Observations on the Earth Helps to Observe Jupiter’s Typhoons

Lia Siegelman was I was just reading about the southern waters of the Southern Ocean, which orbits Antarctica, when it encountered a picture of a hurricane north of Jupiter, taken by NASA. Juno spacecraft. He said: “I looked at it, and, look!

That’s why Siegelman, a researcher at San Diego’s Scripps Institution of Oceanography, took a closer look at the latest. pictures of a foreign country. He and his team confirmed for the first time that the type of convection seen on Earth describes the physical forces and the powerful sources that create the storm at Jupiter. (Since air and water are both “liquid,” as the case may be, the same principles apply to the giant’s atmosphere and our oceans.) They published their findings in the magazine today. Nature Physics.

Jupiter, the 4-octillion-pound elephant in our solar system, produces a hurricane, a hurricane that travels across very low altitudes. Some are thousands of miles long — as large as the continental United States — with winds of up to 150 miles per hour[250 km / hr]. 8 of the largest have been observed in the North pole and five in the south. Scientists have speculated about its origin for many years, but by designing these storms and measuring wind speed and temperature, Siegelman and colleagues demonstrated how they are made. Tiny round waves appear here and there in the midst of turbulent clouds – not much different from the sea of ​​eddies Siegelman they are familiar with – and then begin to coalesce. The hurricane-force winds are propelled by the ever-increasing number of small clouds, and the force behind them, so that it keeps moving around, he said.

It is a clever way of studying the weather in a world that is more than 300 million miles away. “The authors are based on the study of meteorology and oceanography. These people are taking these rich manuscripts and using them in the most advanced ways in the world that we can never touch,” said Morgan O’Neill, a Stanford astronomer who specializes in hurricane and hurricane science. earth and has used its function in Saturn.

In particular, O’Neill states, a team of scientists is showing how, like a hurricane on Earth, a hurricane Jupiter is formed through a process with the nickname: “wet movement.” Warm, thin air, which is very low in the atmosphere, rises slowly, while cold and very thin air, near the coldest air, flows down. This creates turbulence, which is reflected in the surrounding Jupiter cloud, filled with ammonia moisture.

Photo: NASA / JPL-Caltech / SwRI / ASI / INAF / JIRAM

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