Connections Between Stratospheric Ozone Concentrations Over the Arctic and Sea Surface Temperatures in the North Pacific

Liu, Meichen; Hu, Dingzhu; Zhang, Feng

doi:10.1029/2019jd031690

Cited by 9 publications

(9 citation statements)

References 73 publications

(106 reference statements)

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“…On the other hand, tropospheric climate exhibited a shift in the early 2000s that weakened the intensity of planetary wave activity propagating into the stratosphere 47 , which could be responsible for a portion of the larger observed value of S PFP−LM compared to results from GCMs. Shifts in patterns of sea surface temperature in the North Pacific have also been implicated as a causal factor in decreased planetary wave activity and the strengthening of the Arctic vortex 48 . The potential association of these drivers of Arctic, stratospheric temperature with climate change is an area of active research 47 .…”

Section: Ozone Loss Potential [ D ]mentioning

confidence: 99%

Climate change favours large seasonal loss of Arctic ozone

et al. 2021

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Chemical loss of Arctic ozone due to anthropogenic halogens is driven by temperature, with more loss occurring during cold winters favourable for formation of polar stratospheric clouds (PSCs). We show that a positive, statistically significant rise in the local maxima of PSC formation potential (PFPLM) for cold winters is apparent in meteorological data collected over the past half century. Output from numerous General Circulation Models (GCMs) also exhibits positive trends in PFPLM over 1950 to 2100, with highest values occurring at end of century, for simulations driven by a large rise in the radiative forcing of climate from greenhouse gases (GHGs). We combine projections of stratospheric halogen loading and humidity with GCM-based forecasts of temperature to suggest that conditions favourable for large, seasonal loss of Arctic column O3 could persist or even worsen until the end of this century, if future abundances of GHGs continue to steeply rise.

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Section: Ozone Loss Potential [ D ]mentioning

confidence: 99%

Climate change favours large seasonal loss of Arctic ozone

et al. 2021

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“…To explore the changes in zonal-mean ozone concentration, the following equation will be examined in the log-pressure coordinates (Liu et al, 2020;Monier & Weare, 2011;Z. Wang et al, 2021): where,…”

Section: Methodsmentioning

confidence: 99%

Influence of Asian Topography on the Arctic Stratospheric Ozone

Wang,

Duan,

Pan

2023

JGR Atmospheres

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Evaluating the impact of topography on stratospheric ozone is a crucial step toward achieving a deeper comprehension of the role of topography uplift in driving paleoclimatic evolution and stratospheric dynamics and chemistry. This paper quantitatively estimates the contribution of Asian topography to Arctic stratospheric ozone by topography experiments in the Whole Atmosphere Community Climate Model version 6. The results indicate that Asian topography exerts an especially robust influence on Arctic stratospheric ozone during winter. Compared to the flattened topography, Asian topography significantly increases the ozone by 15% in the lower Arctic stratosphere, accompanied by the highest accumulation of total ozone appearing in the polar region north to the North American continent. The intensified residual mean circulation transport is principally responsible for the increase in ozone, and Asian topography has a stronger impact on the vertical residual mean transport than on the meridional residual mean transport. Further examination demonstrates that the robust strengthening of planetary waves caused by Asian topography significantly contributes to the enhancement of the residual mean circulation. Specifically, the upper Arctic stratosphere experiences a 42.7% increase in the amplitude of planetary waves with wavenumber 1, which means the weakened polar vortex. The diagnosis of the mean Lorenz energy cycle further indicates that Asian topography decreases the zonal mean kinetic energy and increases the eddy kinetic energy in the stratosphere. Therefore, the enhancement of residual mean circulation transport and the weakening of the polar vortex both work together to promote the accumulation of Arctic ozone.

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“…Planetary waves play a key role in the interaction between the stratospheric and tropospheric circulation (Kodera et al ., 2008; Hu et al ., 2018; Liu et al ., 2020; Matthias and Kretschmer, 2020). We used the Plumb flux (Plumb, 1985) to measure the strength and propagation of planetary waves in the stratosphere.…”

Section: The Role Of Sswmentioning

confidence: 99%

An extreme cold event over East Asia during early January 2021 and its links to the deformation of stratospheric polar vortex during sudden stratospheric warming

Liu

Guan

2023

Intl Journal of Climatology

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In early winter of 2020/2021, East Asia experienced two extreme cold events (ECEs), during which a number of national stations in China reached the standard of ECE or broke records. The underlying dynamical processes of these record‐breaking ECEs are investigated using Modern‐Era Retrospective Analysis for Research and Applications version 2 reanalysis dataset. Results show that these ECEs were closely related to the sudden stratospheric warming (SSW) event. During 29 December, 2020–1 January, 2021 (the first ECE), the tropospheric polar vortex migrated to mid‐latitude East Asia and more planetary wave propagated into the stratosphere. Then, the stratospheric polar vortex weakened and extended to mid‐latitude East Asia from 2 January. And, a SSW event occurred on 5 January. The easterly zonal wind accompanied by the deformation of stratospheric polar vortex over East Asia tended to strengthen the East Asian trough via reflecting the planetary wave from the stratosphere to troposphere. Simultaneously, the southward shifting of the Ural ridge resulted in the extremely strong East Asian trough migrating southward, which led to the strengthening and southward migration of near‐surface anticyclonic circulation. Then, another ECE broke out during 6–7 January (the second ECE). Therefore, the ECE in early January was jointly caused by the combined effects of deformation of stratospheric polar vortex during SSW event and the southward shifting of Ural ridge. Further analysis suggested that about 8% of the total ECEs during 1980/1981–2019/2020 were related to the extension of stratospheric polar vortex to East Asia.

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Connections Between Stratospheric Ozone Concentrations Over the Arctic and Sea Surface Temperatures in the North Pacific

Cited by 9 publications

References 73 publications

Climate change favours large seasonal loss of Arctic ozone

Climate change favours large seasonal loss of Arctic ozone

Influence of Asian Topography on the Arctic Stratospheric Ozone

An extreme cold event over East Asia during early January 2021 and its links to the deformation of stratospheric polar vortex during sudden stratospheric warming

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