Results 31 to 40 of about 1,104,915 (315)

Quasi-stationary planetary waves in late winter Antarctic stratosphere temperature as a possible indicator of spring total ozone [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
Stratospheric preconditions for the annual Antarctic ozone hole are analyzed using the amplitude of quasi-stationary planetary waves in temperature as a predictor of total ozone column behaviour.
V. O. Kravchenko   +5 more
doaj   +1 more source

The Antarctic ozone hole during 2020 [PDF]

open access: yesJournal of Southern Hemisphere Earth Systems Science, 2022
The Antarctic ozone hole remains the focus of scientific attention because of its importance to the health of the biosphere and its influence on the climate of the southern hemisphere.
Gerald Nedoluha   +9 more
doaj  

Evaluating the Performance of Ozone Products Derived from CrIS/NOAA20, AIRS/Aqua and ERA5 Reanalysis in the Polar Regions in 2020 Using Ground-Based Observations

open access: yesRemote Sensing, 2021
Quantifying spatiotemporal polar ozone changes can promote our understanding of global stratospheric ozone depletion, polar ozone-related chemical processes, and atmospheric dynamics.
Hongmei Wang   +5 more
doaj   +1 more source

The impact of the mixing properties within the Antarctic stratospheric vortex on ozone loss in spring [PDF]

open access: yes, 2001
Calculations of equivalent length from an artificial advected tracer provide new insight into the isentropic transport processes occurring within the Antarctic stratospheric vortex. These calculations show two distinct regions of approximately equal area:
Adrian M. Lee   +38 more
core   +1 more source

Early indications of anomalous behaviour in the 2019 spring ozone hole over Antarctica [PDF]

open access: yesInternational Journal of Remote Sensing, 2019
The level of quasi-stationary planetary wave (QSW) activity in the Antarctic winter stratosphere provides insights into the likely behaviour of the ozone hole in the following spring months. Observation of anomalously large amplitude of the QSW in winter
G. Milinevsky   +6 more
semanticscholar   +1 more source

Potential drivers of the recent large Antarctic ozone holes

open access: yesNature Communications, 2023
The past three years (2020–2022) have witnessed the re-emergence of large, long-lived ozone holes over Antarctica. Understanding ozone variability remains of high importance due to the major role Antarctic stratospheric ozone plays in climate variability
Hannah E. Kessenich   +2 more
doaj   +1 more source

The Lagrangian structure of ozone mini-holes and potential vorticity anomalies in the Northern Hemisphere [PDF]

open access: yesAnnales Geophysicae, 2002
An ozone mini-hole is a synoptic-scale area of strongly reduced column total ozone, which undergoes a growth-decay cycle in association with baroclinic weather systems. The tracks of mini-hole events recorded during the TOMS observation period over
P. M. James   +4 more
doaj   +1 more source

Changes in the polar vortex: Effects on Antarctic total ozone observations at various stations [PDF]

open access: yes, 2011
October mean total column ozone data from four Antarctic stations form the basis for understanding the evolution of the ozone hole since 1960. While these stations show similar emergence of the ozone hole from 1960 to 1980, the records are divergent in ...
Bodeker, G. E.   +3 more
core   +1 more source

Effects of prescribed CMIP6 ozone on simulating the Southern Hemisphere atmospheric circulation response to ozone depletion [PDF]

open access: yesAtmospheric Chemistry and Physics, 2021
The Antarctic ozone hole has led to substantial changes in the Southern Hemisphere atmospheric circulation, such as the strengthening and poleward shift of the midlatitude westerly jet.
I. Ivanciu   +6 more
doaj   +1 more source

The Antarctic ozone hole during 2018 and 2019 [PDF]

open access: yesJournal of Southern Hemisphere Earth Systems Science, 2021
While the Montreal Protocol is reducing stratospheric ozone loss, recent increases in some ozone depleting substance (ODS) emissions have been identified that may impact southern hemisphere climate systems.
Gerald Nedoluha   +9 more
doaj  

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