Results 51 to 60 of about 547,637 (160)
The stratospheric polar vortex and sudden stratospheric warmings [PDF]
The polar vortex is the dominant feature of the wintertime stratosphere. Sometimes, it is unusually strong, while at others it is very weak or destroyed in an event known as a sudden stratospheric warming (SSW). Both can play an important role in driving
Lee, Simon H., Simon H. Lee
core +1 more source
Attribution of subseasonal cold‐spell forecasts to remote drivers using nudging experiments
Nudging experiments with the European Centre for Medium‐Range Weather Forecasts (ECMWF) model show that Northern European cold spells can arise from different drivers. Some events are predominantly influenced by stratospheric dynamics, while others also involve important tropospheric processes.
Irene Erner +3 more
wiley +1 more source
Surface ozone is an important pollutant causing damage to human health and ecosystems. Here, we find that the Arctic surface ozone during the 2020–2021 winter was evidently enhanced after the sudden stratospheric warming (SSW) onset based on reanalysis ...
Yan Xia, Fei Xie, Xiao Lu
doaj +1 more source
Evaluation of the E3SM Version 3 Stratosphere Performance
Abstract The interactions between the stratosphere and the troposphere have significant impacts on human activities and Earth system variability. In the third release version of the low‐resolution Energy Exascale Earth System Model (E3SMv3), the representation of the stratosphere is improved through vertical grid refinement in the lower stratosphere ...
Wandi Yu +10 more
wiley +1 more source
A vortex dynamics perspective on stratospheric sudden warmings [PDF]
A vortex dynamics approach is used to study the underlying mechanisms leading to polar vortex breakdown during stratospheric sudden warmings (SSWs).
Matthewman, N.J.
core
Abstract Atmospheric refractivity model accuracy is important for refraction correction, starlight refraction navigation, and related optoelectronic applications. To address the insufficient understanding of refractivity temporal evolution and the lack of clear criteria for selecting model temporal resolution, this study constructs a global four ...
Zhiyan Ding, Pengfei Wu, Wenyue Zhu
wiley +1 more source
We present results of modeling of the effect of internal gravity waves (IGW), excited in the region of development of a sudden stratospheric warming (SSW), on upper atmospheric conditions.
Vasilyev P.A. +2 more
doaj +1 more source
AI Emulation of Stochastic Sudden Stratospheric Warming With Interpretable Latent Structure
Abstract Rare weather regime transitions pose a challenge for data‐driven modeling due to class imbalance. In this study, we develop a probabilistic deep learning emulator for a prototypical system with regime transitions, the stochastic Holton–Mass (HM) model of stratospheric variability, and analyze the structure of its learned latent space.
C. Daniel Boscu +6 more
wiley +1 more source
The influence of stratospheric processes on the troposphere is defined by a multifactorial mechanism containing various geophysical and photochemical processes. This interaction determines the weather and climate of a particular region of the Earth.
Zhuchkevich, V.V. +3 more
core +1 more source
The Influence of Sudden Stratospheric Warmings on Extreme European Electricity Demand
Sudden stratospheric warmings (SSWs) provide a source of surface predictability up to several weeks in advance. They generally precede cold weather across the northern midlatitudes, including extremes. When it is cold, demand for heating typically increases electricity demand.
Regan Mudhar +7 more
wiley +1 more source

