Polar vortex crystals: Emergence and structure. [PDF]
Proc Natl Acad Sci U S A, 2022 Vortex crystals are quasiregular arrays of like-signed vortices in solid-body rotation embedded within a uniform background of weaker vorticity. Vortex crystals are observed at the poles of Jupiter and in laboratory experiments with magnetized electron plasmas in axisymmetric geometries.
Siegelman L, Young WR, Ingersoll AP.
europepmc +6 more sources
Polar Vortex Multi-Day Intensity Prediction Relying on New Deep Learning Model: A Combined Convolution Neural Network with Long Short-Term Memory Based on Gaussian Smoothing Method [PDF]
Entropy, 2021 The variation of polar vortex intensity is a significant factor affecting the atmospheric conditions and weather in the Northern Hemisphere (NH) and even the world.
Kecheng Peng +5 more
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Forecasting extreme stratospheric polar vortex events. [PDF]
Nat Commun, 2020 AbstractExtreme polar vortex events known as sudden stratospheric warmings can influence surface winter weather conditions, but their timing is difficult to predict. Here, we examine factors that influence their occurrence, with a focus on their timing and vertical extent. We consider the roles of the troposphere and equatorial stratosphere separately,
Gray LJ +6 more
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Polar vortex hidden in twisted bilayers of paraelectric SrTiO3 [PDF]
Nature CommunicationsPolar topologies, such as vortex and skyrmion, have attracted significant interest due to their unique physical properties and promising applications in high-density memory devices.
Haozhi Sha +8 more
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Strong polar vortex favoured intense Northern European storminess in February 2022 [PDF]
Communications Earth & EnvironmentFebruary 2022 was an unusually stormy month over Northern Europe, including three extratropical cyclones impacting the United Kingdom and Ireland within a single week. The month also experienced an exceptionally strong stratospheric polar vortex; however,
Ryan S. Williams +4 more
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Observations of meteoric material and implications for aerosol nucleation in the winter Arctic lower stratosphere derived from in situ particle measurements [PDF]
Atmospheric Chemistry and Physics, 2005 Number concentrations of total and non-volatile aerosol particles with size diameters >0.01 μm as well as particle size distributions (0.4–23 μm diameter) were measured in situ in the Arctic lower stratosphere (10–20.5 km altitude). The
J. Curtius +13 more
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Subunit cell-level measurement of polarization in an individual polar vortex. [PDF]
Sci Adv, 2019 We report accurates and informative measurement with subunit cell resolution for local polarization distribution in ferroelectrics.
Sun Y +18 more
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Quasi-2D and 3D phase-field simulation studies of polar vortex domain structures for high-density domain engineering [PDF]
Scientific ReportsPhase-field simulations were performed on the polar vortex array structure appearing in the SrTiO3/PbTiO3/SrTiO3 heterostructure to investigate the Kittel law relationship (w ∝ d 1/2) between the vortex array period (w) and the PbTiO3 ferroelectric layer
Boo Hyun Cha +2 more
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Correlations of mesospheric winds with subtle motion of the Arctic polar vortex [PDF]
Atmospheric Chemistry and Physics, 2010 This paper investigates the relationship between high latitude upper mesospheric winds and the state of the stratospheric polar vortex in the absence of major sudden stratospheric warmings.
Y. Bhattacharya, A. J. Gerrard
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Exploring the link between austral stratospheric polar vortex anomalies and surface climate in chemistry-climate models [PDF]
Atmospheric Chemistry and Physics, 2022 Extreme events in the stratospheric polar vortex can lead to changes in the tropospheric circulation and impact the surface climate on a wide range of timescales.
N. Bergner +6 more
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