Eddy diffusion at Saturn's homopause | Zendy

Sandel B. R. | Zendy; McConnell J. C. | Zendy; Strobel D. F. | Zendy

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Eddy diffusion at Saturn's homopause

Author(s) -

Sandel B. R.,

McConnell J. C.,

Strobel D. F.

Publication year - 1982

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/gl009i009p01077

Subject(s) - saturn , physics , occultation , diffusion , eddy diffusion , atmosphere (unit) , astronomy , atmospheric models , astrophysics , atmospheric sciences , meteorology , planet , turbulence , thermodynamics

Measurements of Saturn's He 584 A dayglow and the CH 4 density profile deduced from stellar occultation data near the homopause have been combined to infer an eddy diffusion coefficient of 8±4 × 10 7 cm²s −1 and a temperature of K near the homopause at Voyager 2 encounter. It appears the eddy diffusion coefficient may have increased between the Voyager encounters. Saturn's H Lyα dayglow is qualitatively compatible with this increase and the interpretation of the He 584 A dayglow and CH 4 absorption measurement.

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