A Caltech Library Service

Pioneer 10 and 11 Observations and the Dynamics of Jupiter's Atmosphere

Ingersoll, A. P. (1976) Pioneer 10 and 11 Observations and the Dynamics of Jupiter's Atmosphere. Icarus, 29 (2). pp. 245-253. ISSN 0019-1035. doi:10.1016/0019-1035(76)90052-X.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


Three new results of the Pioneer 10 and 11 mission are discussed. The first is that effective temperature is the same at the poles and equator in spite of the large differences in solar energy deposition. This is consistent with theories of convection which suggest that an extremely small equator-to-pole temperature difference at the level of infrared emission could suppress the internal heat flux at the equator relative to the pole by an amount sufficient to balance the difference in solar energy deposition. The second result is that the effective temperature of belts is 3 to 4K greater than that of zones, which is almost exactly accounted for by the lower albedo of belts. This result cannot be interpreted uniquely, but is consistent with a model in which the internal heat flux is the same under belts and zones, and the horizontal atmospheric heat flux is zero. The third observation provides evidence of instability along the south edges of zones in the northern hemisphere. These are the latitudes of minimum prograde velocity, where instability is most likely to occur in a barotropic fluid, as pointed out by Ingersoll and Cuzzi (1969). A more realistic baroclinic stability analysis suggests instability at these same latitudes.

Item Type:Article
Related URLs:
URLURL TypeDescription
Ingersoll, A. P.0000-0002-2035-9198
Additional Information:© 1976 by Academic Press, Inc. Received May 29, 1975; revised September 16, 1975. This research was supported by NASA Grant NGL 05-002-003. I thank David Pollard for useful comments and criticisms.
Group:UNSPECIFIED, Division of Geological and Planetary Sciences
Funding AgencyGrant Number
NASANGL 05-002-003
Issue or Number:2
Record Number:CaltechAUTHORS:20121205-103538065
Persistent URL:
Official Citation:A.P. Ingersoll, Pioneer 10 and 11 observations and the dynamics of Jupiter's atmosphere, Icarus, Volume 29, Issue 2, October 1976, Pages 245-253, ISSN 0019-1035, 10.1016/0019-1035(76)90052-X. (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:35818
Deposited By: Ruth Sustaita
Deposited On:05 Dec 2012 18:43
Last Modified:09 Nov 2021 23:17

Repository Staff Only: item control page