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Articles 1 - 9 of 9

Full-Text Articles in Physical Sciences and Mathematics

Sources Of Gravity Waves In The Lower Stratosphere Above South Pole, Zhenhua Li, Walter Robinson, Alan Liu Aug 2013

Sources Of Gravity Waves In The Lower Stratosphere Above South Pole, Zhenhua Li, Walter Robinson, Alan Liu

Zhenhua Li

No abstract provided.


Intra-Annual Comparison Of Mesospheric Gravity Waves Over Halley And Rothera Stations, Antarctica., Jonathan R. Pugmire, Mike J. Taylor, Kim Nielsen May 2009

Intra-Annual Comparison Of Mesospheric Gravity Waves Over Halley And Rothera Stations, Antarctica., Jonathan R. Pugmire, Mike J. Taylor, Kim Nielsen

Jonathan Pugmire

As part of a collaborative program between British Antarctic Survey and Utah State University, we present an intra-annual study of short-period, mesospheric gravity wave events observed over Antarctica in the near infrared OH emission. The measurements were made using an all-sky airglow imager operated at either Halley Station on the Brunt Ice Shelf, or Rothera Station, situated on the Antarctic Peninsula. A total of six austral winter seasons have been analyzed (2000-2006). This study comprises the first detailed winter seasonal investigation of short-period mesospheric gravity waves at high-Antarctic latitudes. Distributions of their observed wave parameters were found to be similar …


Book Review: The Great Warming: Climate Change And The Rise And Fall Of Civilizations, James Fleming Feb 2009

Book Review: The Great Warming: Climate Change And The Rise And Fall Of Civilizations, James Fleming

James R. Fleming

No abstract provided.


Overturning Instability In The Mesosphere And Lower Thermosphere: Analysis Of Instability Conditions In Lidar Data, Lucas Hurd, Miguel F. Larsen, Alan Z. Liu Dec 2008

Overturning Instability In The Mesosphere And Lower Thermosphere: Analysis Of Instability Conditions In Lidar Data, Lucas Hurd, Miguel F. Larsen, Alan Z. Liu

Alan Z Liu

No abstract provided.


Gravity Wave Propagation And Dissipation From The Stratosphere To The Lower Thermosphere, Xian Lu, Alan Z. Liu, Gary R. Swenson, Tao Li Dec 2008

Gravity Wave Propagation And Dissipation From The Stratosphere To The Lower Thermosphere, Xian Lu, Alan Z. Liu, Gary R. Swenson, Tao Li

Alan Z Liu

No abstract provided.


A Model Study Of The Effects Of Winds On Concentric Rings Of Gravity Waves From A Convective Plume Near Fort Collins On 11 May 2004, Sharon L. Vadas, Jia Yue, Chiao-Yao She, Peter A. Stamus, Alan Z. Liu Dec 2008

A Model Study Of The Effects Of Winds On Concentric Rings Of Gravity Waves From A Convective Plume Near Fort Collins On 11 May 2004, Sharon L. Vadas, Jia Yue, Chiao-Yao She, Peter A. Stamus, Alan Z. Liu

Alan Z Liu

No abstract provided.


Estimate Eddy Diffusion Coefficients From Gravity Wave Vertical Momentum And Heat Fluxes, Alan Z. Liu Dec 2008

Estimate Eddy Diffusion Coefficients From Gravity Wave Vertical Momentum And Heat Fluxes, Alan Z. Liu

Alan Z Liu

No abstract provided.


Sources Of Gravity Waves In The Lower Stratosphere Above South Pole, Zhenhua Li, Walter A. Robinson, Alan Z. Liu Dec 2008

Sources Of Gravity Waves In The Lower Stratosphere Above South Pole, Zhenhua Li, Walter A. Robinson, Alan Z. Liu

Alan Z Liu

No abstract provided.


Multilayered Structures In The Ionosphere F2 Region And Impulse-Like Increase Of The Nightglow Red 630 Nm Line Intensity As A Result Of Influence Of Shear Excited Atmospheric Vortical Perturbations, G. G. Didebulidze, Levan Lomidze, N. B. Gudadze, M. Todua Dec 2008

Multilayered Structures In The Ionosphere F2 Region And Impulse-Like Increase Of The Nightglow Red 630 Nm Line Intensity As A Result Of Influence Of Shear Excited Atmospheric Vortical Perturbations, G. G. Didebulidze, Levan Lomidze, N. B. Gudadze, M. Todua

Levan Lomidze

It is shown that the formation of multilayered structures in the midlatitude ionosphere F 2 layer can be caused by atmospheric vortical perturbation (shear wave) evolving in the meridional wind with linear zonal shear and can be accompanied by an impulse-like increase (with duration about 1–3 h) in the red 630 nm line total nightglow intensity. The shear wave can produce an enhancement of the northward wind (or decrease in the southward one), which can cause a downward motion of the F 2 layer peak height resulting in the impulse-like increase in the red line intensity. An important increase in …