Results 11 to 20 of about 681 (182)

The importance of interactive chemistry for stratosphere–troposphere coupling [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
Recent observational and modeling studies suggest that stratospheric ozone depletion not only influences the surface climate in the Southern Hemisphere (SH), but also impacts Northern Hemisphere (NH) spring, which implies a strong interaction between ...
S. Haase, K. Matthes, K. Matthes
doaj   +6 more sources

The role of convective overshooting clouds in tropical stratosphere–troposphere dynamical coupling [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
This paper investigates the role of deep convection and overshooting convective clouds in stratosphere–troposphere dynamical coupling in the tropics during two large major stratospheric sudden warming events in January 2009 and January 2010.
K. Kodera   +3 more
doaj   +6 more sources

Global Warming and Mass Extinctions Associated With Large Igneous Province Volcanism

open access: yesGeophysical Monograph Series, Page 83-102., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
David P. G. Bond, Yadong Sun
wiley  

+5 more sources

Quantifying the Timescale and Strength of Southern Hemisphere Intraseasonal Stratosphere-troposphere Coupling. [PDF]

open access: yesGeophys Res Lett, 2019
AbstractThe Southern Hemisphere zonal circulation manifests a downward influence of the stratosphere on the troposphere from late spring to early summer. However, the strength and timescale of the connection, given the stratospheric state, have not been explicitly quantified.
Saggioro E, Shepherd TG.
europepmc   +5 more sources

On the Role of Radiative Processes in Stratosphere–Troposphere Coupling [PDF]

open access: yesJournal of Climate, 2009
Abstract Climate change in the Southern Hemisphere (SH) polar stratosphere is associated with substantial changes in the atmospheric circulation that extend to the earth’s surface. The mechanisms that drive the changes in the SH troposphere are not fully understood, but most previous hypotheses have focused on the role of atmospheric ...
Grise, Kevin M.   +2 more
openaire   +3 more sources

Hyperchaos from a Model of Coupled Stratosphere-Troposphere Dynamics [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2017
We present a six-dimensional system describing coupled troposphere-stratosphere dynamics which takes the form of two coupled Lorenz-84 systems (one for each of the troposphere and stratosphere) involving thermal forcing terms. The systems are coupled through a linear interaction term, which permits energy transfer between both troposphere and ...
Susheel Adusumilli, Robert A. Van Gorder
openaire   +2 more sources

Stratosphere–Troposphere Coupling in the Southern Hemisphere [PDF]

open access: yesJournal of the Atmospheric Sciences, 2005
AbstractThis study examines the temporal evolution of the tropospheric circulation following large-amplitude variations in the strength of the Southern Hemisphere (SH) stratospheric polar vortex in data from 1979 to 2001 and following the SH sudden stratospheric warming of 2002.
Thompson, David W. J.   +2 more
openaire   +2 more sources

A process-based evaluation of biases in extratropical stratosphere–troposphere coupling in subseasonal forecast systems [PDF]

open access: yesWeather and Climate Dynamics
Two-way coupling between the stratosphere and troposphere is recognized as an important source of subseasonal-to-seasonal (S2S) predictability and can open windows of opportunity for improved forecasts.
C. I. Garfinkel   +35 more
doaj   +1 more source

The Impact of Oceanic Feedbacks on Stratosphere‐Troposphere Coupling in an Idealized Model

open access: yesJournal of Geophysical Research: Atmospheres, 2023
AbstractStratospheric temperature perturbations (STPs) caused by for example, variations in stratospheric ozone, are an important driver of changes in tropospheric dynamics, particularly pertinent to the long‐term climatic evolution of the Southern Hemisphere. However, the impact of ocean feedbacks on this interaction has not been fully examined.
Natasha E. Trencham   +2 more
openaire   +1 more source

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