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Meridional transport in the stratosphere of Jupiter

Liang, Mao-Chang and Shia, Run-Lie and Lee, Anthony Y. T. and Allen, Mark and Friedson, A. James and Yung, Yuk L. (2005) Meridional transport in the stratosphere of Jupiter. Astrophysical Journal Letters, 635 (2). L177-L180. ISSN 2041-8205. doi:10.1086/499624.

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The Cassini measurements of C_2H_2 and C_2H_6 at ~5 mbar provide a constraint on meridional transport in the stratosphere of Jupiter. We performed a two-dimensional photochemical calculation coupled with mass transport due to vertical and meridional mixing. The modeled profile of C_2H_2 at latitudes less than 70° follows the latitude dependence of the solar insolation, while that of C_2H_6 shows little latitude dependence, consistent with the measurements. In general, our model study suggests that the meridional transport timescale above 5-10 mbar altitude level is ≳1000 yr, and the time could be as short as 10 yr below 10 mbar level, in order to fit the Cassini measurements. The derived meridional transport timescale above the 5 mbar level is 100 times longer than that obtained from the spreading of gas-phase molecules deposited after the impact of Shoemaker-Levy 9 comet. There is no explanation at this time for this discrepancy.

Item Type:Article
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URLURL TypeDescription
Liang, Mao-Chang0000-0002-5294-9344
Shia, Run-Lie0000-0003-1911-3120
Yung, Yuk L.0000-0002-4263-2562
Additional Information:© 2005 The American Astronomical Society. Received 2005 July 27; accepted 2005 November 15; published 2005 December 5. This research was supported in part by NASA grant NAG5- 6263 to the California Institute of Technology. Special thank to Julie Moses for her insightful comments.
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Subject Keywords:atmospheric effects; methods: numerical; planetary systems; planets and satellites: individual (Jupiter); radiative transfer
Issue or Number:2
Record Number:CaltechAUTHORS:20140826-084942295
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Official Citation:Meridional Transport in the Stratosphere of Jupiter Mao-Chang Liang et al. 2005 ApJ 635 L177
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48891
Deposited On:26 Aug 2014 16:25
Last Modified:10 Nov 2021 18:37

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