Astronomy: Jupiter’s raging gas cyclones may actually mirror Earth’s oceans. Here’s how
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Jupiter is essentially an "ocean of gas."
How different are Jupiter’s gaseous layers and Earth’s oceans? Perhaps not as much as you expect.
Lia Siegelman, a physical oceanographer at the University of California, San Diego’s Scripps Institution of Oceanography, has been studying Jupiter through the lens of Earth’s oceans to determine what powers the gas giant’s raging cyclones. "Jupiter is basically an ocean of gas," she said in a statement.
Siegelman’s original research, published in 2022, demonstrated that Jovian cyclones are powered by convection much in the same way Earth’s storms are. Following up on that study, she and her team are now analyzing filaments, or "wispy tendrils" found between the Jupiter’s vortices, seen in satellite imagery of the gas giant taken by NASA’s Juno spacecraft.
Calculating the horizontal wind speed of the world’s clouds and filaments through an analysis of infrared images, Siegelman noticed that the filaments appeared to behave similarly to fronts in Earth’s ocean and atmosphere, like cold fronts or storm fronts. These fronts represent a boundary between masses with different densities (on Earth, that’s usually dependent on temperature of the atmosphere and salinity of the ocean). Fronts are typically associated with strong winds or currents along their edges, which could help power Jupiter’s cyclones.
The team then used methods from oceanography and atmospheric science to calculate the vertical wind speeds of the filaments, which confirmed the similarity in behavior between Earth-based fronts and Jovian ones. Through this process, the team determined that the filaments help transport heat energy from Jupiter’s interior to its upper atmosphere, thus contributing to approximately "a quarter of the total kinetic energy powering Jupiter’s cyclones and forty percent of the vertical heat transport," per the statement.
"It’s fascinating that fronts and convection are present and influential on Earth and Jupiter — it suggests that these processes may also be present on other turbulent fluid bodies in the universe,” said Siegelman. "There is some cosmic beauty in finding out that these physical mechanisms on Earth exist on other faraway planets."
Source: https://www.space.com/jupiter-gas-cyclones-earth-oceans
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