Descent of long-lived trace gases in the winter polar vortex

J. T. Bacmeister; M. R. Schoeberl; M. E. Summers; J. R. Rosenfield; Zhu Xun Zhu

doi:10.1029/94jd02958

Descent of long-lived trace gases in the winter polar vortex

J. T. Bacmeister, M. R. Schoeberl, M. E. Summers, J. R. Rosenfield, Zhu Xun Zhu

Atmospheric Modeling and Predictability

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

Recent observations of CH₄ and HF from the UARS Halogen Limb Occulation Experiment (HALOE) suggest that vigorous descent occurs within the polar winter vortex with "mesospheric' values of CH₄ evident down to 30 mbar. This study shows that a highly accurate two-dimensional model advection scheme coupled with a modern radiation scheme, parameterized planetary and gravity wave drag algorithms can produce trace distributions consistent with HALOE observations. The modeled tracer distribution within the polar vortex is found to be principally dependent on the strength of dynamic drag in the middle atmosphere and the strength of the planetary wave forcing. -from Authors

Original language	English
Pages (from-to)	11,669-11,684
Journal	Journal of Geophysical Research
Volume	100
Issue number	D6
DOIs	https://doi.org/10.1029/94jd02958
State	Published - 1995

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10.1029/94jd02958

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title = "Descent of long-lived trace gases in the winter polar vortex",

abstract = "Recent observations of CH4 and HF from the UARS Halogen Limb Occulation Experiment (HALOE) suggest that vigorous descent occurs within the polar winter vortex with {"}mesospheric' values of CH4 evident down to 30 mbar. This study shows that a highly accurate two-dimensional model advection scheme coupled with a modern radiation scheme, parameterized planetary and gravity wave drag algorithms can produce trace distributions consistent with HALOE observations. The modeled tracer distribution within the polar vortex is found to be principally dependent on the strength of dynamic drag in the middle atmosphere and the strength of the planetary wave forcing. -from Authors",

author = "Bacmeister, \{J. T.\} and Schoeberl, \{M. R.\} and Summers, \{M. E.\} and Rosenfield, \{J. R.\} and \{Xun Zhu\}, Zhu",

year = "1995",

doi = "10.1029/94jd02958",

language = "English",

volume = "100",

pages = "11,669--11,684",

journal = "Journal of Geophysical Research",

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T1 - Descent of long-lived trace gases in the winter polar vortex

AU - Bacmeister, J. T.

AU - Schoeberl, M. R.

AU - Summers, M. E.

AU - Rosenfield, J. R.

AU - Xun Zhu, Zhu

PY - 1995

Y1 - 1995

N2 - Recent observations of CH4 and HF from the UARS Halogen Limb Occulation Experiment (HALOE) suggest that vigorous descent occurs within the polar winter vortex with "mesospheric' values of CH4 evident down to 30 mbar. This study shows that a highly accurate two-dimensional model advection scheme coupled with a modern radiation scheme, parameterized planetary and gravity wave drag algorithms can produce trace distributions consistent with HALOE observations. The modeled tracer distribution within the polar vortex is found to be principally dependent on the strength of dynamic drag in the middle atmosphere and the strength of the planetary wave forcing. -from Authors

AB - Recent observations of CH4 and HF from the UARS Halogen Limb Occulation Experiment (HALOE) suggest that vigorous descent occurs within the polar winter vortex with "mesospheric' values of CH4 evident down to 30 mbar. This study shows that a highly accurate two-dimensional model advection scheme coupled with a modern radiation scheme, parameterized planetary and gravity wave drag algorithms can produce trace distributions consistent with HALOE observations. The modeled tracer distribution within the polar vortex is found to be principally dependent on the strength of dynamic drag in the middle atmosphere and the strength of the planetary wave forcing. -from Authors

UR - https://www.scopus.com/pages/publications/0029531143

U2 - 10.1029/94jd02958

DO - 10.1029/94jd02958

M3 - Article

AN - SCOPUS:0029531143

SN - 0148-0227

VL - 100

SP - 11,669-11,684

JO - Journal of Geophysical Research

JF - Journal of Geophysical Research

IS - D6

ER -

Descent of long-lived trace gases in the winter polar vortex

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