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Surface Amplification of Stratospheric Sudden Warming by Poleward Mass Flux in the Upper Troposphere and Lower Stratosphere.

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Title: Surface Amplification of Stratospheric Sudden Warming by Poleward Mass Flux in the Upper Troposphere and Lower Stratosphere.
Authors: Hong, Dong-Chan1 (AUTHOR), Son, Seok-Woo1 (AUTHOR) seokwooson@snu.ac.kr
Source: Journal of Climate. Oct2025, Vol. 38 Issue 19, p5069-5082. 14p.
Subjects: Stratosphere, Atmospheric pressure, Atmospheric physics, Climate change, Weather, Rossby waves, Troposphere, Mass transfer
Geographic Terms: Arctic regions
Abstract: Stratospheric sudden warming (SSW) is the most dramatic event in the winter polar stratosphere, characterized by a rapid temperature increase and a reversal of climatological westerly to easterly. Due to its significant and long-lasting impact on surface climate, SSW and its amplification at the surface have been extensively studied. However, the mechanism underlying the surface impact of SSW remains unclear. In this study, we show that the SSW-induced tropospheric anomaly, which amplifies at the surface, is primarily caused by an increase in Arctic surface pressure. The increase of Arctic surface pressure results from a poleward mass flux across the Arctic Circle, which is determined by the poleward propagation of planetary-scale waves in the upper troposphere and lower stratosphere, in response to the mean flow change in the lowermost stratosphere during the SSW. This result suggests that planetary-scale waves are critical not only for SSW onset but also for its surface amplification right after SSW onset. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Climate is the property of American Meteorological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 187865190
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Surface Amplification of Stratospheric Sudden Warming by Poleward Mass Flux in the Upper Troposphere and Lower Stratosphere.
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  Data: <searchLink fieldCode="AR" term="%22Hong%2C+Dong-Chan%22">Hong, Dong-Chan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Son%2C+Seok-Woo%22">Son, Seok-Woo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> seokwooson@snu.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Climate%22">Journal of Climate</searchLink>. Oct2025, Vol. 38 Issue 19, p5069-5082. 14p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Stratosphere%22">Stratosphere</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+pressure%22">Atmospheric pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+physics%22">Atmospheric physics</searchLink><br /><searchLink fieldCode="DE" term="%22Climate+change%22">Climate change</searchLink><br /><searchLink fieldCode="DE" term="%22Weather%22">Weather</searchLink><br /><searchLink fieldCode="DE" term="%22Rossby+waves%22">Rossby waves</searchLink><br /><searchLink fieldCode="DE" term="%22Troposphere%22">Troposphere</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+transfer%22">Mass transfer</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Arctic+regions%22">Arctic regions</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Stratospheric sudden warming (SSW) is the most dramatic event in the winter polar stratosphere, characterized by a rapid temperature increase and a reversal of climatological westerly to easterly. Due to its significant and long-lasting impact on surface climate, SSW and its amplification at the surface have been extensively studied. However, the mechanism underlying the surface impact of SSW remains unclear. In this study, we show that the SSW-induced tropospheric anomaly, which amplifies at the surface, is primarily caused by an increase in Arctic surface pressure. The increase of Arctic surface pressure results from a poleward mass flux across the Arctic Circle, which is determined by the poleward propagation of planetary-scale waves in the upper troposphere and lower stratosphere, in response to the mean flow change in the lowermost stratosphere during the SSW. This result suggests that planetary-scale waves are critical not only for SSW onset but also for its surface amplification right after SSW onset. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Climate is the property of American Meteorological Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1175/JCLI-D-24-0597.1
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 14
        StartPage: 5069
    Subjects:
      – SubjectFull: Stratosphere
        Type: general
      – SubjectFull: Atmospheric pressure
        Type: general
      – SubjectFull: Atmospheric physics
        Type: general
      – SubjectFull: Climate change
        Type: general
      – SubjectFull: Weather
        Type: general
      – SubjectFull: Rossby waves
        Type: general
      – SubjectFull: Troposphere
        Type: general
      – SubjectFull: Mass transfer
        Type: general
      – SubjectFull: Arctic regions
        Type: general
    Titles:
      – TitleFull: Surface Amplification of Stratospheric Sudden Warming by Poleward Mass Flux in the Upper Troposphere and Lower Stratosphere.
        Type: main
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          Name:
            NameFull: Hong, Dong-Chan
      – PersonEntity:
          Name:
            NameFull: Son, Seok-Woo
    IsPartOfRelationships:
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          Dates:
            – D: 01
              M: 10
              Text: Oct2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 08948755
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            – Type: volume
              Value: 38
            – Type: issue
              Value: 19
          Titles:
            – TitleFull: Journal of Climate
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