Navigation Links
Antarctic sea-level rising faster than global rate
Date:8/31/2014

A new study of satellite data from the last 19 years reveals that fresh water from melting glaciers has caused the sea-level around the coast of Antarctica to rise by 2cm more than the global average of 6cm.

Researchers at the University of Southampton detected the rapid rise in sea-level by studying satellite scans of a region that spans more than a million square kilometres.

The melting of the Antarctic ice sheet and the thinning of floating ice shelves has contributed an excess of around 350 gigatonnes of freshwater to the surrounding ocean. This has led to a reduction in the salinity of the surrounding oceans that has been corroborated by ship-based studies of the water.

"Freshwater is less dense than salt water and so in regions where an excess of freshwater has accumulated we expect a localised rise in sea level," says Craig Rye, lead author of the paper that has been published in the journal Nature Geoscience.

In addition to satellite observations, the researchers also conducted computer simulations of the effect of melting glaciers on the Antarctic Ocean. The results of the simulation closely mirrored the real-world picture presented by the satellite data.

"The computer model supports our theory that the sea-level rise we see in our satellite data is almost entirely caused by freshening (a reduction in the salinity of the water) from the melting of the ice sheet and its fringing ice shelves," says Craig.

"The interaction between air, sea and ice in these seas is central to the stability of the Antarctic Ice Sheet and global sea levels, as well as other environmental processes, such as the generation of Antarctic bottom water, which cools and ventilates much of the global ocean abyss."

The research was carried out in close collaboration with researchers at the National Oceanography Centre and the British Antarctic Survey.


'/>"/>

Contact: Steven Williams
s.williams@soton.ac.uk
44-238-059-2128
University of Southampton
Source:Eurekalert  

Page: 1

Related biology news :

1. Genetic survey of endangered Antarctic blue whales shows surprising diversity
2. Energy requirements make Antarctic fur seal pups vulnerable to climate change
3. Research on carbon-consuming life-forms in Antarctica published in JoVE
4. Antarctic albatross displays shift in breeding habits
5. Divide the Antarctic to protect native species, propose experts
6. Ancient global warming allowed greening of Antarctica
7. Emperor penguins threatened by Antarctic sea ice loss
8. Remote Siberian lake holds clues to Arctic -- and Antarctic -- climate change
9. GSA Bulletin presents studies in Antarctica, Italy, Mexico, Algeria, Mongolia, and more
10. The challenges facing the vulnerable Antarctic
11. Blue Ribbon Panel unveils findings on logistical improvements to support Antarctic science
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Antarctic sea-level rising faster than global rate
(Date:6/1/2016)... June 1, 2016 Favorable Government ... Administration and Criminal Identification to Boost Global Biometrics System ... released TechSci Research report, " Global Biometrics Market ... Forecast and Opportunities, 2011 - 2021", the global biometrics ... 2021, on account of growing security concerns across various ...
(Date:5/16/2016)... NEW YORK , May 16, 2016   ... authentication solutions, today announced the opening of an IoT ... to strengthen and expand the development of embedded ... provides an unprecedented level of convenience and security with ... to authenticate one,s identity aside from DNA. EyeLock,s platform ...
(Date:5/3/2016)... May 3, 2016  Neurotechnology, a provider of ... MegaMatcher Automated Biometric Identification System (ABIS) , a ... projects. MegaMatcher ABIS can process multiple complex biometric ... combination of fingerprint, face or iris biometrics. It ... and MegaMatcher Accelerator , which have ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... June 23, 2016 , ... In a new case ... Denmark detail how a patient who developed lymphedema after being treated for breast cancer ... could change the paradigm for dealing with this debilitating, frequent side effect of cancer ...
(Date:6/23/2016)... Andrew D Zelenetz ... Published recently in Oncology ... touchONCOLOGY, Andrew D Zelenetz , discusses the ... is placing an increasing burden on healthcare systems ... With the patents on many biologics expiring, interest ...
(Date:6/23/2016)... Pleasant Prairie, WI (PRWEB) , ... June 23, ... ... sciences consultancy focused on quality, regulatory and technical consulting, provides a free ... webinar is presented on July 13, 2016 at 12pm CT at no charge. ...
(Date:6/23/2016)... June 23, 2016 ReportsnReports.com ... report to its pharmaceuticals section with historic and ... and much more. Complete report on ... pages, profiling 15 companies and supported with 261 ... http://www.reportsnreports.com/reports/601420-global-cell-culture-media-industry-2016-market-research-report.html . The Global Cell ...
Breaking Biology Technology: