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Snapshots of summer 2012/2013 on the frozen continent
Scientists studying the Ross ice shelf in Antarctica have discovered that ice makes a strange sound when the ice begins to melt. The team of scientists came across this discovery, having never heard the strange noise created by the top layers of ice.
The team of scientists, who recently published his research in Letters of geophysical research, found that wind and melt vibrate ice packs on the surface of the Ross Ice Shelf, producing strange sounds.
Extremely sensitive seismic sensors were used to monitor the sound characteristics on the Ross Ice Shelf in western Antarctica. The initial intention of the research was not to measure this acoustic anomaly, but to study the crust and mantle under Antarctica.
After 2 years of listening to the superficial layers of the Ross ice floe, scientists have discovered that the ice "sings" almost continuously at different frequencies, depending on wind and melt. The song is produced from a high frequency wave trapped in the top few meters of snow. When the winds blow on the pack ice, they vibrate these upper layers, called firn. Seismic sensors, embedded in film layers, measure and record these waves and their "sound" over time.
Frost and drowning after a snowstorm.
Unexpectedly, the researchers discovered that the sound of the pack ice changed as the temperature rose above zero and the ice began to melt. The sound waves began to slow down and the tone decreased in response. This indicated both the merger and the degree of merger. Once the temperatures returned to below freezing, the top face of the cartridge covered with cold but did not regain its original height before the cartridge melted. This could indicate that once melted, the upper layers of ice can not simply regain their original shape.
Scientists want to measure and understand the characteristics of melting in Antarctica and in the upper layers of snowfields, as they represent a key variable in sea level rise over the next few decades. It is estimated that if the Antarctic icecaps melted entirely, the sea level would rise by 60 meters (197 feet).
Ice Highway on the Ross Ice Shelf, Ross Island, Antarctica
In the worst-case scenario, where all the ground ice has melted and passed into the oceans, scientists estimate that the sea level will rise by 216 feet. It is important to note that even in a timely manner, this process would take thousands of years. However, if that happens, our world would be very different, with most coastal cities literally sitting in the ocean.
Through constant seismic monitoring of Antarctic ice shelves, we can understand and project in the future what we expect from sea level rise. Whether you are a global oil and gas giant, and whether you are planning to build your next coastal refinery, a government body debating legislation, or an owner weighing a house on the mountain or on the beach, it's important to understand what lies ahead.
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Snapshots of summer 2012/2013 on the frozen continent
Scientists studying the Ross ice shelf in Antarctica have discovered that ice makes a strange sound when the ice begins to melt. The team of scientists came across this discovery, having never heard the strange noise created by the top layers of ice.
The team of scientists, who recently published his research in Letters of geophysical research, found that wind and melt vibrate ice packs on the surface of the Ross Ice Shelf, producing strange sounds.
Extremely sensitive seismic sensors were used to monitor the sound characteristics on the Ross Ice Shelf in western Antarctica. The initial intention of the research was not to measure this acoustic anomaly, but to study the crust and mantle under Antarctica.
After 2 years of listening to the superficial layers of the Ross ice floe, scientists have discovered that the ice "sings" almost continuously at different frequencies, depending on wind and melt. The song is produced from a high frequency wave trapped in the top few meters of snow. When the winds blow on the pack ice, they vibrate these upper layers, called firn. Seismic sensors, embedded in film layers, measure and record these waves and their "sound" over time.
Frost and drowning after a snowstorm.
Unexpectedly, the researchers discovered that the sound of the pack ice changed as the temperature rose above zero and the ice began to melt. The sound waves began to slow down and the tone decreased in response. This indicated both the merger and the degree of merger. Once the temperatures returned to below freezing, the top face of the cartridge covered with cold but did not regain its original height before the cartridge melted. This could indicate that once melted, the upper layers of ice can not simply regain their original shape.
Scientists want to measure and understand the characteristics of melting in Antarctica and in the upper layers of snowfields, as they represent a key variable in sea level rise over the next few decades. It is estimated that if the Antarctic icecaps melted entirely, the sea level would rise by 60 meters (197 feet).
Ice Highway on the Ross Ice Shelf, Ross Island, Antarctica
In the worst-case scenario, where all the ground ice has melted and passed into the oceans, scientists estimate that the sea level will rise by 216 feet. It is important to note that even in a timely manner, this process would take thousands of years. However, if that happens, our world would be very different, with most coastal cities literally sitting in the ocean.
Through constant seismic monitoring of Antarctic ice shelves, we can understand and project in the future what we expect from sea level rise. Whether you are a global oil and gas giant, gas and whether you plan to build your next coastal refinery, a government body debating legislation or an owner weighing a house on the mountain or on the beach, it is important to understand the future.
