A stratospheric connection to Atlantic climate variability

Reichler, Thomas; Kim, Junsu; Manzini, Elisa; Kröger, Jürgen

doi:10.1038/ngeo1586

Cited by 111 publications

(102 citation statements)

References 31 publications

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“…Changes in the polar stratospheric vortex have been attributed to forcing by the upward propagation of planetary-scale Rossby waves originating in the troposphere (Andrews et al, 1987). In turn, downward dynamical propagation from the stratosphere on a timescale of months can affect longer term tropospheric dynamics and sea-surface temperature (Reichler et al, 2012). Thus there is a need to quantify short-term forcing and its long-term change in order to fully understand decadal and longer term climate changes.…”

Section: The Global Electric Circuit (Gec) and The Modulation Of J Zmentioning

confidence: 99%

Solar wind-atmospheric electricity-cloud microphysics connections to weather and climate

Lam

Tinsley

2016

Journal of Atmospheric and Solar-Terrestrial Physics

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ABSTRACT: We review recent research articles that present observations of the large-scale day-to-day dynamic tropospheric response to changes in the downward current density J z of the global atmospheric electric circuit (GEC). The evidence for the global circuit downward current density, J z , causing changes in atmospheric dynamics is now even stronger than as reviewed by Tinsley (Reports on Progress in Physics volume 71, 2008). We consider proposed mechanisms for these responses, and suggest future directions for research.

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Section: The Global Electric Circuit (Gec) and The Modulation Of J Zmentioning

confidence: 99%

Solar wind-atmospheric electricity-cloud microphysics connections to weather and climate

Lam

Tinsley

2016

Journal of Atmospheric and Solar-Terrestrial Physics

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“…For instance, whereas the sudden weakening of the stratospheric polar vortex, known as a major Sudden Stratospheric Warming (SSW) event, occurred relatively infrequently during the 1990s according to the World Meteorological Organization (WMO) definition of SSW 19 , it has occurred almost every year since 2000 (ref. 20). SSW events are often followed by a negative phase of the AO at the surface with a time lag of 1 or 2 months [21][22][23] .…”

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confidence: 99%

Weakening of the stratospheric polar vortex by Arctic sea-ice loss

et al. 2014

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Successive cold winters of severely low temperatures in recent years have had critical social and economic impacts on the mid-latitude continents in the Northern Hemisphere. Although these cold winters are thought to be partly driven by dramatic losses of Arctic sea-ice, the mechanism that links sea-ice loss to cold winters remains a subject of debate. Here, by conducting observational analyses and model experiments, we show how Arctic sea-ice loss and cold winters in extra-polar regions are dynamically connected through the polar stratosphere. We find that decreased sea-ice cover during early winter months (NovemberDecember), especially over the Barents-Kara seas, enhances the upward propagation of planetary-scale waves with wavenumbers of 1 and 2, subsequently weakening the stratospheric polar vortex in mid-winter (January-February). The weakened polar vortex preferentially induces a negative phase of Arctic Oscillation at the surface, resulting in low temperatures in mid-latitudes.

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“…Reichler et al (2012) suggested that models capable of coupling stratosphere, troposphere, and ocean can help better predict decadal climate variability. Kodera (2005) also suggested the solar modulation of ENSO through the stratosphere.…”

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confidence: 99%

“…The stratosphere can induce multi-decadal variability in the ocean circulation through the polar vortex, for instance the Atlantic Meridional Overturning Circulation (AMOC) is modulated by stratospheric dynamics (see, Reichler et al 2012). Reichler et al (2012) suggested that models capable of coupling stratosphere, troposphere, and ocean can help better predict decadal climate variability.…”

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confidence: 99%

Decadal to multi-decadal scale variability of Indian summer monsoon rainfall in the coupled ocean-atmosphere-chemistry climate model SOCOL-MPIOM

et al. 2017

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timescales over the past 400 years. The results show that AMO, PDO, and Total Solar Irradiance (TSI) play a considerable role in controlling the wet and dry decades of ISMR. Resembling observational findings most of the dry decades of ISMR occur during a negative phase of AMO and a simultaneous positive phase of PDO. The observational and simulated datasets reveal that on decadal to multi-decadal timescales the ISMR has consistent negative correlation with PDO whereas its correlation with AMO and TSI is not stationary over time.

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A stratospheric connection to Atlantic climate variability

Cited by 111 publications

References 31 publications

Solar wind-atmospheric electricity-cloud microphysics connections to weather and climate

Solar wind-atmospheric electricity-cloud microphysics connections to weather and climate

Weakening of the stratospheric polar vortex by Arctic sea-ice loss

Decadal to multi-decadal scale variability of Indian summer monsoon rainfall in the coupled ocean-atmosphere-chemistry climate model SOCOL-MPIOM

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