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GEOPHYSICAL RESEARCH LETTERS,
VOL. 29,
1023,
4 PP., 2002
doi:10.1029/2001GL013771
Work output of planetary atmospheric engines: dissipation in clouds and rain
Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, 85721-0092, USA
Dept of Atmospheric Sciences, University of Arizona, Tucson, AZ USA
We compute the dissipation due to the drag of falling raindrops and cloud droplets, and find both to be significant sources of dissipation on Earth and possibly Titan. On other planets, they appear to be insignificant. We compare this dissipation with the latent heat transported by the drops and the thermodynamic efficiency with which it can be converted into work. This comparison suggests moist convection on Earth and Titan is similar, but on Jupiter latent heat alone does not provide enough work to lift the condensate against gravity.
Published 25 January 2002.
Citation: (2002), Work output of planetary atmospheric engines: dissipation in clouds and rain, Geophys. Res. Lett., 29(2), 1023, doi:10.1029/2001GL013771.
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