Earth, Planets and Space, 2023 The impact of strong and weak stratospheric polar vortices on geomagnetic semidiurnal solar and lunar tides is investigated during Northern Hemisphere (NH) winters using ground-based magnetic field observations at the Huancayo (12.05° S, 284.67° E ...
Sunil Kumar +4 more
doaj +1 more source
Stratospheric downward wave reflection events modulate North American weather regimes and cold spells [PDF]
Weather and Climate Dynamics, 2022 The Arctic stratospheric polar vortex is an important driver of mid-latitude winter cold spells. One proposed coupling mechanism between the stratospheric polar vortex and the troposphere is upward-propagating planetary waves being reflected downward by ...
G. Messori +7 more
doaj +1 more source
Adding value to extended-range forecasts in northern Europe by statistical post-processing using stratospheric observations [PDF]
Atmospheric Chemistry and Physics, 2020 The strength of the stratospheric polar vortex influences the surface weather in the Northern Hemisphere in winter; a weaker (stronger) than average stratospheric polar vortex is connected to negative (positive) Arctic Oscillation (AO) and colder (warmer)
N. Korhonen +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 +5 more
doaj +1 more source
Arctic Stratosphere Dynamical Processes in the Winter 2021–2022
Atmosphere, 2022 The Arctic stratosphere winter season of 2021–2022 was characterized by a stable, cold stratospheric polar vortex with a volume of polar stratospheric clouds (PSC) close to the maximum values since 1980, before the beginning of minor sudden stratospheric
Pavel N. Vargin +2 more
doaj +1 more source
Geophysical Research Letters, 2023 We use Aura Microwave Limb Sounder (MLS) trace gas measurements to investigate whether water vapor (H2O) injected into the stratosphere by the Hunga Tonga‐Hunga Ha'apai (HTHH) eruption affected the 2022 Antarctic stratospheric vortex.
Gloria L. Manney +9 more
doaj +1 more source
Increased vertical resolution in the stratosphere reveals role of gravity waves after sudden stratospheric warmings [PDF]
Weather and Climate Dynamics, 2023 Sudden stratospheric warmings (SSWs) have a long-lasting effect within the stratosphere as well as impacts on the underlying troposphere. However, sub-seasonal forecasts of the winter polar stratosphere fail to use their full potential for predictability
W. Wicker +3 more
doaj +1 more source
Atmosphere, 2022 The stratospheric polar vortex is a large-scale cyclonic circulation that forms in a cold air mass in the polar region and extends from the middle troposphere to the stratosphere. The polar vortex is implicated in a variety of atmospheric processes, such
Svetlana Veretenenko
doaj +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 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
doaj +1 more source
The Antarctic stratospheric nitrogen hole: Southern Hemisphere and Antarctic springtime total nitrogen dioxide and total ozone variability as observed by Sentinel-5p TROPOMI [PDF]
Atmospheric Chemistry and PhysicsDenitrification within the stratospheric vortex is a crucial process for Antarctic ozone hole formation, resulting in an analogous stratospheric “nitrogen hole”.
A. de Laat +5 more
doaj +1 more source