Two methods for stratospheric polar vortex delineation are compared by the main vortex characteristics they provide: vortex area, average wind speed at the edge, mean temperature inside the vortex. One of the methods is based on the geopotential, and another one is based on the potential ...
The semidiurnal migrating solar tide shows the largest response, with relative electron density in the F-region significantly higher ( 60%) under a weak vortex and lower ( 20%) under a strong vortex, correlated at 0.58 with the NAM index. The study compares solar/geomagnetic forcing and ...
Here we use the observed structure of the Earth's magnetic field and its variation since 1870 to infer the existence of an anticyclonic polar vortex with a polar upwelling in the northern hemisphere of the core, consistent with the polar vortices found in numerical dynamos. This is a preview ...
While El Niño is still just as strong, a major change in the jet stream pattern is already underway. One of the keys to the pattern change is the polar vortex which is expected to split into two parts, and one piece is expected to be over Northern Can...
"Talk about Polar Vortex!" the video clip was first shared by space weather physicist Tamitha Skov on Twitter. "Material from a northern prominence just broke away from the main filament & is now circulating in a massive polar vortex around the north pole of our Star." ...
including the stratospheric polar vortex route and the tropical convection pathway, both of which are projected to amplify in both the moderate- and high-... J Rao,CI Garfinkel,R Ren,... - 《Journal of Climate》 被引量: 0发表: 2023年 The Strong Stratospheric Polar Vortex in March 2020 ...
22, 207–215 (2023). Article ADS CAS PubMed MATH Google Scholar Hong, Z. et al. Stability of polar vortex lattice in ferroelectric superlattices. Nano Lett. 17, 2246–2252 (2017). Article ADS CAS PubMed MATH Google Scholar Haun, M. J. Thermodynamic Theory of the Lead-zirconate-titan...
Polar vortex puts Kentucky flood recovery efforts in jeopardy North America 04:55, 20-Feb-2025 RUSSIA'S PUTIN: RUSSIA AND U.S. ARE READY TO SET UP COOPERATION 20:25, 27-Feb-2025 RUSSIA'S SVR: IT IS TIME TO SEND A CLEAR SIGNAL TO LONDON THAT ‘NOTHING WILL COME ...
The in-plane displacement direction maps clearly reveal that unidirectional polar order dominates in the top half of the particle while a counterclockwise vortex exists in the bottom half. This corresponds to the theoretically predicted polar-toroidal multiorder (PTMO) state, in which the polar and ...
in the opposite direction at the periphery. Instead, the meronic phases can be characterized by a vanishing out-of-plane polarization at the periphery, and a non-zero value at the core. The in-plane component of the polarization presents a non-vanishing vorticity. In the case of a vortex,...