Vertical momentum and heat transport induced by wave breaking and cloud feedback heating in the venusian atmosphere

Research output: Contribution to journalArticlepeer-review

Abstract

Upward convective heat fluxes in the Venusian low-stability layer (~55 km) become larger as wave-forcing and heating amplitudes are increased in 5.5-day wave and cloud feedback heating (CFH) experiments. In contrast, the upward heat flux is weak and insensitive to the wave-forcing amplitude in 8-day wave experiments, because the forced wave predominantly breaks below the low-stability layer. The planetary-scale wave breaking induces downward heat flux at 45-50 km. In addition, convective penetration produces downward heat fluxes near the top and bottom of the low-stability layer when the convection is fully developed. Above 60 km, vertically propagating gravity waves emitted from the low-stability layer have negative momentum fluxes. The maximum downward eddy momentum flux is proportional to the upward heat flux in the low-stability layer. Fine structures of atmospheric static stability vary between wave propagation, convective penetration, and planetary-scale wave breaking.

Original languageEnglish
Pages (from-to)165-174
Number of pages10
JournalTheoretical and Applied Mechanics Japan
Volume63
DOIs
Publication statusPublished - Oct 10 2015

All Science Journal Classification (ASJC) codes

  • Mathematics(all)
  • Condensed Matter Physics
  • Mechanics of Materials

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