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IC.1RUS 31, 348-355 (1977) The Distribution of Ammonia and Its Photochemical
 

Summary: IC.1RUS 31, 348-355 (1977)
The Distribution of Ammonia and Its Photochemical
Products on Jupiter
S. K. ATREYA,' T. M. DONAHUE,' AND W. R. KUHN's2
Department of Atmospheric and Oceanic Science, Space Physics Research Laboratory,
The University of Michigan, Ann Arbor, Michigan 48109
Received June 15, 1976; revised January 3, 1977
Altitude profiles of ammonia and its photochemical products are generated in the light
of the new measurements of the Jovian temperature structure, eddy transport coefficient,
improved chemical scheme, and rate constants. Realistic limits are placed on the concen-
tration of hydrazine which may participate in the recycling of ammonia on Jupiter. The
maximum hydrazine ice production rate is calculated to be about 1.3 mg mm2/Jovian day.
The distribution of nitrogen gas is presented with and without supersaturation of hydrazine.
The nitrogen mixing ratio near the ammonia cloud top is estimated to be in the range of 10-S
to lo-11. An appreciable latitudinal variation in the ammonia concentration is expected.
INTRODUCTION
Several new laboratory and in situ mea-
surements pertinent to the problem of
ammonia on Jupiter have become available
since Strobe1 (1973) published his calcula-

  

Source: Atreya, Sushil - Department of Atmospheric, Oceanic and Space Science, University of Michigan

 

Collections: Physics