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Scientists discover “ringing” in the earth’s atmosphere



Air bell

According to a new study by an international team of researchers, the entire earth’s atmosphere vibrates like a ringing bell – a deep fundamental alongside higher “overtones”.

The discovery could help scientists better predict weather patterns and understand the composition of our atmosphere.

“This finally solves a longstanding and classic problem in atmospheric science, but it also opens up a new way of research to understand both the processes that excite the waves and the processes that dampen the waves,” said co-author Kevin Hamilton , Professor at the International Pacific Research Center at the University of Hawaii, said in a statement.

Atmo Reso

The atmospheric resonances were first proposed at the beginning of the 1

9th century by the French physicist Pierre-Simon Laplace, whose dynamic tidal theory has since enabled scientists to predict deformations in the atmosphere of a planet.

According to Hamilton and his colleagues, the tones are generated by massive pressure waves that move around the globe. Each wave corresponds to each of these different resonance frequencies.

“Our identification of so many modes in real data shows that the atmosphere is actually ringing,” said Hamilton.

Wave modes

The new study includes a detailed analysis of pressure observations over 38 years. The researchers found dozens of waves circling the earth in a checkerboard pattern.

“For these fast-moving wave modes, our observed frequencies and global patterns match the theoretically predicted ones very well,” said lead author Takatoshi Sakazaki, an assistant professor at the Graduate School of Science at Kyoto University, in the statement. “It is exciting to see how the vision of Laplace and other pioneering physicists has been so fully confirmed after two centuries.”

CONTINUE READING: New study detects the ringing of the global atmosphere [University of Hawaii at Manoa]

More about the Earth’s atmosphere: New research: The earth’s atmosphere extends far beyond the moon


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