Lidar observations of stratospheric gravity waves from 2011 to 2015 at McMurdo (77.84°S, 166.69°E), Antarctica: 1. Vertical wavelengths, periods, and frequency and vertical wave number spectra

Five years of atmospheric temperature data, collected with an Fe Boltzmann lidar by the University of Colorado group from 2011 to 2015 at Arrival Heights, are used to characterize the vertical wavelengths, periods, vertical phase speeds, frequency spectra, and vertical wave number spectra of stratos...

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Bibliographic Details
Published in:Journal of Geophysical Research: Atmospheres
Main Authors: Zhao, Jian, Chu, Xinzhao, Chen, Cao, Lu, Xian, Fong, Weichun, Yu, Zhibin, Michael Jones, R., Roberts, Brendan R., Dörnbrack, Andreas
Format: Other Non-Article Part of Journal/Newspaper
Language:English
Published: Wiley 2017
Subjects:
Verkehrsmeteorologie
Arrival Heights
Antarc*
Antarctica
E. Antarctica
Online Access:https://elib.dlr.de/113779/
https://elib.dlr.de/113779/1/Lidar-observation-of-stratospheric-gravity-Zhao-AGU.pdf
http://onlinelibrary.wiley.com/doi/10.1002/2016JD026368/pdf
https://doi.org/10.1002/2016JD026368
Description
Summary:Five years of atmospheric temperature data, collected with an Fe Boltzmann lidar by the University of Colorado group from 2011 to 2015 at Arrival Heights, are used to characterize the vertical wavelengths, periods, vertical phase speeds, frequency spectra, and vertical wave number spectra of stratospheric gravity waves from 30 to 50 km altitudes. Over 1000 dominant gravity wave events are identified from the data. The seasonal spectral distributions of vertical wavelengths, periods, and vertical phase speeds in summer, winter, and spring/fall are found obeying a lognormal distribution. Both the downward and upward phase progression gravity waves are observed by the lidar, and the fractions of gravity waves with downward phase progression increase from summer ~59% to winter ~70%.

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