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Climate change: 700-year history of wind recorded in island mud

Climate change: 700-year history of wind recorded in island mud
By Jonathan Amos
image captionMarion Island (290 sq km) is the peak of a volcano. The lake is circled
Scientists have reconstructed a 700-year history of how westerly winds have blown around the Southern Hemisphere.
It s a remarkable record that s written in the muds at the bottom of a small lake on the remote Marion Island in the sub-Antarctic Indian Ocean.
What this history reveals is that the strength and latitude of the westerlies is tied closely to temperature.
And the implication is that the winds will likely intensify and move poleward as the climate warms. ....

United Kingdom , Jonathan Amos , Antarctic Indian Ocean , British Antarctic Survey , Amarion Island , Antarctic Indian , Bianca Perren , ஒன்றுபட்டது கிஂக்டம் , ஜொனாதன் ஆமோஸ் , அண்டார்டிக் இந்தியன் கடல் , பிரிட்டிஷ் அண்டார்டிக் கணக்கெடுப்பு , மரியன் தீவு , அண்டார்டிக் இந்தியன் , பியான்கா பெர்றேன் ,

History of wind recorded in an island's mud

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History of wind recorded in an island s mud
© Copernicus Data/Sentinel-2
Marion Island (290 sq km) is the peak of a volcano. The lake is circled
Scientists have reconstructed a 700-year history of how westerly winds have blown around the Southern Hemisphere.
It s a remarkable record that s written in the muds at the bottom of a small lake on the remote Marion Island in the sub-Antarctic Indian Ocean.
What this history reveals is that the strength and latitude of the westerlies is tied closely to temperature.
And the implication is that the winds will likely intensify and move poleward as the climate warms. ....

South Africa , United States , United Kingdom , Dominic Hodgson , Antarctic Indian Ocean , Communications Earth Environment , British Antarctic Survey , Amarion Island , Antarctic Indian , Bianca Perren , Southern Ocean , White Continent , Southern Hemisphere , Little Ice Age , South America , Communications Earth , ஒன்றுபட்டது மாநிலங்களில் , ஒன்றுபட்டது கிஂக்டம் , ஆதிக்கம் செலுத்தும் ஹோட்சன் , அண்டார்டிக் இந்தியன் கடல் , தகவல்தொடர்புகள் பூமி சூழல் , பிரிட்டிஷ் அண்டார்டிக் கணக்கெடுப்பு , மரியன் தீவு , அண்டார்டிக் இந்தியன் , பியான்கா பெர்றேன் , தெற்கு கடல் ,

Westerly Winds Could Intensify, Migrate Poleward with Climate Change

Westerly Winds Could Intensify, Migrate Poleward with Climate Change
Written by AZoCleantechDec 10 2020
The most high-resolution past record of the Southern Hemisphere westerly winds has now been developed by polar climate scientists.
The coast of sub-Antarctic Marion Island. Sea spray is washed over the land and into nearby lakes. Image Credit: Dominic Hodgson.
The study findings were published on December 9th, 2020, in the
Communications Earth and Environment journal and explain how the winds could probably strengthen and migrate poleward with the warming climate. The study offers data that will enhance the precision of models that predict the future.
The westerly winds (called the furious fifties, roaring forties and screaming sixties with respect to their latitude) are specifically strong since there is a lack of continental landmasses in the Southern Ocean to reduce their speed. ....

South Africa , United States , United Kingdom , South African , Dominic Hodgson , African Department Of Environmental Affairs , Research Foundation Flanders , British Antarctic , United Kingdom Natural Environment Research Council , University Of Ghent , African National Antarctic Program , Communications Earth , Swiss Polar Institute , Southern Hemisphere , Antarctic Marion , Southern Ocean , Little Ice Age , Bianca Perren , Study Lead Author , Professor Dominic Hodgson , Principal Investigator , British Antarctic Survey , South America , South African National Antarctic Program , South African Department , ஒன்றுபட்டது மாநிலங்களில் ,