figure
increased to about 25 per cent. 
The study, published by Nature Climate Change, used refined satellite estimates to show global sea level rise has increased from 2.2 millimetres each year in 1993, to 3.3 millimetres each year in 2014.

It was launched in an effort to understand why an accelerated rate of sea-level rise, between 1993 and 2014, had not been accurately represented in data from altimeters [satellite instruments used to measure height or altitude], despite accelerating contributions from ice sheets.

According to researchers from Qingdao National Laboratory for Marine Science and Technology, CSIRO Australia and the Universities of NSW, Tasmania and Arizona, the dramatic increase is thought to be mostly related to the melting of the Greenland ice sheet.

Read Lucy Cormack’s story in today’s Melbourne Age - “Rate of global sea level rise jumps 50 per cent in two decades.”

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