Numerical and Statistical Evidence for Long-Range Ducted Gravity Wave Propagation Over Halley, Antarctica

J. B. Snively; K. Nielsen; M. P. Hickey; C. J. Heale; M. J. Taylor; T. Moffat-Griffin

doi:10.1002/grl.50926

Numerical and Statistical Evidence for Long-Range Ducted Gravity Wave Propagation Over Halley, Antarctica

J. B. Snively, K. Nielsen, M. P. Hickey, C. J. Heale, M. J. Taylor, T. Moffat-Griffin

Physical Sciences

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

Abstract

<p> Abundant short-period, small-scale gravity waves have been identi&filig;ed in the mesosphere and lower thermosphere over Halley, Antarctica, via ground-based airglow image data. Although many are observed as freely propagating at the heights of the airglow layers, new results under modeled conditions reveal that a signi&filig;cant fraction of these waves may be subject to re&fllig;ections at altitudes above and below.The waves may at times be trapped within broad thermal ducts, spanning from the tropopause or stratopause to the base of the thermosphere (~140 km), which may facilitate long-range propagation (~1000s of km) under favorable wind conditions.</p>

Original language	American English
Journal	Geophysical Research Letters
Volume	40
DOIs	https://doi.org/10.1002/grl.50926
State	Published - Sep 20 2013

Keywords

gravity waves
airglow
ducting
Airglow and aurora
Acoustic-gravity waves

Disciplines

Atmospheric Sciences

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10.1002/grl.50926License: CC BY

Numerical and Statistical Evidence for Long-Range Ducted GravityFinal published version, 944 KBLicense: CC BY
Numerical and Statistical Evidence for Long-Range Ducted GravityFinal published version, 944 KBLicense: CC BY

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title = "Numerical and Statistical Evidence for Long-Range Ducted Gravity Wave Propagation Over Halley, Antarctica",

abstract = " Abundant short-period, small-scale gravity waves have been identi&filig;ed in the mesosphere and lower thermosphere over Halley, Antarctica, via ground-based airglow image data. Although many are observed as freely propagating at the heights of the airglow layers, new results under modeled conditions reveal that a signi&filig;cant fraction of these waves may be subject to re&fllig;ections at altitudes above and below.The waves may at times be trapped within broad thermal ducts, spanning from the tropopause or stratopause to the base of the thermosphere (~140 km), which may facilitate long-range propagation (~1000s of km) under favorable wind conditions.",

keywords = "gravity waves, airglow, ducting, Airglow and aurora, Acoustic-gravity waves",

author = "Snively, {J. B.} and K. Nielsen and Hickey, {M. P.} and Heale, {C. J.} and Taylor, {M. J.} and T. Moffat-Griffin",

note = "Snively, J. B., K. Nielsen, M. P. Hickey, C. J. Heale, M. J. Taylor, and T. Moffat-Griffin (2013), Numerical and statistical evidence for long-range ducted gravity wave propagation over Halley, Antarctica, Geophys. Res. Lett., 40, doi:10.1002/grl.50926.",

year = "2013",

month = sep,

day = "20",

doi = "10.1002/grl.50926",

language = "American English",

volume = "40",

journal = "Geophysical Research Letters",

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TY - JOUR

T1 - Numerical and Statistical Evidence for Long-Range Ducted Gravity Wave Propagation Over Halley, Antarctica

AU - Snively, J. B.

AU - Nielsen, K.

AU - Hickey, M. P.

AU - Heale, C. J.

AU - Taylor, M. J.

AU - Moffat-Griffin, T.

N1 - Snively, J. B., K. Nielsen, M. P. Hickey, C. J. Heale, M. J. Taylor, and T. Moffat-Griffin (2013), Numerical and statistical evidence for long-range ducted gravity wave propagation over Halley, Antarctica, Geophys. Res. Lett., 40, doi:10.1002/grl.50926.

PY - 2013/9/20

Y1 - 2013/9/20

N2 - Abundant short-period, small-scale gravity waves have been identi&filig;ed in the mesosphere and lower thermosphere over Halley, Antarctica, via ground-based airglow image data. Although many are observed as freely propagating at the heights of the airglow layers, new results under modeled conditions reveal that a signi&filig;cant fraction of these waves may be subject to re&fllig;ections at altitudes above and below.The waves may at times be trapped within broad thermal ducts, spanning from the tropopause or stratopause to the base of the thermosphere (~140 km), which may facilitate long-range propagation (~1000s of km) under favorable wind conditions.

AB - Abundant short-period, small-scale gravity waves have been identi&filig;ed in the mesosphere and lower thermosphere over Halley, Antarctica, via ground-based airglow image data. Although many are observed as freely propagating at the heights of the airglow layers, new results under modeled conditions reveal that a signi&filig;cant fraction of these waves may be subject to re&fllig;ections at altitudes above and below.The waves may at times be trapped within broad thermal ducts, spanning from the tropopause or stratopause to the base of the thermosphere (~140 km), which may facilitate long-range propagation (~1000s of km) under favorable wind conditions.

KW - gravity waves

KW - airglow

KW - ducting

KW - Airglow and aurora

KW - Acoustic-gravity waves

UR - https://commons.erau.edu/publication/23

U2 - 10.1002/grl.50926

DO - 10.1002/grl.50926

M3 - Article

VL - 40

JO - Geophysical Research Letters

JF - Geophysical Research Letters

ER -

Numerical and Statistical Evidence for Long-Range Ducted Gravity Wave Propagation Over Halley, Antarctica

Abstract

Keywords

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