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2023
We present a comparative study of the major and minor SSWs that have occurred in the Northern Hemisphere (NH) and Southern Hemisphere (SH) over the past four decades (1981–2020) from a statistical perspective. We have investigated the frequency and timing of the occurrence of major and minor SSWsduring the specified period.
Gogoi, J. +3 more
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We present a comparative study of the major and minor SSWs that have occurred in the Northern Hemisphere (NH) and Southern Hemisphere (SH) over the past four decades (1981–2020) from a statistical perspective. We have investigated the frequency and timing of the occurrence of major and minor SSWsduring the specified period.
Gogoi, J. +3 more
openaire +2 more sources
International Journal of Remote Sensing, 2017
ABSTRACTThe Stratospheric Sudden Warming (SSW) is one of the most spectacular phenomena in the atmosphere and has impacts on the Earth’s lower, middle, and upper atmospheres. In this study, two major SSW episodes associated with vortex displacement and vortex splitting that occurred in the years 1998 and 1999, respectively, are investigated for the ...
Som Sharma +6 more
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ABSTRACTThe Stratospheric Sudden Warming (SSW) is one of the most spectacular phenomena in the atmosphere and has impacts on the Earth’s lower, middle, and upper atmospheres. In this study, two major SSW episodes associated with vortex displacement and vortex splitting that occurred in the years 1998 and 1999, respectively, are investigated for the ...
Som Sharma +6 more
openaire +1 more source
2020
<p>Midwinter sudden stratospheric warmings (SSWs), characterised by the reversal of the temperature gradient poleward of 60&#176;N and the 10 hPa climatological zonal mean wind from westerly to easterly at 60&#176;N, are known to have pronounced impacts on tropospheric circulation which lead to regional changes in
Ryan Williams +5 more
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<p>Midwinter sudden stratospheric warmings (SSWs), characterised by the reversal of the temperature gradient poleward of 60&#176;N and the 10 hPa climatological zonal mean wind from westerly to easterly at 60&#176;N, are known to have pronounced impacts on tropospheric circulation which lead to regional changes in
Ryan Williams +5 more
openaire +1 more source
Quantifying the impact of variable solar forcing on Sudden Stratospheric Warmings (SSWs)
Sudden stratospheric warmings (SSWs) are characterised by the rise of polar stratospheric temperatures by several tens of kelvins. Here, we investigate the SSW of 2009 using the ECHAM/MESSy (EMAC) chemistry climate model. We study in particular how the SSWs are affected by variable solar forcing: EUV photo-ionisation that dominates the changes during ...Monali Borthakur, Miriam Sinnhuber
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The January 2021 Sudden Stratospheric Warming and Its Prediction in Subseasonal to Seasonal Models
Journal of Geophysical Research D: Atmospheres, 2021Jian Rao, Tongwen Wu, Yixiong Lu
exaly