Time variability of total ozone in South America using TOMS data

Authors

  • Iara Regina Nocentini ANDRÉ INPE
  • Nelson Jesus FERREIRA INPE
  • Leticia Palazzi PEREZ INPE

Abstract

This paper deals with the seasonal and inter-annual variability of stratospheric ozone in South America using imagery obtained by the ozone mapping spectrometer (TOMS) instrument carried onboard the Nimbus 7 satellite. The analyses were done applying empirical orthogonal functions in monthly mean images for the jan1979 to dez1992 period. The main spatial modes of the total ozone are related to the latitudinal dependence (annual cycle), expansion of the Antarctic ozone hole, the quasi-biennial oscillation and influences of the El Niño episodes. Key-words: ozone; TOMS image; EOF.

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Published

2008-02-12

Issue

Vol. 29 No. 2 (2004)

Section

Article

License

The authors maintain the copyright and grant GEOGRAFIA the right of first publication, with the articles simultaneously licensed under the Creative Commons BY 4.0 License, which allows sharing and adapting the articles for any purpose, as long as appropriate credits and provisions of image rights, privacy or moral rights. Other legal attributions can be accessed at: https://creativecommons.org/licenses/by/4.0/legalcode.en.

 

Geography, Rio Claro, SP, Brazil - eISSN 1983-8700 is licensed under the Creative Commons BY 4.0 License.

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