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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2004
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| Online Access: | https://www.redalyc.org/articulo.oa?id=56843103 |
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Table of Contents:
- Ozone and UV-B radiation anticorrelations at fixed solar zenith angles in southern Brazil Ezequiel Echer Ricardo André Guarnieri Fernando Luís Guarnieri Danieli Balbueno Contreira Liana Franco Padilha Damaris Kirsch Pinheiro Augusta Maria Passaglia Schuch Kazuo Makita Nelson Jorge Schuch Ciencias de la Tierra Ozone clear sky cloud coverage anticorrelations ultraviolet radiation Anticorrelation behavior between total ozone column and UV-B radiation was observed for clear sky conditions during theyear 2000 at the Southern Space Observatory OES/CRSPE/INPE MCT (29.44°S, 53.82°W) located in the southern part ofBrazil. To eliminate geometrical dependence of the solar angular position in relation to the instrument, UV-B radiation wasmeasured at fixed solar zenith angles. The UV-B radiation (280-315 nm) was measured by an Eko Instruments model MS-210Wradiometer, and total ozone column data was obtained by a Total Ozone Mapping Spectrometer on board of the NASA Earth Probesatellite. 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. 2004 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56843103 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.1 Vol.43