Large-scale variations in ozone from the first two years of UARS MLS data

Journal Article · Sat Oct 15 04:00:00 EDT 1994 · Journal of the Atmospheric Sciences

DOI:https://doi.org/10.1175/1520-0469(1994)051<2867:LSVIOF>2.0.CO;2· OSTI ID:41693

Elson, L S; Manney, G L; Froidevaux, L; Waters, J W ^[1]

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1. California Institute of Technology, Pasadena, CA (United States)

Two years of stratospheric measurements of ozone from the Upper Atmosphere Research Satellite Microwave Limb Sounder are examined in order to characterize large horizontal scale wave variations. The use of Fourier analysis allows the detection of variations from daily through seasonal and interannual timescales. High-latitude winter variations at 10 hPa often have very large amplitudes, but smaller midlatitude variations are more ubiquitous. Some variations have the characteristics of locally generated instabilities. Correlations of wave features with changes in the zonal-mean ozone at 10 hPa suggest the presence of significant horizontal motions during strong wintertime polar warming events. Such correlations are not evident at other levels. Spectral analysis of the large-scale variations show most waves to be slowly propagating. In contrast to some past observations, equatorial regions are shown to lack large amplitude wave events. 21 refs., 7 figs.

• OSTI ID: 41693
• Journal Information: Journal of the Atmospheric Sciences, Journal Name: Journal of the Atmospheric Sciences Journal Issue: 20 Vol. 51; ISSN 0022-4928; ISSN JAHSAK
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
ANNUAL VARIATIONS
ECOLOGICAL CONCENTRATION
OZONE
REMOTE AREAS
REMOTE SENSING
STRATOSPHERE