Results 91 to 100 of about 2,944 (222)
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.Abstract The variational autoencoder (VAE), a deep generative model, can extract a good feature representation for clustering from complex data; however, the use of this algorithm in the geophysical fluid circulation has been limited. The sample size for a geophysical phenomenon is generally small because of a large dimensional size, especially for ...
Kunihiro Aoki +7 more
wiley +1 more source
Topography Dominates the Hemispheric Asymmetry of Stratospheric Sudden Warmings
Geophysical Research LettersStratospheric sudden warmings (SSWs) predominantly occur in the Northern Hemisphere (NH) with only 1 major event recorded in the Southern Hemisphere in the satellite era.
Siming Liu +2 more
doaj +1 more source
The genesis of sudden stratospheric warmings and the quasi-biennial cycles [PDF]
Genesis of sudden stratospheric warmings and quasi-biennial ...
Smith, J. W.
core +1 more source
Stratosphere - troposphere coupling by planetary waves [PDF]
, 2011 The stratosphere and troposphere exhibit strong coupling during the active seasons of the stratosphere (winter/spring in the Northern/Southern Hemispheres), which are characterized by bursts of planetary-scale Rossby waves and by large stratospheric wind
Domeisen, Daniela I.V., Plumb, R. Alan
core
Variable influence on the equatorial troposphere associated with SSW using ERA-Interim [PDF]
, 2017 Sudden stratospheric warming (SSW) events are identified to investigate their influence on the equatorial tropospheric climate. Composite analysis of warming events from Era-Interim (1979–2013) record a cooling of the tropical lower stratosphere with ...
Bal, Sourabh +3 more
core +1 more source
Space Weather, Volume 24, Issue 4, April 2026.Abstract Thermospheric neutral density controls satellite drag in low Earth orbit and varies strongly during geomagnetic storms. We present a multi‐mission, phase‐resolved assessment of empirical and physics‐based thermosphere models using 151 storms from 2001 to 2023, including MSIS, DTM, JB2008, WAM‐IPE, WACCM‐X, GITM, CTIPe, and TIE‐GCM.
Jack C. Wang +11 more
wiley +1 more source
Sensitivity of Sudden Stratospheric Warmings to Previous Stratospheric Conditions
Journal of the Atmospheric Sciences, 2017 AbstractThe Whole Atmosphere Community Climate Model, version 4 (WACCM4), is used to investigate the influence of stratospheric conditions on the development of sudden stratospheric warmings (SSWs). To this end, targeted experiments are performed on selected modeled SSW events.
Alvaro de la Cámara +6 more
openaire +1 more source
Winter Anomaly 1982/83 in Comparison with Earlier Winters (1960-82) [PDF]
, 1984 The winter anomaly in the winter of 1982/83 is compared with the winter anomalies of earlier winters (1960-82) from the point of view of amplitude and timing of the winter anomaly, and geomagnetic and dynamic activity influences.
Lastovicka, J.
core +1 more source
The Effects of Different Sudden Stratospheric Warming Type on the Ocean:Ocean Impacts of SSWs [PDF]
, 2014 There is a confirmed link between sudden stratospheric warmings (SSWs) and surface weather. Here we find significant differences in the strength of surface and ocean responses for splitting and displacement SSWs, classified using a new straightforward ...
Amee O'Callaghan +25 more
core +1 more source
The Prediction of Short‐Term Atmospheric Density in Lower Thermosphere
Space Weather, Volume 24, Issue 4, April 2026.Abstract Accurate short‐term prediction of atmospheric density in the lower thermosphere (85–125 km) is essential for precise orbit determination and satellite drag mitigation, particularly during geomagnetic storms. Although physics‐based models such as NRLMSIS 2.1 provide empirical estimates, their effectiveness is limited under extreme space weather.
Zheng Li +4 more
wiley +1 more source