Journey to Jupiter hits home
Prof. Tim Dowling (Physics & Astronomy) has studied jet streams and atmosphere on Jupiter, Mars, and Earth.
After a five year and two-billion mile journey through space,NASA’s Juno spacecraft sent its probe into Jupiter’s orbit in July. And here on Earth, we got an unprecedented front-row view of our solar system’s largest planet.
“Juno’s results will be akin to taking an MRI of the inside of Jupiter,” said Prof. Tim Dowling (Physics & Astronomy). “It is so exciting to have a big mission to Jupiter, and I’ve actually got some skin in the game – the structure discerned by Juno will make or break my prediction about the deep jets on Jupiter.”
Prof. Dowling’s early career work focused on Jupiter’s atmosphere, specifically jet streams. His research produced the result that Jupiter’s jet streams must be quite deep, and that eastward jets increase in strength as they get deeper, which contradicts the common wisdom that jets get weaker with depth.
“This prediction has waited more than two decades to be tested,” Prof. Dowling said.
His research has gone on to explore jet-stream stability on Saturn, and most recently Earth and Mars. Prof. Dowling’s next project will study the Antarctic Circumpolar Current (ACC). He will analyze the same vorticity-stream function correlations he studied on Earth in 2015 and on Mars in 2016 with Prof. Jian Du-Caines (Physics & Astronomy), Prof. Beth Bradley (Mathematics), and research partners in England.
“Early indications are the ACC is very Jupiter-like in the details of how it behaves, but we shall see,” he said. “It is always exciting to venture into new territory, literally.”