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Found 3 results

  1. The NAO Troposphere–Stratosphere Connection Authors: Maarten H. P. Ambaum and Brian J. Hoskins Published online: 15th July, 2002 Abstract: Using monthly mean data, daily data, and theoretical arguments, relationships between surface pressure variations associated with the North Atlantic Oscillation (NAO), tropopause height, and the strength of the stratospheric vortex are established. An increase in the NAO index leads to a stronger stratospheric vortex, about 4 days later, as a result of increased equatorward refraction of upward-propagating Rossby
  2. Stratospheric Processes And their Role in Climate (SPARC) Authors: Peter Haynes Published By: "SPARC" - A Project of the World Climate Research Programme Published online: July, 2005 Introduction: It is widely accepted that the troposphere has a strong dynamical effect on the stratosphere, primarily through the upward propagation of waves, both low-frequency large-scale Rossby waves (‘planetary waves’) and high-frequency inertia-gravity waves. Understanding of this effect is based on simple theories of wave propagation (including the wellk
  3. Sensitivity of simulated convection‐driven stratosphere‐troposphere exchange in WRF‐Chem to the choice of physical and chemical parameterization Authors: Daniel B. Phoenix, Cameron R. Homeyer and Mary C. Barth Published By: "Earth and Space Science" Published online: 20th July, 2017 Abstract: Tropopause‐penetrating convection is capable of rapidly transporting air from the lower troposphere to the upper troposphere and lower stratosphere (UTLS), where it can have important impacts on chemistry, the radiative budget, and climate. Howev
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