Scientists have recorded the eerie "singing" of the Antarctic Ross ice shelf
Source:
Scientists call it "singing", but our hearing is produced by the Antarctic glacier sounds more like the soundtrack to the denouement of some horror movie. Researchers from the American geophysical Union, recorded this creepy buzz, saying that it is created as a result of loud vibrations. Those, in turn, appear under the influence of strong winds that blow across the icy dunes of the shelf. About the study wrote in the journal Geophysical Research Letters.
Geophysicist and mathematician Julien Chaput of Colorado state University says that rumble has too low frequency to be able to hear naturally, so scientists have recorded and sped it up to 1200 times. Want to hear the sounds of Antarctica? Enjoy.
Of Course, the main purpose of Chaput and his team was not in the record, a creepy soundtrack for a horror movie. Scientists are conducting a study of the physical properties of the Ross ice shelf, the largest floating piece of the Antarctic ice sheet covers an area somewhat less than Spain.
With the rise in average global temperature is the destruction of the Antarctic ice shelves. To understand which forces are taking part in it, Chaput and his colleagues found under a snow hat, which lies on the surface of the Ross ice shelf, 34 seismic sensor. Using these sensors with the end of 2014 and early 2017 the monitoring was carried out internal structural changes shelf. When the scientists analyzed the collected data, they found that the snow cap covering the glacier and is called the firn layer (comprised of densely Packed, granular recrystallized and partly multi-year snow) is in constant motion due to the impact of surface winds.
"We found that the shelf under the influence of strong winds that blow across the icy dunes, responds to this constant «singing» with a frequency of five or more cycles per second" — says Chaput.
Scientists also note that changing the wind force (e.g. due to storms), as well as temperature changes affect not only the vibration of the snow layer, but also on key seismic rumble.
the Laying of power cables of seismometers
"the Change of wind speed or temperature affect strength and tone vibration, destroying the ice dunes. These two forces are responsible for "singing" shelf" — explains Chaput.
According to scientists, the study of the characteristics of these vibrations can help them to better understand how glaciers respond to global temperature changes.
To Discuss the news .
Recommended
Can genes create the perfect diet for you?
Diet on genotype can be a way out for many, but it still has a lot of questions Don't know what to do to lose weight? DNA tests promise to help you with this. They will be able to develop the most individual diet, because for this they will use the m...
How many extraterrestrial civilizations can exist nearby?
If aliens exist, why don't we "hear" them? In the 12th episode of Cosmos, which aired on December 14, 1980, co-author and host Carl Sagan introduced viewers to the same equation of astronomer Frank Drake. Using it, he calculated the potential number ...
Why does the most poisonous plant in the world cause severe pain?
The pain caused to humans by the Gimpi-gympie plant can drive him crazy Many people consider Australia a very dangerous place full of poisonous creatures. And this is a perfectly correct idea, because this continent literally wants to kill everyone w...
Related News
Astronomers have discovered a unique planetary system in the constellation Taurus
About 500 light years from Earth in the constellation of Taurus is a very strange planetary system CI Tau. Astronomers at Cambridge University have found in it four huge gas giant, comparable to our Jupiter and Saturn. What makes ...
Scientists: 2099 beer will become a scarce drink
it is believed that climate change could deprive humanity of many food products. Scientists already there are fears that in the future the Earth will become unsuitable for the growth of some plants, and people become unavailable c...
Why do we need to train the brain
Many people say that the brain needs exercise — they say, he's works great. And understanding, unfortunately, comes too late, when the outbreak of the aging process information is not extracted as easily as before, there is ...
"Liver on a chip" — the perfect test environment to test CRISPR
the Most famous not today editor CRISPR genome have already proved their effectiveness. However, the technology is quite young and requires further study the effects on living organisms. Traditionally CRISPR tested on animals or h...
RNA was much more important than we thought
well-Known information about the structure of our body suggests that the main function of all vital processes is DNA. RNA is considered a "support structure", which is involved in encoding, recording, transmitting information and ...
In Italy, the burial was found "Vampire of Lugnano"
In ancient times there was a very strange and even horrific tradition. For example, in 2016 in Kabardino-Balkaria was excavated the skeleton of a 16-year-old girl during the first century of our era with . The archaeologists expla...
Mathematics confirmed the possibility of data transfer with the help of gravitational waves
Mathematicians have analyzed the properties of gravitational waves in the General affine-metric space (algebraic structures acting on the concepts of vector and point) is similar to the properties of electromagnetic waves in Minko...
The invention of the ancient Egyptians will help to do without air conditioning
Technology of ancient Egypt is shrouded in mystery and studied so far. For example, in August of 2018, scientists have discovered that the Great pyramid of Giza is able to . It is also known that the Egyptians were the first who s...
Another silent NASA telescope in orbit
the Next space telescope, NASA stopped work and halted scientific observations. Less than a week after the Hubble space telescope went offline, x-ray Observatory Chandra followed him. On Friday, NASA announced that the Chandra is ...
Environmentalists believe that the modern lawn more harm than good
a Group of local environmentalists, one from Australia, one from Sweden, outlined in a paper published in the journal Science, his view of the modern rethinking of the lawn. In his work Maria Ignatieva and Marcus Hedblom note that...
Published another suicide work of Stephen Hawking
In may this year on the publication of the work of Stephen Hawking, in which he considered the nature of our Universe and called it part of a larger Multiverse. The article was written in collaboration with a Belgian colleague Tho...
Scientists have found a method of growing artificial retina
at today's level of medicine we can grow a variety of tissues for transplant. But the problem is that this applies mostly only to a fairly "simply" arranged tissues like skin, bones or muscles. And the more complex the device has ...
Astronomers first witnessed the birth of a system of binary neutron stars
the Completion of the life cycle of stars can occur in different ways. Some turn into black holes, others are scattered in the nebula. If the star had a very large mass, at her death, the light may appear to be a neutron star – a ...
Astronomers have discovered 20 mysterious radio signals from outer space
a Large number of fast radiuspacket (FRB), discovered by Australian scientists can help astronomers to finally understand the mysterious nature and find out the source of these powerful radio pulses from deep space. The article of...
As Saturn will help to improve the engines on the Ground?
Most modern engines running on hydrocarbon fuels. When burned, formed a rather large amount of energy, which is enough for the effective use of a variety of vehicles. However, according to the editors of the journal Nature, Astron...
Established drugs the "time bomb" to fight infections
Humanity, perhaps, its history is a relentless fight against bacteria, inventing all new and new "tools" for this battle. And most recently, as reported by the editors of the journal of the American Chemical Society, has developed...
In the brain found the area responsible for the "sleep mode"
two decades ago, a group of researchers from the medical center Beth Israel Deaconess in Boston and is a teaching hospital for Harvard medical school, found in the brain the nerve cells, which, according to scientists, моглb to be...
The new technology allows to detect lung cancer at a very early stage
One of the most dangerous forms of cancer is non-small cell lung cancer, which often leads to death due to the fact that the means to diagnose the disease at an early stage is often not very effective. However, as reported by jour...
A new study shows that nerve cells are still recovering
"Nerve cells do not regenerate". This expression is known to everyone. But it was a lot of research on this topic and failed to prove that it is not so. Moreover, in a recent study, published in the journal Cell Stem Cell, it is ...
Discovered bacteria that can destroy nuclear waste
One of the main problems of using radioactive fuel is dumping its exhaust waste. Moreover, the risk to the environment is not so much the material as the migration of radionuclides in soil and air. But recently a group of Russian...
Comments (0)
This article has no comment, be the first!