Scientists Found the Deepest Land on Earth Hiding Beneath Antarctica's Ice (2024)

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A new mapping effort revealed critical new details of Antarctica's hidden land.

Scientists Found the Deepest Land on Earth Hiding Beneath Antarctica's Ice (1)

A new map of the mountains, valleys and canyons hidden under Antarctica's ice has revealed the deepest land on Earth, and will help forecast future ice loss.

The frozen southern continent can look pretty flat and featureless from above. But beneath the ice pack that's accumulated over the eons, there's an ancient continent, as textured as any other. And that texture turns out to be very important for predicting how and when ice will flow and which regions of ice are most vulnerable in a warming world. The new NASA map, called BedMachine Antarctica, mixes ice movement measurements, seismic measurements, radar and other data points to create the most detailed picture yet of Antarctica's hidden features.

Related: 50 Amazing Facts About Antarctica

"Using BedMachine to zoom into particular sectors of Antarctica, you find essential details, such as bumps and hollows beneath the ice that may accelerate, slow down or even stop the retreat of glaciers," Mathieu Morlighem, an Earth system scientist at the University of California, Irvine and the lead author of a new paper about the map, said in a statement.

The new map, published Dec. 12 in the journal Nature Geoscience (opens in new tab), reveals previously unknown topographical features that shape ice flow on the frozen continent.

The previously unknown features have "major implications for glacier response to climate change," the authors wrote. "For example, glaciers flowing across the Transantarctic Mountains are protected by broad, stabilizing ridges."

Understanding how ice flows in Antarctica becomes increasingly important as Earth warms. If all of Antarctica's ice were to melt, it would raise global sea levels by 200 feet (60 meters), according to the National Snow and Ice Data Center. That isn't likely anytime soon, but even if small fractions of the continent were to melt, it would have devastating global effects.

Included in the data is evidence for the deepest canyon on planet Earth. By studying how much ice flows through a particular, narrow region known as the Denman trough each year, the researchers realized it must dive at least 11,000 feet (3,500 meters) below sea level to accommodate all the frozen water volume. That's far deeper than the Dead Sea, the lowest exposed region of land, which sits 432 meters (1,419 feet) below sea level, according to the Israel Oceanographic and Limnological Research center.

The map offers a wealth of new information on precisely which regions of the continent's ice are at most risk of sliding into the ocean in the coming decades and centuries, the authors wrote.

Originally published on Live Science.

Scientists Found the Deepest Land on Earth Hiding Beneath Antarctica's Ice (2)

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Staff Writer

Rafi joined Live Science in 2017. He has a bachelor's degree in journalism from Northwestern University’s Medill School of journalism. You can find his past science reporting at Inverse, Business Insider and Popular Science, and his past photojournalism on the Flash90 wire service and in the pages of The Courier Post of southern New Jersey.

  • ty2010

    admin said:

    A new mapping effort revealed critical new details of Antarctica's hidden land.

    Scientists Found the Deepest Land on Earth Hiding Beneath Antarctica's Ice : Read more

    My main issue is with the 200 ft rise figure. If you took the entire land area of 5.5m sq mi, 8200 ft average elevation, down to sea level and spread it over the entire ocean of 140m sq mi it only comes to 145 ft. Sure there's going to be some additional from isostatic rebound but there's going to be sinking globally as well, this isn't even counting the expanding of the ocean's borders with the sea level rise. The isostatic figure shouldn't be included anyway as Canada is still recovering from the last ice age. Aside from some damming effects for land based ice, sea ice is a wash because it's already displacing it's volume in the ocean.

    Reply

  • Rathgic

    An example of how irrational the current science community can be.

    All ice that is currently below the current sea level is irrelevant in determining what happens to the sea level lF IT ALL MELTED.

    Why, as solid ice ..... if it is now below sea level, then if it melts it takes up no more room that it presently is ALREADY DISPLACING.

    Reply

  • sqlblindman

    Rathgic said:

    An example of how irrational the current science community can be.

    All ice that is currently below the current sea level is irrelevant in determining what happens to the sea level lF IT ALL MELTED.

    Why, as solid ice ..... if it is now below sea level, then if it melts it takes up no more room that it presently is ALREADY DISPLACING.

    An example of how ignorant those outside the science community, who think they actually know anything about science can be.
    Ice only displaces it's weight in water when it is FLOATING. So an ice cube melting in a cup of water does not change the level of the water. But an ice cube melting on a table ABSOLUTELY changes the level of the water on the table.
    This ice in this instance is not floating, but is sitting on a land mass. When it melts, sea level with rise.

    Now you know.

    Reply

  • Lilkittygirl

    Rathgic said:

    An example of how irrational the current science community can be.

    All ice that is currently below the current sea level is irrelevant in determining what happens to the sea level lF IT ALL MELTED.

    Why, as solid ice ..... if it is now below sea level, then if it melts it takes up no more room that it presently is ALREADY DISPLACING.

    I'm gonna break it down a little for you. A lot of the ice that is in Antarctica is not actually under the water. It sits on top of a massive landmass so it isn't displacing anything currently. Even being below sea level does not actually mean there is water displacement happening, canyons have no water in them for example or very little. (ex. Grand Canyon). So as they stated, if the ice were to melt it would significantly impacts the ocean's water levels due to the majority of ice being on top of land and not sitting floating in water.

    Reply

  • ty2010

    Lilkittygirl said:

    I'm gonna break it down a little for you. A lot of the ice that is in Antarctica is not actually under the water. It sits on top of a massive landmass so it isn't displacing anything currently. Even being below sea level does not actually mean there is water displacement happening, canyons have no water in them for example or very little. (ex. Grand Canyon). So as they stated, if the ice were to melt it would significantly impacts the ocean's water levels due to the majority of ice being on top of land and not sitting floating in water.

    See map, those canyons are not blocked from the ocean and will fill with water.

    Reply

  • ty2010

    sqlblindman said:

    An example of how ignorant those outside the science community, who think they actually know anything about science can be.
    Ice only displaces it's weight in water when it is FLOATING. So an ice cube melting in a cup of water does not change the level of the water. But an ice cube melting on a table ABSOLUTELY changes the level of the water on the table.
    This ice in this instance is not floating, but is sitting on a land mass. When it melts, sea level with rise.

    Now you know.

    The land it's sitting on is below sea level, that portion of the ice below sea level will occupy 9/10 the volume when melted, claims aren't to total ice volume on sub sea level land.

    Reply

  • physicitpeks

    Umm, let's say that Antarctica was a land mass where all the snow/ice "covering it" was below sea level and it came up to exactly sea level (like some god had taken a big knife and it cut if off there). Now let's say all of that snow/ice melts. Will the the surrounding ocean level rise, fall, or stay the same? Since snow/ice is just frozen water, and solid water is less dense than liquid water (that's why it rises to the surface), it seems to me that the snow/ice that turned into water would take up less room (would be more dense) than the snow/ice. Therefore, the ocean level would go down slightly. It would not be enough to counteract all the snow/ice that is currently covering the land mass of Antarctica if that were all to melt and flow into and thus raise the sea level. But be that as it may, the original poster is kind of correct when he stated:

    "All ice that is currently below the current sea level is irrelevant in determining what happens to the sea level lF IT ALL MELTED." <= It isn't totally irrelevant, since the melting of ice below sea level would contribute to lowering sea level

    "Why, as solid ice ..... if it is now below sea level, then if it melts it takes up no more room that it presently is ALREADY DISPLACING." <= that is a correct statement, in fact it actually will take up less room

    "

    An example of how irrational the current science community can be."
    I don't know that scientist don't know this. I suspect that good scientists do. So I don't really agree with the posters initial statement, unless it turns out the current science community doesn't realize this...

    Reply

  • sqlblindman

    ty2010 said:

    The land it's sitting on is below sea level, that portion of the ice below sea level will occupy 9/10 the volume when melted, claims aren't to total ice volume on sub sea level land.

    Of course the land it is sitting on is below sea level.
    You think the scientists aren't aware of that, or of what proportion are above and below the surface?

    Dunning, meet Kruger.

    Reply

  • ty2010

    Behavioral patterns are sometimes worse as they resist compensation across other behaviors.

    Reply

  • ty2010

    "...
    All ice that is currently below the current sea level is irrelevant in determining what happens to the sea level lF IT ALL MELTED.

    Why, as solid ice ..... if it is now below sea level, then if it melts it takes up no more room that it presently is ALREADY DISPLACING.
    "
    > talks about ice below sea level
    > you go on to argue about floating displacement

    The portion below sea level is displacement of sea water regardless if it is floating or not, unless an inland valley that's blocked off from the ocean is being discussed. In such an environment that would turn into a fresh water lake unless there's volcanic activity to dry.

    Reply

Scientists Found the Deepest Land on Earth Hiding Beneath Antarctica's Ice (2024)

FAQs

What was found in Antarctica under the ice? ›

Initially, all they saw was blurry flecks that looked like detritus floating around. A quick camera-focusing showed that it was actually living crustaceans, reports Live Science.

Is there land beneath the ice in Antarctica? ›

The Antarctic continent lies on a large landmass. Underneath that smooth ice sheet there are mountains and valleys. The surface of the Antarctic Ice Sheet is up to 4000 m high, and in places the ice is 4000 m deep, but the Gamburtsev Mountain range is up to 2,700 m high and lies underneath the East Antarctic Ice Sheet.

Is there a hidden world in Antarctica? ›

A “hidden world” discovered under the ice in Antarctica

He and other New Zealand scientists have just discovered an underwater ecosystem 500 metres under the Antarctic ice, in an estuary hundreds of kilometres from the edge of the Ross Ice Shelf, the largest ice barrier on the white continent.

What is the deepest ice in Antarctica? ›

At its thickest point the ice sheet is 4,776 meters deep. It averages 2,160 meters thick, making Antarctica the highest continent. This ice is 90 percent of all the world's ice and 70 percent of all the world's fresh water.

What is inside Antarctica? ›

More than 98 percent of Antarctica is covered with ice, this contains about 70 percent of the world's fresh water. The thick ice cover makes it the highest of all continents, with an average elevation of about 2300 m (about 7500 ft).

Was a body found in Antarctica? ›

They are the oldest human remains ever found in Antarctica. The bones were discovered on the beach in the 1980s. Chilean researchers found that they belonged to a woman who died when she was about 21 years old.

How much land is under Antarctica? ›

The present Antarctic ice sheet accounts for 90 percent of Earth's total ice volume and 70 percent of its fresh water.
...
Geography of Antarctica.
ContinentAntarctica
AreaRanked 2nd (unofficially)
• Total14,000,000 km2 (5,400,000 sq mi)
• Land98%
• Water2%
13 more rows

Can you visit Antarctica? ›

Yes, you can visit Antarctica!

Although Antarctica is the most remote continent on earth—more than 1,000 km from the nearest neighboring continent—you can actually visit it, and enjoy the voyage at your own pace and preference.

Can you live in Antarctica? ›

Antarctica is the only continent with no permanent human habitation. There are, however, permanent human settlements, where scientists and support staff live for part of the year on a rotating basis.

What is the hole in Antarctica? ›

A few years ago, a giant hole opened up in the Antarctic sea ice, capturing attention around the world. Not since the 1970s had such a chasm appeared in the mid-ocean ice of the Weddell Sea. Scientists showed in previous research that ocean processes and cyclones contributed to the hole, called a polynya.

Why no one can go to Antarctica? ›

Due to harsh conditions, extreme weather and no permanent population on the continent there are no regular passenger flights to Antarctica. Most flights transport research personnel and supply the bases. The lack of infrastructure makes it difficult to recover a stranded aircraft in case of an emergency.

Why can't planes fly over Antarctica? ›

The rough weather conditions and low visibility make it extremely difficult to fly and land a plane over the continent. It is technically possible to fly to Antarctica, but there are very few flights that take the risk of going there.

Is Antarctica losing ice? ›

Antarctica is losing ice mass (melting) at an average rate of about 150 billion tons per year, and Greenland is losing about 280 billion tons per year, adding to sea level rise.

How old is the deepest ice in Antarctica? ›

The deepest ice core records come from Antarctica and Greenland, where the very deepest ice cores extend to 3 kilometers (over two miles) in depth. The oldest continuous ice core records extend to 130,000 years in Greenland, and 800,000 years in Antarctica.

When did Antarctica freeze? ›

Antarctica hasn't always been covered with ice – the continent lay over the south pole without freezing over for almost 100 million years. Then, about 34 million years ago, a dramatic shift in climate happened at the boundary between the Eocene and Oligocene epochs.

Is Antarctica big? ›

Is Antarctica all snow? ›

Antarctica is a cold desert, with snowfall equivalent to only 150mm of water each year. This snow builds up gradually and ice flows towards the coast as huge glaciers. In many places, these extend out over the sea as massive ice shelves. Only about 0.4% of the surface of Antarctica is free of snow and ice.

Who was murdered in Antarctica? ›

The two victims were Tony Beyer and Joe Stermer. Both of them required stitches. FBI agents from the United States were sent to McMurdo Station to investigate and make an arrest.

Can humans move Antarctica? ›

The people who travel to or live in Antarctica fall into two main groups, those who live and work on scientific research stations or bases, and tourists. No-one lives in Antarctica indefinitely in the way that they do in the rest of the world. It has no commercial industries, no towns or cities, no permanent residents.

Can humans breathe in Antarctica? ›

The air is so cold that it's dangerous to breathe it directly. Instead, those who do brave the elements here often breathe through snorkels that pass through their jackets, allowing the body to warm the air. “The snow makes a tremendous amount of noise when you walk on it,” said Scambos.

What is 98% of Antarctica covered? ›

About 98% of Antarctica is covered by the Antarctic ice sheet, a sheet of ice averaging at least 1.6 km thick. The continent has about 90% of the world's ice (and therefore about 70% of the world's fresh water). If all this ice were melted, sea levels would rise about 60 m.

Can I buy part of Antarctica? ›

Antarctica is the only place on the planet where the land isn't officially owned by anyone. A few countries have made land claims (for more about this, see the information box on the next page), but those claims aren't officially recognized and don't cover the entire continent.

Can I land on Antarctica? ›

You can get to Antarctica by boat or plane. Sailing the Drake Passage from the tip of South America to the Antarctic Peninsula takes 48 hours. Flying to Antarctica takes 2 hours. Approximately 54,000 visitors make the journey each year, with around 50 expedition vessels sailing Antarctic waters each season.

How much is a trip to Antarctica? ›

Our experts share their inside knowledge and money-saving tips to help you answer the question “How much does it cost to go to Antarctica?” The average Antarctica cruise cost is about $8,000 per person. The least expensive trips to Antarctica start at under $5,000. Luxury voyages can exceed $15,000 per person.

Can you take a rock from Antarctica? ›

However, in Antarctica, taking anything is banned. This includes rocks, feathers, bones, eggs and any kind of biological material including traces of soil. Taking anything man-made is also completely banned, as some might actually be research equipment.

Is anything legal in Antarctica? ›

You may wonder how, if there is no Antarctic laws, it is possible for people to commit crime in Antarctica. Whilst crime is pretty rare, it is still possible to break the law as, under the Antarctic Treaty, people in Antarctica are subject to the laws of their own country.

Can you be born in Antarctica? ›

Eleven babies have been born in Antarctica, and none of them died as infants. Antarctica therefore has the lowest infant mortality rate of any continent: 0%. What's crazier is why the babies were born there in the first place. These weren't unplanned births.

Does Antarctica have a flag? ›

There is no official flag of Antarctica since it is not a country nor governed by any authority. However, there is a caveat to that as Antarctica is a de facto condominium, governed by parties to the Antarctic Treaty System that have consulting status.

What language is Antarctica? ›

The most commonly spoken language of Antarctica is Russian, which happens to be the official language of Bellingsgauzenia, New Devon, and Ognia. English is also one of the most widespread languages spoken. You can find English spoken in the Balleny Islands, New South Greenland, Eduarda, etc.

Can you drill in Antarctica? ›

Ice core drilling in Antarctica to discover environment evolution over the last 1,5 million years. The first ice core drilling campaign of Beyond Epica-Oldest Ice has been successfully completed at the remote Little Dome C site in Antarctica – one of the most extreme places on Earth.

Who is buried in Antarctica? ›

While Sir Ernest Shackleton is often heralded as the hero of polar exploration, he had many contemporaries, among them British naval captain Robert Falcon Scott, who along with four of his men is still buried under the snows of the Antarctic.

Can you drill for oil in Antarctica? ›

In the Antarctic region, while the Madrid Protocol (Environmental Protocol) bans all mining and drilling for petroleum in the area south of 60° South latitude, there has been some hydrocarbon exploration in offshore areas further north that are still affected by icebergs.

How do I get permission to go to Antarctica? ›

For US citizens you will need to complete a DS-4131 ADVANCE NOTIFICATION FORM – TOURIST AND OTHER NON-GOVERNMENTAL ACTIVITIES IN THE ANTARCTIC TREATY AREA and then submit this to the Department of State's Office of Ocean and Polar Affairs. You will need to do this at least 3 months in advance of your intended visit.

What happens if you fly over Antarctica? ›

These magnetic fields interfere with aircraft magnetic navigational tools. Antarctica's isolated nature further makes it difficult for planes to communicate with Air Traffic Control (ATC), further rendering navigation difficult.

Why is there no people living in Antarctica? ›

Due to its remoteness, inhospitable weather conditions and lack of natural land bridges connecting it to other continents, Antarctica has spent the last 35 million years in relative silence and seclusion. Prior to its discovery in 1820, no humans had ever set eyes on this icy continent.

Has a plane ever crashed in Antarctica? ›

Air New Zealand had been operating scheduled Antarctic sightseeing flights since 1977.
...
Mount Erebus disaster.
Accident
Date28 November 1979
SummaryControlled flight into terrain
SiteMount Erebus, Antarctica 77°25′30″S 167°27′30″E
Aircraft
14 more rows

Can you fly over a hurricane? ›

Hurricanes differ from thunderstorms in that they often occur much closer to the ground. For this reason, planes are sometimes able to fly over hurricanes rather than being redirected around them. While it is possible for planes to fly through the eye of a hurricane, this is only ever done for scientific research.

Why is Antarctica so cold? ›

Both the Arctic (North Pole) and the Antarctic (South Pole) are very cold because they get very little direct sunlight. The Sun is always low on the horizon, even in the middle of summer. In winter, the Sun is so far below the horizon that it doesn't come up at all for months at a time.

What happens if Antarctica melts? ›

If all the ice covering Antarctica , Greenland, and in mountain glaciers around the world were to melt, sea level would rise about 70 meters (230 feet). The ocean would cover all the coastal cities. And land area would shrink significantly. But many cities, such as Denver, would survive.

Is ice age still possible? ›

Since today's Earth has a continent over the South Pole and an almost land-locked ocean over the North Pole, geologists believe that Earth will continue to experience glacial periods in the geologically near future.

Is ice blue older? ›

When glacial ice first freezes, it is filled with air bubbles. As that ice gets buried and squashed underneath younger ice on top, the older ice starts to take on a blue tinge. As the ice grows denser, the bubbles become smaller and smaller.

Can we save Antarctica? ›

But Antarctica is a natural treasure that can still be saved. This white continent is a paradise for scientists and wildlife, but its harsh conditions make it uninhabitable for humans. However, not even the most remote place on earth has been spared from man-made damage.

Is Antarctica still moving? ›

It is Earth's fifth-largest tectonic plate. The Antarctic Plate's movement is estimated to be at least 1 cm (0.4 in) per year towards the Atlantic Ocean.

What if all Antarctica ice melted? ›

If all the Antarctic ice melted it would raise the average sea level by about 70 m (230 feet) worldwide. This would change the map of the world as we know it as all coastlines would flood including the loss of all coastal cities in the world.

How deep is the hole in Antarctica? ›

The deepest point on continental Earth has been identified in East Antarctica, under Denman Glacier. This ice-filled canyon reaches 3.5km (11,500ft) below sea level.

How did Antarctica get its ice? ›

The Antarctic Ice Sheet began as a series of small glaciers, much like the ones we see in high alpine regions today. It started to form between 34 and 35 million years ago. At that time, South America and Tasmania, which had been connected to the Antarctica landmass for millions of years, started drifting to the north.

Why is ice blue? ›

Glacier ice is blue because the red (long wavelengths) part of white light is absorbed by ice and the blue (short wavelengths) light is transmitted and scattered. The longer the path light travels in ice, the more blue it appears.

What was found on the Antarctic ice in 1984? ›

Allan Hills 84001 (ALH84001) is a fragment of a Martian meteorite that was found in the Allan Hills in Antarctica on December 27, 1984, by a team of American meteorite hunters from the ANSMET project.
...
Allan Hills 84001
Found date1984
TKW1930.9 g
Related media on Wikimedia Commons
11 more rows

What did they find in the lake in Antarctica? ›

There were not only live microbes, but also the bodies of dead crustaceans and a tardigrade. "It's the first time anything like that's been seen," Priscu said. "The first things we did see were bacteria, a full living ecosystem," Priscu said.

What creatures have been found in Antarctica? ›

From albatross to leopard seals to the blue whale, these cold seas brim with life.
  • Albatross. Distinguished by its atypical combination of a white head and black brow, the black-browed albatross is a stunning sight. ...
  • Bugs. ...
  • Orcas. ...
  • Leopard seal. ...
  • Blue whales. ...
  • Krill.

What is the oldest ice in Antarctica? ›

How old is glacier ice?
  • The age of the oldest glacier ice in Antarctica may approach 1,000,000 years old.
  • The age of the oldest glacier ice in Greenland is more than 100,000 years old.
  • The age of the oldest Alaskan glacier ice ever recovered (from a basin between Mt. Bona and Mt. Churchill) is about 30,000 years old.

What was found recently in Antarctica? ›

In June 2022, an underwater ecosystem was discovered in a river beneath the Larsen Ice Shelf in Antarctica. This discovery was made by New Zealand scientists when they drilled through the shelf and filmed the icy water below. The video footage revealed shrimp-like creatures swimming about in their underwater habitat.

What was discovered in Antarctica in 2007? ›

February 26, 2007

An expedition to an area of seabed recently exposed by melting ice in Antarctica has discovered several previously unknown species of marine life, including deep sea lilies, gelatinous sea squirts, glass sponges, amphipod crustaceans, and orange starfish.

What is buried in Antarctica? ›

One of these terra incognita is the land beneath Antarctica's ice sheets. Buried under kilometres of ice is a fascinating realm of canyons, waterways and lakes, which is only now being mapped in detail. There are more than 400 known lakes in this harsh environment, and more are being discovered as technology advances.

Is there a blood like lake in Antarctica? ›

The subglacial lake that feeds Blood Falls is trapped beneath a quarter mile of ice. But in addition to being cut off from the rest of the continent, the water that feeds Blood Falls is completely cut off from the atmosphere—it has never seen sunlight and is completely devoid of oxygen.

What is the red water in Antarctica? ›

Known as the Blood Falls, this unique phenomenon was first discovered by scientists as a frozen waterfall in 1911. Scientists had noticed that a part of the cliff had been stained dark red and the reason was unknown. They then believed that the discolouring of water was due to the presence of algae.

Could there be dinosaurs in Antarctica? ›

Animal fossils

Dinosaurs lived in Antarctica and are well known from the northern tip of the Antarctic Peninsula, although few have been described formally. They include ankylosaurs (the armoured dinosaurs), mosasaurs and plesiosaurs (both marine reptilian groups).

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