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Low frequency oscillations in total ozone measurementsLow frequency oscillations with periods of approximately one to two months are found in eight years of global grids of total ozone data from the Total Ozone Mapping Spectrometer (TOMS) satellite instrument. The low frequency oscillations corroborate earlier analyses based on four years of data. In addition, both annual and seasonal one-point correlation maps based on the 8-year TOMS data are presented. The results clearly show a standing dipole in ozone perturbations, oscillating with 35 to 50 day periods over the equatorial Indian Ocean-west Pacific region. This contrasts with the eastward moving dipole reported in other data sets. The standing ozone dipole appears to be a dynamical feature associated with vertical atmospheric motions. Consistent with prior analyses based on lower stratospheric temperature fields, large-scale standing patterns are also found in the extratropics of both hemispheres, correlated with ozone fluctuations over the equatorial west Pacific. In the Northern Hemisphere, a standing pattern is observed extending from the tropical Indian Ocean to the north Pacific, across North America, and down to the equatorial Atlantic Ocean region. This feature is most pronounced in the NH summer.
Document ID
19890008014
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Gao, X. H. (Iowa State Univ. of Science and Technology Ames, IA, United States)
Stanford, J. L. (Iowa State Univ. of Science and Technology Ames, IA, United States)
Date Acquired
September 5, 2013
Publication Date
January 1, 1989
Subject Category
Meteorology And Climatology
Report/Patent Number
NASA-CR-184759
NAS 1.26:184759
Accession Number
89N17385
Funding Number(s)
CONTRACT_GRANT: NAG5-1060
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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