@InProceedings{CorreaCoroCebaBott:2004:CoStUV,
author = "Correa, Marcelo de Paula and Coronel, Genaro and Ceballos, Juan C.
and Bottino, Marcus J.",
affiliation = "{CPTEC-INPE-Cachoeira Paulista-12630-000-SP-Brasil}",
title = "Comparative study of UVB attenuation observerd during dry and wet
seasons in a South American region",
year = "2004",
organization = "International Radiation Symposium, (IRS).",
keywords = "ultraviolet index, clouds, satellite, radiative transfer.",
abstract = "This work shows a comparative study about UVB attenuation over a
South American region, during wet season (with low aerosol loads
and cloudy days) and dry season (with biomass burning aerosol
predominance in clear-sky days). The analysis was based on UVB
data collected in Asunci{\'o}n city (Paraguay) between 2000 and
2002, and theoretical clear-sky irradiances calculated by an UV
multiple-scattering radiative transfer code. For the wet season -
February/April - a clustering method applied to GOES-8 imagery
allows for identification of different types of clouds. On the
other hand, the presence of aerosols during the dry season -
August/September - was evaluated using TOMS aerosol index
estimates. The goals of this study are: a.) characteristics of UVB
attenuation in both seasons; and b.) preliminary assessment of
empirical patterns relating UVB fluxes and cloudiness and aerosol
presence in the region.",
conference-location = "Pusan, South Korea,",
conference-year = "23-28 aug.",
language = "en",
urlaccessdate = "28 abr. 2024"
}