Ozone and UV-B radiation anticorrelations at fixed solar zenith angles in southern Brazil

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Ricardo André Guarnieri
Fernando Luís Guarnieri
Danieli Balbueno Contreira
Liana Franco Padilha
Ezequiel Echer
Damaris Kirsch Pinheiro
Augusta Maria Passaglia Schuch
Kazuo Makita
Nelson Jorge Schuch

Abstract

Anticorrelation behavior between total ozone column and UV-B radiation was observed for clear sky conditions during the year 2000 at the Southern Space Observatory OES/CRSPE/INPE - MCT (29.44°S, 53.82°W) located in the southern part of Brazil. To eliminate geometrical dependence of the solar angular position in relation to the instrument, UV-B radiation was measured at fixed solar zenith angles. The UV-B radiation (280-315 nm) was measured by an Eko Instruments model MS-210W radiometer, and total ozone column data was obtained by a Total Ozone Mapping Spectrometer on board of the NASA Earth Probe satellite. Correlation coefficients varied from R = -0.86 at 70° and 55°, to R = -0.97 at 40°. Ozone variations explained 74 to 94% of the UV-B variability. A 1% reduction in ozone resulted in an increase of about 1% in UV-B for the solar zenith angles studied.

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How to Cite
Guarnieri, R. A., Guarnieri, F. L., Balbueno Contreira, D., Franco Padilha, L., Echer, E., Kirsch Pinheiro, D., … Schuch, N. J. (2004). Ozone and UV-B radiation anticorrelations at fixed solar zenith angles in southern Brazil. Geofisica Internacional, 43(1), 17–22. https://doi.org/10.22201/igeof.00167169p.2004.43.1.209
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