Gigantic iceberg the size of Delaware that cracked off Antarctica last year has ...

Scientists tracking a massive iceberg that broke free from Antarctica’s Larsen C Ice Shelf last year say dense sea-ice cover has so far prevented it from drifting far out to sea.

An animation showing its movement over the last few months reveals how the trillion-plus ton Iceberg A-68 has shifted as it’s battered by ocean currents, tides, and winds in the Weddell Sea.

While the huge chunk of ice, estimated to be about the size of Delaware, has moved around some, the experts say its surroundings have kept it somewhat locked into place.

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An animation showing its movement over the last few months reveals how the trillion-plus ton Iceberg A-68 has shifted as it’s battered by ocean currents, tides, and winds in the Weddell Sea

Iceberg A-68 is the sixth largest iceberg on record since scientists began keeping track, and its separation from the ice shelf sparked fears about its future impacts on global sea levels.

Despite all the activity in the Weddell Sea, ‘its northern end has repeatedly been grounded in shallower water near Bawden Ice Rise,’ according to Project Midas researchers, who have been monitoring the iceberg over the last year.

‘These groundings led eventually to further pieces of the iceberg being shattered off in May 2018.

‘Whilst not quite large enough to be given labels themselves, the total area of icebergs lost from A-68 in May was the size of a small city.’

Scientists tracking a massive iceberg that broke free from Antarctica’s Larsen C Ice Shelf last year say dense sea-ice cover has so far prevented it from drifting far out to sea. It is shown above in July, 2018

Scientists tracking a massive iceberg that broke free from Antarctica’s Larsen C Ice Shelf last year say dense sea-ice cover has so far prevented it from drifting far out to sea. It is shown above in July, 2018

While the huge chunk of ice, estimated to be about the size of Delaware, has moved around some, the experts say its surroundings have kept it somewhat locked into place. Its position back in November, 2017 is shown

While the huge chunk of ice, estimated to be about the size of Delaware, has moved around some, the experts say its surroundings have kept it somewhat locked into place. Its position back in November, 2017 is shown

Earlier this year, scientists released the first-ever footage of 'A-68', a trillion-ton iceberg the size of Delaware that has broken off from Antarctica.

Stunning aerial clips capture the huge crack in Antarctica's Larsen C ice shelf that led to the third largest iceberg ever recorded breaking off from the continent last July.

When A-68 separated from Larsen C, it revealed an ocean hidden under the ice shelf for 120,000 years, and a team of scientists are now studying the region to uncover some of the hidden ecosystem's mysteries. 

Led by the Cambridge-based British Antarctic Survey (BAS), the group will study tiny animals, microbes and plankton on the seafloor to see how they cope with severe changes to their environment.

As part of preliminary research for the trip, the team have taken aerial footage of the iceberg to monitor how far it has drifted to sea - the very first video captured of the berg since it calved from Larsen C last year.

Marine biologist Dr Katrin Linse, the BAS researcher leading the mission, said: 'The calving of A-68 provides us with a unique opportunity study marine life as it responds to a dramatic environmental change.

'It's important we get there quickly before the undersea environment changes as sunlight enters the water and new species begin to colonise.

'We've put together a team with a wide range of scientific skills so that we can collect as much information as possible in a short time. It's very exciting.'

The scientists are travelling by ship to collect samples from the newly exposed seabed, which covers an area of around 2,250 square miles (5,800 square kilometres).

Scientists released the first-ever footage of 'A-68', a trillion-ton iceberg the size of Delaware that has broken off from Antarctica. Stunning aerial clips capture the huge crack (pictured) in Antarctica's Larsen C ice shelf that led to the third largest iceberg ever recorded breaking off from the continent last July

Scientists released the first-ever footage of 'A-68', a trillion-ton iceberg the size of Delaware that has broken off from Antarctica. Stunning aerial clips capture the huge crack (pictured) in Antarctica's Larsen C ice shelf that led to the third largest iceberg ever recorded breaking off from the continent last July

When A-68 separated from Larsen C, it revealed an ocean hidden under the ice shelf for 120,000 years, and a team of scientists are now studying the region to uncover some of the hidden ecosystem's mysteries

When A-68 separated from Larsen C, it revealed an ocean hidden under the ice shelf for 120,000 years, and a team of scientists are now studying the region to uncover some of the hidden ecosystem's mysteries

Led by the Cambridge-based British Antarctic Survey (BAS), the group will study tiny animals, microbes and plankton on the seafloor to see how they cope with severe changes to their environment. They have now captured the world's first footage of the A-68 iceberg

Led by the Cambridge-based British Antarctic Survey (BAS), the group will study tiny animals, microbes and plankton on the seafloor to see how they cope with severe changes to their environment. They have now captured the world's first footage of the A-68 iceberg

WHAT IS THE A-68 ICEBERG AND WHAT CAUSED IT TO BREAK AWAY FROM ANTARCTICA?

In July 2017, a huge crack in Antarctica's Larsen C ice shelf caused a trillion ton iceberg - the third biggest ever recorded - to break off from the icy southern continent.

The huge chunk of ice, dubbed iceberg A-68, measures 5,800 square kilometres (2,240 square miles), making it around the size of Delaware, or four times the area covered by Greater London.

Since A-68 broke away, it has remained unclear what will happen to the giant mass, with fears it could break up into pieces too small to track on satellite, and drift into shipping lanes.

Stunning new satellite images have revealed the movement of the massive iceberg that calved from the Larsen C ice shelf in July. The detailed images captured by instruments aboard NASA’s Landsat 8 show the widening gap between the main shelf and the ice berg, with a thin layer of loose, floating ice in between

In July 2017, a huge crack in Antarctica's Larsen C ice shelf caused a trillion ton iceberg - the third biggest ever recorded - to break off from the icy southern continent. These detailed images were captured by instruments aboard Nasa's Landsat 8 satellite

Experts have found that cracks are still growing on Larsen C, and if they continue to grow, it's possible that the ice shelf could collapse.

If all of Larsen C collapses, the ice it holds back might add another 4 inches (10 cm) to global sea levels over

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