Results 41 to 50 of about 2,944 (222)
Compensation between Resolved and Unresolved Wave Drag in the Stratospheric Final Warmings of the Southern Hemisphere [PDF]
, 2015 The role of planetary wave drag and gravity wave drag in the breakdown of the stratospheric polar vortex and its associated final warming in the Southern hemisphere is examined using MERRA reanalyses, and a middle atmosphere dynamical model. The focus of
Pulido, Manuel Arturo +1 more
core +1 more source
Atmospheric Circulation Response to Short-Term Arctic Warming in an Idealized Model [PDF]
, 2020 Recent Arctic sea ice loss in fall has been posited to drive midlatitude circulation changes into winter and even spring. Past work has shown that sea ice loss can indeed trigger a weakening of the stratospheric polar vortex, which can lead to delayed ...
Hell, Momme C. +2 more
core +2 more sources
Statistical characterization of arctic polar-night jet oscillation events [PDF]
, 2013 A novel diagnostic tool is presented, based on polar-cap temperature anomalies, for visualizing daily variability of the Arctic stratospheric polar vortex over multiple decades.
Hitchcock, Peter +2 more
core +1 more source
Features of Winter Stratosphere Small-Scale Disturbance during Sudden Stratospheric Warmings
Remote Sensing, 2022 We analyzed the characteristics of small-scale wave disturbances emerging during the evolution and transformation of the jet stream (JS) in the winter stratosphere and the lower mesosphere of the northern hemisphere, including the periods of sudden ...
Anna S. Yasyukevich +4 more
doaj +1 more source
Role of gravity waves in vertical coupling during sudden stratospheric warmings
, 2016 Gravity waves are primarily generated in the lower atmosphere, and can reach thermospheric heights in the course of their propagation. This paper reviews the recent progress in understanding the role of gravity waves in vertical coupling during sudden ...
Medvedev, Alexander S., Yiğit, Erdal
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Simulations of stratospheric sudden warmings in the Berlin troposphere-stratosphere-mesosphere GCM [PDF]
Annales Geophysicae, 1996 Stratospheric sudden warming events in the Northern Hemisphere of the Berlin TSM GCM are investigated. In about 50% of the simulated years (13 out of 28), major midwinter warmings occur. This agrees well with observations but, whereas real events tend
P. Erlebach, U. Langematz, S. Pawson
doaj +1 more source
Solar-Terrestrial Physics, 2022 In this work, we perform a joint analysis of the spatial-temporal dynamics of ionospheric and stratospheric variability (with scales characteristic of internal gravity waves) at different longitudes of midlatitudes of the Northern Hemisphere.
Vesnin A. M.
doaj +1 more source
Observed connections of Arctic stratospheric ozone extremes to Northern Hemisphere surface climate [PDF]
, 2016 We present observational evidence for linkages between extreme Arctic stratospheric ozone anomalies in March and Northern Hemisphere tropospheric climate in spring (March–April). Springs characterized by low Arctic ozone anomalies in March are associated
Calvo, Natalia +3 more
core +4 more sources
How Sudden Stratospheric Warming Affects the Whole Atmosphere
Eos, 2018 High above Earth’s surface, air temperatures occasionally increase suddenly, producing widespread effects on weather, air chemistry, and telecommunications.
Pedatella, N. +8 more
openaire +6 more sources
Solar-Terrestrial Physics, 2016 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