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24 April 2024 |
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Jovian Atmosphere: Structure and Composition between the Turbopause and the Mesopause | | Arl Sagan
; Joseph Veverka
; Lawrence Wasserman
; James Elliot
; William Liller
; | | Date: |
24 May 1974 | | Journal: | Science, 184 (4139), 901-903 | | Abstract: | The occultation of the star Beta Scorpii by Jupiter was observed at high time resolution in three wavelength channels. The results imply a temperature of 220 degrees K at an altitude in the Jovian atmosphere corresponding to 10(14) molecules per cubic centimeter, and temperature fluctuations of 2 degrees to 10 degrees K over vertical scales of 2 to 10 kilometers. They suggest that the vertical eddy diffusion coefficient near the turbopause has a lower limit of 7 x 10(5)K square centimeters per second, and that the turbopause lies above the altitude where the density is 5 x 10(13) molecules per cubic centimeter. Below the turbopause, the ratio of hydrogen to helium is consistent with cosmic abundances. | | Source: | PubMed, pmid17782383 doi: 10.1126/science.184.4139.901 | | Services: | Forum | Review | Favorites | |
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