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NASA finds new iceberg 3 times the size of Manhattan in Antarctica

NASA has discovered a giant new iceberg three times the size of Manhattan in Antarctica. Named B-46 is estimated to…

NASA has discovered a giant new iceberg three times the size of Manhattan in Antarctica.

Named B-46 is estimated to measure 66 square kilometers, according to estimates from the US National Ice Center.

NASA’s Operation IceBridge flight discovered the giant mountain that hit the Pine Island Glacier in late October.

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 A close-up of the crack separating the Pine Island Glacier and iceberg B-46, seen on an Operation IceBridge flight on November 7, 2018

A close-up of the castle separating the Pine Island Glacier and iceberg B-46, seen on an Operation IceBridge flight on November 7, 2018

Wednesday’s aircraft took the IceBridge team over the Pine Island Glacier as part of the long-term campaign to gather year-on-year measurements of ocean ice, glaciers and critical areas of the ice sheet.

“When NASA’s DC-8 flew its predetermined flight pattern, the new iceberg was calved at the end of October,” spacecraft.

Ice shelves, floating isis areas that surround much of Antarctica, calving iceberg as part of the natural ice process that flows out to the sea.

Pine Island Glacier in Western Antarctica is known for spreading icebergs in the Amund Sea, but the frequency of such events seems to rise. Operations Land Imager (OLI) at Landsat 8 acquired the left picture of the new iceberg on November 7, 2018. For comparison, the second OLI image shows the same area on September 17, 2018, before a crack is rapidly propagated over the glacier and

 ] Wednesday's aircraft took the IceBridge team over the Pine Island Glacier as part of the long-term campaign to collect annual measurements of ocean ice, glaciers and critical areas of the earth's ice sheet.

Wednesday’s aircraft took the IceBridge team over the Pine Island Glacier as part of the long-term campaign to collect annual measurements of ocean ice, glaciers and critical areas of the earth’s icecream.

However, the giant mountain can not be long – NASA said “satellite images and the IceBridge flight showed that the great iceberg is already beginning to break up.”

Researchers are looking closely to see if the frequency of calf events changes over time.

The crack that would be B -46 was not recorded until the end of September 2018 and the iceberg broke away about a month later.

But at the end of 2016, IceBridge saw a crack that started over ~ about 22 miles wide of the Pine Island Glacier.

It took a year for the crack to be completely formed and the iceberg called B-44 to break in September 2017.

Pine Island has now calmed large icebergs 2013, 2015, 2017 and 2018.

Before this stretch, the glacier experienced major calving events every six years.

Pine Island and nearby Thwaites glaciers alone contribute about 1 millimeter per decade to global sea level rise, as their iceflow has accelerated in recent years, according to NASA research.

It comes a day after NASA revealed that a remarkable rectangular iceberg discovered in Antarctica was “born” far earlier that thought.

 New sea shapes were formed in a demolition created when the glacier B-46 broke out of the Pine Island glacier.

New sea shapes in a rift were created when the B-46 iceberg broke out of the Pine Island Glacier.

The rectangular isben rg was considered to be the new calf of Larsen C, which in July 2017 released the massive A68 iceberg, a piece of ice about the size of the state of Delaware.

“The mountain was so clean that it was reasonable to assume that it may have been very recently calved from Larsen C ishylla,” said NASA.

New satellite images, however, show that it has a much more interesting story that believed and actually had moved around the sea four months before it was discovered.

Antarctic icecrises

Global sea levels rise three times faster than quarter of a century ago due to global warming, a study shows.

Ice loss from Antarctica has increased sea level by almost 8mm (1/3 inch) since 1992, with two fifths of this rise only in the past five years.

The findings mean that people in coastal communities risk losing their homes and becoming so-called climate refugees

In one of the The most complete pictures of Antarctica ice sheet have so far changed an international team of 84 experts combined 24 satellite surveys to provide the results.

Study leader profes Sor Andrew Shepherd of Leeds University said: “We have long suspected that changes in the Earth’s climate will affect the polarizers. [19659002]

The image below, tweeted on November 9, 2018, by Stef Lhermitte at Delft University of Technology, shows the small, newly calcified icebergs. Rektangeln isberg – which was about 4 kilometers far by the time, is located just north of a curved mountain.

WHAT IS A TABLES OF ICEBERG?

Tabellisbergs are split by the edges of ice shelves in the same way as a fingernail that grows for a long time, stops cracking.

That’s why they have sharp edges.

The angled iceberg that created headlines at the end of October 2018 had a longer, tougher journey than originally thought.

Isberget was discovered on October 16, 2018, during a flight of Operation IceBridge -NASA’s long-term polaris flight investigation.

During this day’s investigation of glaciers and ice shelves along the northern Antarctica Peninsula, scientist Jeremy Harbeck discovered the convincing mountain.

The iceberg’s edges were extremely straight, but the two corners were “squared” on right angles.

Researchers used images from Landsat 8 and the European Space Agency Sentinel-1 to trace the mountain back to its origins.

 The original monolithic rectangular mountain was seen close to Larsen C ishylla and NASA experts believe that the sharp edges are evidence that it has recently broken the shelf

The original monolithic rectangular mountains were seen close to Larsen C ishylla and NASA experts consider that the sharp edges prove that it has recently been discontinued by the shelf

They found that it actually calved from the new shelter of the iceberg in early November 2017, just a few months after the A-68 broke away.

The Rektangeln Mountain began since a northern journey, navigating over the newly opened water between Larsen C ishylla and Isberg A-68.

Collision threats were everywhere: A-68 could break into the small mountains at any time, and smaller mountains could collide with each other.

REKTANGULAR BERGENS INVOLVED TIME

It calved from the new front of the ice shelf in early November 2017, just a few months after the A-68 broke away.

The Rektangeln Mountain began since a northern journey, navigating over the newly opened water between Larsen C ishylla and Isberg A-68.

Collision shot was everywhere: A-68 could break into the small mountains at any time, and smaller mountains could collide with each other.

The mountain crosses all the way north and through a narrow passage between the A-68 north tip and a rocky look near the ice shelf known as the Bawden Ice Rise. NASA / UMBC glaciologist Chris Shuman resembles this zone as a nutcracker.

 An area of ​​geometric ice mines is seen in the Landsat 8 image from October 14, 2018, two days before the IceBridge flight. The A-68 has repeatedly broken the appearance and caused ice cubes to splinter in pure geometric shapes. The one long rectangle mountain did not do it through undamaged; it broke into smaller pieces. The iceberg in Harbeck's photograph, circulated in the annotated Landsat 8 satellite image, appears closer to the shape of a trapezoidal form. The trapezoidal mountain is about 900 meters wide and 1500 meters long which is small compared to Delaware size A-68.

An area of ​​geometric ice cubes is seen in the Landsat 8 image from October 14, 2018, two days before the IceBridge flight. The A-68 has repeatedly broken the appearance and caused ice cubes to splinter in pure geometric shapes. The one long rectangle mountain did not do it through undamaged; it broke into smaller pieces. The iceberg in Harbeck’s photograph, circulated in the annotated Landsat 8 satellite image, appears closer to the shape of a trapezoidal form. The trapezoidal mountain is about 900 meters wide and 1500 meters long which is small compared to Delaware size A-68.

A-68 has repeatedly crushed the rise and caused the ice cubes to splint in clean-cut geometric shapes.

An area of ​​geometric ice mines is visible in the Landsat 8 image from October 14, 2018, two days before the IceBridge flight.

Once a long rectangle mountain did not harm it; it broke into smaller pieces.

The iceberg berry on Harbeck’s photograph, circulated in the annotated Landsat 8 satellite image, appears closer to the shape of a trapezoidal form.

The trapezoidal mountain is about 900 meters wide and 1500 meters long which is small compared to Delaware size A-68.

In November 2018 the iceberg had moved out of the rubble zone and into open water.

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The mountain crosses all the way north and through a narrow passage between the northern tip of A-68 and a rocky rock near the ice shelter called Bawden Ice Rise. NASA / UMBC glaciologist Chris Shuman resembles this zone as a nutcracker.

A-68 has repeatedly broken the appearance and caused the ice pieces to splinter in pure geometric shapes.

An area of ​​geometric ice mines is visible in the Landsat 8 image from October 14, 2018, two days before the IceBridge flight.

Once a long rectangle mountain did not harm it; it broke into smaller pieces.

The iceberg berry on Harbeck’s photograph, circulated in the annotated Landsat 8 satellite image, appears closer to the shape of a trapezoidal form.

The trapezoidal mountain is about 900 meters wide and 1500 meters long which is small compared to Delaware size A-68.

In November 2018 the iceberg had moved out of the rubble zone and into open water.

Shuman said, “Now it’s just another iceberg about to die.”

A second rectangular mountain, known as a “tabular” iceberg, was discovered outside the Antarctic peninsula, near the Larsen C ice shelf and close to the first.

It’s part of a large mountain range NASA experts have recently broken the shelf and said that the sharp angles and flat surfaces prove the break occurred very recently.

 Immediately past the original rectangular iceberg, visible behind the outboard engine, IceBridge saw another relatively rectangular mountain and the A68 iceberg in distance.

Just past the original rectangular iceberg, visible behind the outboard engine, IceBridge saw another relatively rectangular mountain and the A68 iceberg in distance. 19659008] The image was taken during an IceBridge flight with an airborne survey of the planet’s polarization, which provides a 3D image of the ice constituting the Arctic and Antarctica and provides important information on how it changes over time.

“I thought it was quite interesting: I often see icebergs with relatively straight edges, but I have not seen one before with two corners at the right angles like this one,” says IceBridge senior support researcher Jeremy Harbeck.

The rectangular iceberg appeared to be the new calf from Larsen C, who released the massive A68 iceberg in July 2017, a bit ice over the size of the state of Delaware.

In another photo (above), Harbeck has caught both the edge of the famous iceberg and a slightly smaller rectangular iceberg. This picture also captures the A68 at a distance.

“I was actually more interested in catching the A68 iceberg as we would fly over, but I thought this rectangular iceberg was visually interesting and quite kerosene, so on a lark, I only took a couple of pictures,” said Harbeck .

The flight originates from Punta Arenas, Chile, as part of a five-week long IceBridge deployment, which began October 10th and is scheduled to end November 18. [19659002] The system is NASA’s longest run police investigation.

During the survey, designed to assess ice-height changes on several glaciers that drain into the Larsen A, B and C depressions, IceBridge’s senior support scientist Jeremy Harbeck discovered a very angled ice-cream floating in the sea just outside Larsen C

The strange, angular mountains are known as an iceberg.

 The flight saw a "field" of large ice-boats lying between Antarctica Larsen C ishylla and A-68 isö descended by Larsen C last year , seen on a NASA operations IceBridge mission

The flight saw a “field” of large ice-boats lying between Antarctica Larsen C ishylla and A-68 iso, descended by Larsen C last year, as seen on a NASA operation IceBridge Mission

<img id = “i-9598bf0ff4711f7d” src = “https://i.dailymail.co .uk / 1s / 2018/11/08/20 / 5371624-6369059 -This_panorama_of_the_entire_first_tabular_iceberg_was_edited_tog-a-15_1541708658086.jpg “height =” 577 “width =” 957 “alt =” This panorama all over the first ice arc in the ice boat was edited from two pictures taken while they fly past the mountains [19659007] This panorama of the entire iceberg in the ice-processing was edited from two pictures taken while moving over the mountain

“An ice arch can be seen to the right, floating the sea ice just outside Larsen C ishylla” space agency said.

“The iceberg’s sharp angles and planar surface indicate that it is probably freshly calved from the ice shelves. & # 39;

In an interview with LiveScience, NASA scientist Kelly Brunt said that “icebows are rather like nails that burst

” What makes this little unusual is that it looks almost like a square, “she said.

She estimated her size about one mile wide.

Researchers have traced Larsen C carefully because a massive iceberg broke out and began spinning.

Experts had previously said that the giant area, estimated to be about Delaware size, was locked in place and said that ” probably stuck on the seabed”

“But now the A68 has started to turn north,” said Polar oceanographer Mark Brandon recently, who discovered the movement using temperature data collected by Suomi NPP satellite.


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