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New UK-U.S. joint Antarctic programme to study future sea level rise

New UK-U.S. joint Antarctic programme to study future sea level rise

India Blooms News Service | @indiablooms | 30 Apr 2018, 04:33 pm

London, Apr 30 (IBNS): A new UK-U.S. Antarctic research programme to improve the prediction of future sea-level rise is launched this week (Monday 30 April 2018) at British Antarctic Survey (BAS), Cambridge.

The £20 million (approx. $25 million) 5-year research collaboration, funded jointly by the UK Natural Environment Research Council (NERC) and the U.S. National Science Foundation (NSF), brings together over 100 polar scientists from leading UK and U.S. research organisations.

The International Thwaites Glacier Collaboration (ITGC) is the largest Antarctic research project undertaken by the two nations since the 1940s.  Their mission is to deploy teams of researchers, using a suite of technologies to investigate changes on the ice and in the ocean. Their goal is to investigate the implications of a major glacier collapse on future sea level rise.

Scientists know already that Thwaites Glacier, which is twice the size of the UK, accounts for around 4% of global sea level rise.  This contribution has doubled since the 1990s.  The big unknowns are whether the glacier is likely to collapse in response to environmental change; when this might happen; how big a collapse could be, and the potential impact on sea level rise.  The two nations recognise the importance and urgency in tackling these questions.

Director of BAS, Professor Dame Jane Francis says, “Both the UK and U.S. have considerable expertise in the fields of glaciology and oceanography.  We have spent decades working individually and collaboratively to understand Antarctica’s changing environment and the impact this will have on our planet.  Recent advances in satellite technologies, combined with state-of-the art technologies such as hot-water drilling through ice shelves and robotic underwater vehicles equipped with sensors, put our countries in a strong position to combine our scientific, technical and operational expertise for the benefit of society.  It’s a tremendously exciting time for science.”

The logistics of mounting a scientific campaign in one of the most remote places in Antarctica is a huge operational challenge.

The nearest permanently occupied research station to the Thwaites Glacier is more than 1600km away.

Both countries will co-ordinate their aircraft operations to transport glaciologists to their study sites on the ice, and deploy their ice-strengthened ships so that oceanographers and geophysicists can approach the glacier from the sea.

Dr. Kelly K. Falkner, Head of the U.S. Antarctic Program, says,

“The U.S. Antarctic Program has decades of experience in supporting large-scale international research initiatives–from building the world’s largest neutrino detector at the South Pole to supporting ice-core and sediment drilling projects that provided glimpses into the thawing and freezing of Antarctica over timescales of millions of years. I am fully confident that we will rise to the challenge of supporting these projects just as well.”

Professor David Vaughan is Director of Science at British Antarctic Survey and the lead scientific coordinator for the UK. 

He says, “Whilst Antarctica seems far away, what is happening there is already affecting sea-levels around the world.  UK and U.S. scientists have a track record of working well together on the ice, and together we have a unique opportunity to change our understanding of Antarctica.  We believe this programme will generate the information we need to help protect coastal cities, ecosystems and vulnerable communities around the world.”

Dr Ted Scambos, of the National Snow and Ice Data Center is the Lead U.S. scientific coordinator. 

He says, “For more than a decade, satellites have identified this area as a region of massive ice loss and rapid change.  But there are still many aspects of the ice and ocean that cannot be determined from space.  We need to go there, with a robust scientific plan of activity, and learn more about how this area is changing in detail, so we can reduce the uncertainty of what might happen in the future.”

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