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

Zhao, Jian; Chu, Xinzhao; Chen, Cao; Lu, Xian; Fong, Weichun; Yu, Zhibin; Michael Jones, R.; Roberts, Brendan R.; Dörnbrack, Andreas

doi:10.1002/2016jd026368

i

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

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2017
By Zhao, Jian ; Chu, Xinzhao ; Chen, Cao ; ...

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Journal Title:

Journal of Geophysical Research: Atmospheres
Personal Author:

Zhao, Jian ; Chu, Xinzhao ; Chen, Cao ; Lu, Xian ; Fong, Weichun ; Yu, Zhibin ; Michael Jones, R. ; Roberts, Brendan R. ; Dörnbrack, Andreas
NOAA Program & Office:

CIRES (Cooperative Institute for Research in Environmental Sciences)
Description:

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 ofstratospheric gravity waves from 30 to 50 km altitudes. Over 1000 dominant gravity wave events are identi ﬁed 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 thedownward 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%. The seasonal and monthly mean vertical wavelengths and periods exhibit clear seasonal cycles with vertical wavelengthgrowing from summer ~5.5 km to winter ~8.5 km, and period increasing from summer ~4.5 h to winter ~6 h.
Keywords:

Atmospheric Science Earth And Planetary Sciences (miscellaneous) Geophysics Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Space And Planetary Science Earth And Planetary Sciences (miscellaneous) Space And Planetary Science
Source:

Journal of Geophysical Research: Atmospheres, 122(10), 5041-5062
DOI:

https://doi.org/10.1002/2016jd026368
ISSN:

2169-897X ; 2169-8996
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PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
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urn:sha256:ed788b0e86602c4417f00cb91254e053b5449872f8f03d0f5c029c99211a1ed4
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https://repository.library.noaa.gov/view/noaa/55204/noaa_55204_DS1.pdf
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