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Ground-to-Stratopause Trapped Lee Waves Observed Downstream of the Kerguelen and Heard Islands.

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Title: Ground-to-Stratopause Trapped Lee Waves Observed Downstream of the Kerguelen and Heard Islands.
Authors: Eckermann, Stephen D.1 (AUTHOR) stephen.eckermann.civ@us.navy.mil, Broutman, Dave2 (AUTHOR), Doyle, James D.3 (AUTHOR)
Source: Journal of the Atmospheric Sciences. Jan2026, Vol. 83 Issue 1, p87-103. 17p.
Subjects: Mountain wave, Stratosphere, Ocean, Infrared radiometry, Atmospheric waves, Theory of wave motion, Islands
Abstract: Thermal infrared satellite radiances acquired from stratospheric channels during regular Aqua satellite overpasses of the Southern Ocean in July 2014 revealed unusual short-wavelength structure extending many hundreds of kilometers downstream of the Kerguelen and Heard Islands. Although near the limits of detection in nadir swath imagery, careful analysis and cross validation verify the structure to be geophysical. Theory, reanalysis, modeling, and available observations are combined to show that these features are resonant trapped island lee waves established by successive downstream vertical reflections from a strong stratopause jet and the ocean surface. This is the first definitive proof that resonant trapped lee-wave disturbances can extend to stratopause altitudes at around 40–50 km. Possible implications of this new form of stratospheric wave dynamics are discussed. [ABSTRACT FROM AUTHOR]
Copyright of Journal of the Atmospheric Sciences 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.)
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An: 191573040
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  Data: Ground-to-Stratopause Trapped Lee Waves Observed Downstream of the Kerguelen and Heard Islands.
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  Data: <searchLink fieldCode="AR" term="%22Eckermann%2C+Stephen+D%2E%22">Eckermann, Stephen D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> stephen.eckermann.civ@us.navy.mil</i><br /><searchLink fieldCode="AR" term="%22Broutman%2C+Dave%22">Broutman, Dave</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Doyle%2C+James+D%2E%22">Doyle, James D.</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+the+Atmospheric+Sciences%22">Journal of the Atmospheric Sciences</searchLink>. Jan2026, Vol. 83 Issue 1, p87-103. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Mountain+wave%22">Mountain wave</searchLink><br /><searchLink fieldCode="DE" term="%22Stratosphere%22">Stratosphere</searchLink><br /><searchLink fieldCode="DE" term="%22Ocean%22">Ocean</searchLink><br /><searchLink fieldCode="DE" term="%22Infrared+radiometry%22">Infrared radiometry</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+waves%22">Atmospheric waves</searchLink><br /><searchLink fieldCode="DE" term="%22Theory+of+wave+motion%22">Theory of wave motion</searchLink><br /><searchLink fieldCode="DE" term="%22Islands%22">Islands</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Thermal infrared satellite radiances acquired from stratospheric channels during regular Aqua satellite overpasses of the Southern Ocean in July 2014 revealed unusual short-wavelength structure extending many hundreds of kilometers downstream of the Kerguelen and Heard Islands. Although near the limits of detection in nadir swath imagery, careful analysis and cross validation verify the structure to be geophysical. Theory, reanalysis, modeling, and available observations are combined to show that these features are resonant trapped island lee waves established by successive downstream vertical reflections from a strong stratopause jet and the ocean surface. This is the first definitive proof that resonant trapped lee-wave disturbances can extend to stratopause altitudes at around 40–50 km. Possible implications of this new form of stratospheric wave dynamics are discussed. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of the Atmospheric Sciences 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:
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      – Type: doi
        Value: 10.1175/JAS-D-25-0087.1
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      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 17
        StartPage: 87
    Subjects:
      – SubjectFull: Mountain wave
        Type: general
      – SubjectFull: Stratosphere
        Type: general
      – SubjectFull: Ocean
        Type: general
      – SubjectFull: Infrared radiometry
        Type: general
      – SubjectFull: Atmospheric waves
        Type: general
      – SubjectFull: Theory of wave motion
        Type: general
      – SubjectFull: Islands
        Type: general
    Titles:
      – TitleFull: Ground-to-Stratopause Trapped Lee Waves Observed Downstream of the Kerguelen and Heard Islands.
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            NameFull: Eckermann, Stephen D.
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            NameFull: Broutman, Dave
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            NameFull: Doyle, James D.
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            – D: 01
              M: 01
              Text: Jan2026
              Type: published
              Y: 2026
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              Value: 83
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            – TitleFull: Journal of the Atmospheric Sciences
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