Geophysical Research Letters, 2022 We apply a causal inference‐based framework to test and quantify previously suggested causal relationships between Northern Hemisphere blocking, upward wave‐activity fluxes and stratospheric polar vortex (SPV) variability using reanalysis data.
Kamilya Yessimbet +3 more
doaj +1 more source
Quantification of transport across the boundary of the lower stratospheric vortex during Arctic winter 2002/2003 [PDF]
, 2007 Strong perturbations of the Arctic stratosphere during the winter 2002/2003 by planetary waves led to enhanced stretching and folding of the vortex. On two occasions the vortex in the lower stratosphere split into two secondary vortices that re-merged ...
R. Müller +18 more
core +2 more sources
Stability of Polar Vortex Lattice in Ferroelectric Superlattices [PDF]
Nano Letters, 2017 A novel mesoscale state comprising of an ordered polar vortex lattice has been demonstrated in ferroelectric superlattices of PbTiO3/SrTiO3. Here, we employ phase-field simulations, analytical theory, and experimental observations to evaluate thermodynamic conditions and geometric length scales that are critical for the formation of such exotic vortex ...
Zijian Hong +11 more
openaire +5 more sources
The impact of the mixing properties within the Antarctic stratospheric vortex on ozone loss in spring [PDF]
, 2001 Calculations of equivalent length from an artificial advected tracer provide new insight into the isentropic transport processes occurring within the Antarctic stratospheric vortex. These calculations show two distinct regions of approximately equal area:
Shuckburgh, E. F. +19 more
core +1 more source
Signature of the stratosphere–troposphere coupling on recent record-breaking Antarctic sea-ice anomalies [PDF]
The Cryosphere, 2023 In February 2023, the sea-ice extent around Antarctica dropped to 1.79×106 km2, setting a satellite-era record low for the second straight year. Recent records stress the need for further research into the factors behind record-breaking Antarctic sea-ice
R. R. Cordero +11 more
doaj +1 more source
Observation and simulation of wave breaking in the southern hemispheric stratosphere during VORCORE [PDF]
Annales Geophysicae, 2013 An interesting occurrence of a Rossby wave breaking event observed during the VORCORE experiment is presented and explained. Twenty-seven balloons were launched inside the Antarctic polar vortex.
M. Moustaoui, H. Teitelbaum, A. Mahalov
doaj +1 more source
EOS MLS observations of dehydration in the 2004-2005 polar winters [PDF]
, 2006 Observations of water vapour and temperature from the Earth Observing System Microwave Limb Sounder are used to study dehydration in the 2004 and 2005 polar vortices.
Santee, M. L. +7 more
core +1 more source
Observation of mesospheric air inside the arctic stratospheric polar vortex in early 2003 [PDF]
, 2005 During several balloon flights inside the Arctic polar vortex in early 2003, unusual trace gas distributions were observed, which indicate a strong influence of mesospheric air in the stratosphere.
Levin, Ingeborg +37 more
core +2 more sources
Update of the Polar SWIFT model for polar stratospheric ozone loss (Polar SWIFT version 2) [PDF]
Geoscientific Model Development, 2017 The Polar SWIFT model is a fast scheme for calculating the chemistry of stratospheric ozone depletion in polar winter. It is intended for use in global climate models (GCMs) and Earth system models (ESMs) to enable the simulation of mutual ...
I. Wohltmann, R. Lehmann, M. Rex
doaj +1 more source
The effect of interactive ozone chemistry on weak and strong stratospheric polar vortex events [PDF]
Atmospheric Chemistry and Physics, 2020 Modeling and observational studies have reported effects of stratospheric ozone extremes on Northern Hemisphere spring climate. Recent work has further suggested that the coupling of ozone chemistry and dynamics amplifies the surface response to ...
J. Oehrlein +3 more
doaj +1 more source