Results 41 to 50 of about 538,294 (297)

Order–Disorder Transitions in a Polar Vortex Lattice [PDF]

Advanced Functional Materials, 2022
AbstractOrder–disorder transitions are widely explored in various vortex structures in condensed matter physics, that is, in the type‐II superconductors and Bose–Einstein condensates. In this study, the ordering of the polar vortex phase in [Pb(Zr0.4Ti0.6)O3]n/(SrTiO3)n (PZT/STO) superlattices is investigated through phase‐field simulations.
Zhou, Linming, Dai, Cheng, Meisenheimer, Peter, Das, Sujit, Wu, Yongjun, Gómez Ortiz, Fernando, García Fernández, Pablo (físico), Junquera Quintana, Francisco Javier, Chen, Long-Qing, Ramesh, Ramamoorthy, Hong, Zijian, Huang, Yuhui   +11 more
openaire   +5 more sources

Report on the method for determining the location of the polar vortex boundary region [PDF]

, 2003
P(論文)To determine the boundary region of the polar vortex objectively using the PV distribution on isentropic surfaces, the equivalent latitude(Eql) of the polar vortex boundary was calculated using a slightly modified form of the technique of E.R.
Yoshimatsu, Kazuyoshi, Ikeda, Yukiko, Hirota, Michio, Nagata, Kazuhiko, Fujimoto, Toshifumi, Makino, Yukio, Miyagawa, Koji   +6 more
core   +1 more source

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 Physics
The 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
doaj   +1 more source

Dynamics of Polar Vortex Crystallization

Physical Review Letters
3 ...
S. Rijal, Y. Nahas, S. Prokhorenko, L. Bellaiche   +3 more
openaire   +3 more sources

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, Peter Névir, Lisa Schielicke, Mirjam Hirt, Joscha Pueltz, Isabell Sonntag   +5 more
doaj   +1 more source

The Delayed Response of the Troposphere‐Stratosphere‐Mesosphere Coupling to the 2019 Southern SSW

Geophysical Research Letters, 2022
A strong Southern Hemisphere (SH) sudden stratospheric warming event occurred in September 2019 and significantly weakened the stratospheric polar vortex. Due to the positive zonal wind anomalies in the troposphere, the barotropic/baroclinic instability,
Chengyun Yang, Tao Li, Dexin Lai, Xinyue Wang, Xianghui Xue, Xiankang Dou   +5 more
doaj   +1 more source

Dynamics of Saturn's South Polar Vortex

Science, 2008
The camera onboard the Cassini spacecraft has allowed us to observe many of Saturn's cloud features. We present observations of Saturn's south polar vortex (SPV) showing that it shares some properties with terrestrial hurricanes: cyclonic circulation, warm central region (the eye) surrounded by a ring of high clouds (the eye wall), and convective ...
Dyudina, Ulyana A., Ingersoll, Andrew P., Ewald, Shawn P., Vasavada, Ashwin R., West, Robert A., Del Genio, Anthony D., Barbara, John M., Porco, Carolyn C., Achterberg, Richard K., Flasar, F. Michael, Simon-Miller, Amy A., Fletcher, Leigh N.   +11 more
openaire   +3 more sources

Middle atmospheric water vapour and dynamics in the vicinity of the polar vortex during the Hygrosonde-2 campaign [PDF]

Atmospheric Chemistry and Physics, 2009
The Hygrosonde-2 campaign took place on 16 December 2001 at Esrange/Sweden (68° N, 21° E) with the aim to investigate the small scale distribution of water vapour in the middle atmosphere in the vicinity of the Arctic polar vortex.
S. Lossow, M. Khaplanov, J. Gumbel, J. Stegman, G. Witt, P. Dalin, S. Kirkwood, F. J. Schmidlin, K. H. Fricke, U. Blum   +9 more
doaj  

The Stability of Mars’s Annular Polar Vortex

Journal of the Atmospheric Sciences, 2017
Abstract The Martian polar atmosphere is known to have a persistent local minimum in potential vorticity (PV) near the winter pole, with a region of high PV encircling it. This finding is surprising, since an isolated band of PV is barotropically unstable, a result going back to Rayleigh.
Seviour, William J.M., Waugh, Darryn W., Scott, Richard K.   +2 more
openaire   +3 more sources

A multi-scale comparison of polar vortices on Earth, Mars, Titan, and Venus

地球与行星物理论评
Although previous studies have analyzed the unique structural characteristics of the polar vortices on Earth, Venus, Mars, and Titan, the understanding of the polar vortices on Venus and Titan is primarily based on small-scale case studies due to the ...
Zheng Sheng, Gangyao Wu, Jie Zhang, Xiaohua Yang   +3 more
doaj   +1 more source