Journal
ICARUS
Volume 173, Issue 1, Pages 185-199Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.icarus.2004.07.020
Keywords
atmospheres, dynamics; Jupiter, atmosphere
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The temperatures in Jupiter's stratosphere, as measured by the Galileo Atmosphere Structure Instrument (ASI), show fluctuations that have been interpreted as gravity waves. We present a detailed description of these fluctuations, showing that they are not likely to be due to either measurement error or isotropic turbulence. These fluctuations share features with gravity waves observed in the terrestrial middle atmosphere, including the shape and amplitude of the power spectrum of temperature with respect to vertical wavenumber. Under the gravity wave interpretation, we find that wave heating or cooling is likely to be important in Jupiter's upper stratosphere and unimportant in the lower stratosphere. (C) 2004 Elsevier Inc. All rights reserved.
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