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Planetary Climates$
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Andrew P. Ingersoll

Print publication date: 2013

Print ISBN-13: 9780691145044

Published to Princeton Scholarship Online: October 2017

DOI: 10.23943/princeton/9780691145044.001.0001

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Jupiter Winds and Weather

Jupiter Winds and Weather

Chapter:
(p.162) 8 Jupiter Winds and Weather
Source:
Planetary Climates
Author(s):

Andrew P. Ingersoll

Publisher:
Princeton University Press
DOI:10.23943/princeton/9780691145044.003.0008

This chapter examines the effect of winds on Jupiter's weather. The Great Red Spot is an atmospheric structure—a storm—that is free to move about under the laws of fluid dynamics. On Earth, these laws lead to turbulence, chaos, and limited predictability. By comparison, the Red Spot is well behaved. It stays in one latitude band, rolling like a ball bearing between two conveyor belts—a westward current to the north and an eastward current to the south. All the large-scale features are remarkably constant. Atmospheric scientists during the Voyager encounter were surprised by the areas outside the Red Spot and the three white ovals—formerly featureless areas that had become turbulent convective regions. The chapter first provides an overview of long-range weather forecasting on Jupiter before discussing the dynamics of rotating fluids, momentum transfer by eddies, stability of zonal jets, geostrophic balance, vorticity, and abyssal weather.

Keywords:   winds, Jupiter, weather, Great Red Spot, chaos, weather forecasting, rotating fluids, momentum transfer, zonal jets, geostrophic balance

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