Results 31 to 40 of about 84,860 (301)
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
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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
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Coherence-induced polarization effects in vector vortex beams [PDF]
Optics Letters, 2020 We demonstrate theoretically and experimentally coherence-induced polarization changes in higher-order vector vortex beams (VVBs) with polarization singularity. The prominent depolarization on decreasing the transverse correlation width in a focused partially coherent VVB provides a means to shape the intensity profile and degree of polarization (DOP ...
Stuti Joshi +4 more
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The joint effect of mid-latitude winds and the westerly quasi-biennial oscillation phase on the Antarctic stratospheric polar vortex and ozone [PDF]
Atmospheric Chemistry and PhysicsThe quasi-biennial oscillation (QBO) dynamically interacts with the extratropical atmosphere. However, the relationship between the QBO in austral winter and the Antarctic stratospheric polar vortex in spring remains unclear.
Z. Wang, J. Zhang, S. Zhao, D. Li
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Radially polarized twisted partially coherent vortex beams
Optics Express, 2022 We introduce a new type of partially coherent vector beam, named the radially polarized twisted partially coherent vortex (RPTPCV) beam. Such a beam carries the twist phase and the vortex phase simultaneously, and the initial state of polarization (SOP) is radially polarized.
Leixin, Liu +6 more
openaire +2 more sources
, 2010 The "edge" of the Antarctic polar vortex is known to behave as a barrier to the meridional (poleward) transport of ozone during the austral winter. This chemical isolation of the polar vortex from the middle and low latitudes produces an ozone minimum in
A. Berman +10 more
core +1 more source
Dynamics of Polar Vortex Crystallization
Physical Review Letters3 ...
S. Rijal +3 more
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Applications of point vortex equilibria: blocking events and the stability of the polar vortex [PDF]
Tellus: Series A, Dynamic Meteorology and Oceanography, 2015 The present study investigates non-linear dynamics of atmospheric flow phenomena on different scales as interactions of vortices. Thereby, we apply the idealised, two-dimensional concept of point vortices considering two important issues in atmospheric ...
Annette Müller +5 more
doaj +1 more source
Energetically stable singular vortex cores in an atomic spin-1 Bose-Einstein condensate
, 2012 We analyze the structure and stability of singular singly quantized vortices in a rotating spin-1 Bose-Einstein condensate. We show that the singular vortex can be energetically stable in both the ferromagnetic and polar phases despite the existence of a
Borgh, Magnus O. +2 more
core +3 more sources
Phase‐Change Perovskite Microlaser with Tunable Polarization Vortex
Advanced Materials, 2022 AbstractMetasurfaces supporting optical bound states in the continuum (BICs) are emerging as simple and compact optical cavities to realize polarization‐vortex lasers. The winding of the polarization around the singularity defines topological charges which are generally set by the cavity design and cannot be altered without changing geometrical ...
Jingyi Tian +10 more
openaire +4 more sources