Search Results

You are looking at 1 - 3 of 3 items for :

  • Stratophere-troposphere coupling x
  • Monthly Weather Review x
  • All content x
Clear All
Charles Chemel, Maria R. Russo, John A. Pyle, Ranjeet S. Sokhi, and Cornelius Schiller

1. Introduction The characteristics of the upper-troposphere/lower-stratosphere (UT/LS) region are intrinsically determined by those of both spheres. The balance of processes that regulate its dynamical, radiative, and chemical characteristics is at the heart of the debate on UT/LS exchanges. In particular, the quantification of the respective role of convective overturning in the troposphere and radiative and/or diabatic overturning in the stratosphere in determining the entry of atmospheric

Full access
Lawrence Coy and Steven Pawson

Oscillation ( Baldwin and Dunkerton 2001 ) and Pacific blocking ( Kodera et al. 2013 ). Stratospheric forecasts are especially intriguing as the stratosphere (with dynamics dominated by global-scale vorticity advection) tends to be more predictable than the troposphere ( Hoppel et al. 2008 ) so that, if the stratosphere has a significant influence on global modes, a realistic stratosphere may enhance their predictability. Stratospheric and tropospheric analyses are useful for dynamical studies of coupling

Full access
Martin Charron, Saroja Polavarapu, Mark Buehner, P. A. Vaillancourt, Cécilien Charette, Michel Roch, Josée Morneau, Louis Garand, Josep M. Aparicio, Stephen MacPherson, Simon Pellerin, Judy St-James, and Sylvain Heilliette

2010 ; Douville 2009 ). On the medium-range forecasting (or 2 week) time scale, knowledge of the stratospheric state can also improve the quality of tropospheric forecasts ( Christiansen 2001 , 2005 ; Baldwin et al. 2003 ; Zhou et al. 2002 ; Charlton et al. 2004 ). However, mechanisms to explain the stratospheric impact on the troposphere are still in dispute ( Charlton et al. 2005 ). At the same time that advances in understanding stratosphere–troposphere coupling were being made, new

Full access