Strong downdrafts preceding rapid tropopause ascent and their potential to identify cross-tropopause stratospheric intrusions
نویسندگان
چکیده
منابع مشابه
Stratospheric control of upward wave flux near the tropopause
[1] Using an idealized, global primitive equation model of the stratosphere-troposphere system in which all tropospheric variability is surpressed, we demonstrate the existence of internal modes of stratospheric variability. The variability in our model is similar to that observed in the winter stratosphere, consisting of sudden-warming like, wave-driven decelerations of the polar vortex follow...
متن کاملThe Impact of Stratospheric Ozone Recovery on Tropopause Height Trends
The evolution of the tropopause in the past, present, and future climate is examined by analyzing a set of long-term integrations with stratosphere-resolving chemistry climate models (CCMs). These CCMs have high vertical resolution near the tropopause, a model top located in the mesosphere or above, and, most important, fully interactive stratospheric chemistry. Using such CCM integrations, it ...
متن کاملCirculation Sensitivity to Tropopause Height
The possibility that the tropopause could be lower during an ice-age cooling leads to an examination of the general sensitivity of global circulations to the tropopause height by altering a constant stratospheric temperature Ts in calculations with a dry, global, multilevel, spectral, primitive equation model subject to a simple Newtonian heating function. In general, lowering the tropopause by...
متن کاملResidual Circulation and Tropopause Structure
The effect of large-scale dynamics as represented by the residual mean meridional circulation in the transformed Eulerian sense, in particular its stratospheric part, on lower stratospheric static stability and tropopause structure is studied using a comprehensive chemistry–climate model (CCM), reanalysis data, and simple idealized modeling. Dynamical forcing of static stability as associated w...
متن کاملStratospheric intrusions
Stratospheric intrusions induced by a Rossby Wave breaking and its interaction with the subtropical jet during PICO3 campaign A. Carré, F. Ravetta, J.-P. Cammas, P. Mascart, J. Duron, G. Ancellet, and D. Lambert Laboratoire d’Aérologie, Observatoire Midi-Pyrénées, Toulouse, France Service d’Aéronomie, Institut Pierre Simon Laplace, Paris, France Received: 23 June 2005 – Accepted: 25 July 2005 –...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annales Geophysicae
سال: 2018
ISSN: 1432-0576
DOI: 10.5194/angeo-36-1403-2018