Impact of Dry Midlevel Air on the Tropical Cyclone Outer Circulation

  title={Impact of Dry Midlevel Air on the Tropical Cyclone Outer Circulation},
  author={Shuai Wang and Ralf Toumi},
  journal={Journal of the Atmospheric Sciences},
  • Shuai Wang, R. Toumi
  • Published 1 June 2019
  • Environmental Science, Physics
  • Journal of the Atmospheric Sciences
The impact of dry midlevel air on the outer circulation of tropical cyclones is investigated in idealized simulations with and without a moist envelope protecting the inner core. It is found that a dry midlevel layer away from the cyclone center can broaden the outer primary circulation and thus the overall destructive potential at both developing and mature stages. The midlevel outer drying enhances the horizontal gradient of latent heating in the rainbands and drives the expansion of the… 
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