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Proceedings Paper

Spatiotemporal variability of total column ozone derived from TOMS using rotated principal component analysis
Author(s): Sharon K. LeDuc; Brian K. Eder; Lawrence Truppi
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Paper Abstract

The global distribution of total column ozone ((Omega) ) is attracting great international attention as concerns over reduced global abundances escalate. Detection of a trend is an arduous task, made difficult by numerous natural inter- and intra-annual fluctuations, many of which are not well understood. Accordingly, this study analyzes these natural variations (across all spatial and temporal scales) through the application of rotated principal component analysis (PCA) to the (Omega) data derived from version 6.0 TOMS (total ozone mapping spectrometer) for the period 1984-1989. Utilization of Kaiser's varimax orthogonal rotation allowed delineation of eleven homogeneous subregions that together accounted for 74.08% of the total variance. Each subregion displayed statistically unique (Omega) characteristics that were further examined through time series and spectral analysis, allowing identification of the probable phenomena (i.e. annual and semiannual cycles, QBO, ENSO, baroclinic waves) responsible for the variability of (Omega) .

Paper Details

Date Published: 15 December 1995
PDF: 12 pages
Proc. SPIE 2582, Atmospheric Sensing and Modeling II, (15 December 1995); doi: 10.1117/12.228537
Show Author Affiliations
Sharon K. LeDuc, National Oceanic and Atmospheric Administration (United States)
Brian K. Eder, National Oceanic and Atmospheric Administration (United States)
Lawrence Truppi, National Oceanic and Atmospheric Administration (United States)

Published in SPIE Proceedings Vol. 2582:
Atmospheric Sensing and Modeling II
Richard P. Santer, Editor(s)

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