Results 21 to 30 of about 154,413 (348)

Periods of planetary waves in geomagnetic variations [PDF]

open access: yesAnnales Geophysicae, 1995
Periods of planetary waves, especially the 10- and 16-day waves, were found in Fourier analyses of 10-year geomagnetic time series from two mid-latitude stations in the northern hemisphere.
A. Kohsiek, K. H. Glassmeier, T. Hirooka
doaj   +1 more source

Wave activity of the mesosphere in the planetary wave range according to OH (3-1) emission observations at Maimaga and Tiksi stations for 2015–2020

open access: yesSolar-Terrestrial Physics, 2022
The article compares the interannual variability of the atmosphere at the OH glow height, which can be associated with planetary wave propagation, at stations spaced in latitude. As a characteristic reflecting planetary wave activity we consider standard
Sivtseva V. I.   +4 more
doaj   +1 more source

Possible Causes of the Occurrence of a Rare Antarctic Sudden Stratospheric Warming in 2019

open access: yesAtmosphere, 2022
A minor Antarctic sudden stratospheric warming (SSW) with the strongest circulation changes since the first major SSW over the Antarctic was recorded in 2002 occurred in early September 2019.
Chenming Ma   +3 more
doaj   +1 more source

Breaking planetary waves in the stratosphere

open access: yesNature, 1983
Satellite-borne IR radiometers are turning the Earth's stratosphere into one of the best available outdoor laboratories for observing the large-scale dynamics of a rotating, heterogeneous fluid under gravity. New insight is being gained not only into stratospheric dynamics as such, with its implications for pollutant behaviour and the ozone layer, but ...
Mcintyre, M, Palmer, T
openaire   +2 more sources

Radiative effects of ozone waves on the Northern Hemisphere polar vortex and its modulation by the QBO [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
The radiative effects induced by the zonally asymmetric part of the ozone field have been shown to significantly change the temperature of the NH winter polar cap, and correspondingly the strength of the polar vortex.
V. Silverman   +4 more
doaj   +1 more source

Different Relationships between Arctic Oscillation and Ozone in the Stratosphere over the Arctic in January and February

open access: yesAtmosphere, 2021
We compare the relationship between the Arctic Oscillation (AO) and ozone concentration in the lower stratosphere over the Arctic during 1980–1994 (P1) and 2007–2019 (P2) in January and February using reanalysis datasets.
Meichen Liu, Dingzhu Hu
doaj   +1 more source

Mesospheric Inversion Layers at Mid-Latitudes and Coincident Changes of Ozone, Water Vapour and Horizontal Wind in the Middle Atmosphere

open access: yesAtmosphere, 2018
We analyse middle atmospheric profiles of temperature, geopotential height, water vapour volume mixing ratio, and ozone volume mixing ratio above Bern (46.95 ∘ N, 7.44 ∘ E).
Klemens Hocke   +3 more
doaj   +1 more source

An Ozone-Modified Refractive Index for Vertically Propagating Planetary Waves [PDF]

open access: yes, 2007
[1] An ozone-modified refractive index (OMRI) is derived for vertically propagating planetary waves using a mechanistic model that couples quasigeostrophic potential vorticity and ozone volume mixing ratio. The OMRI clarifies how wave-induced heating due
Cordero, Eugene C., Nathan, Terrence R.
core   +2 more sources

Antarctic planetary wave spectrum under different polar vortex conditions in 2019 and 2020 based on total ozone column data

open access: yesУкраїнський антарктичний журнал, 2022
We examine the zonal wavenumber spectrum of planetary (Rossby) waves in the atmosphere above Antarctica in each of two contrasting years: in 2019, when there was a sudden stratospheric warming (SSW), and in 2020 when the Antarctic stratospheric vortex ...
A. Grytsai   +5 more
doaj   +1 more source

Stratospheric Decadal Changes Simulated with the MUAM during Decembers at the End of the 20th Century

open access: yesGaoyuan qixiang, 2023
Stratospheric climate change is an important part of global change.Observational and modeling studies disclosed that the stratosphere had shown in general a cooling trend during around the last 20 years of the 20th century.Ozone depletion is believed to ...
Renqiang LIU, Jihong XIE, Ying LI
doaj   +1 more source

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