Low-Level Jet observational study for the Brazilian Nuclear Reactor region
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2018
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REMOTE SENSING OF CLOUDS AND THE ATMOSPHERE, 23th
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A doppler wind lidar was employed to investigate the features of the Low-Level Jet (LLJ) at Ipero, Sao Paulo State, Brazil.
The Ipero Municipality already host a nuclear facility for uranium enrichment and a new plant, a nuclear reactor, is planned
to be built there. The nuclear activities require a good understanding of atmospheric dispersion, as for normal operation
conditions as for accidental emissions. The LLJ is a natural phenomenon that may occur within the Planetary Boundary
Layer and plays an important role for the atmospheric dispersion. Knowing the LLJ characteristics is essential to evaluate
the performances of the weather forecast models that are used as input for the atmospheric dispersion models. The field
campaign results showed that the LLJs occur with high frequency at Ipero and that the Stable Boundary Layer (SBL) is
shallow, which in turn is unfavored for pollutant dilution because all surface emissions remain confined within the SBL.
The 2 weather forecast models evaluated didn´t reproduce the LLJ, despite their high horizontal resolution. The numerical
models also underestimated the wind speed. Both the LLJ and the wind speed are key parameters for dispersion
simulations. As the weather forecast models diverge of the observational data, they must be better parameterized for
provide reliable simulations before being adopted as input for any atmospheric dispersion models. The field campaign
(planned to extend for 1 year) data are essential for the parameterization of the numerical models.
Como referenciar
BEU, CASSIA M.L.; ESPINDOLA, FELIPE D.C.; LANDULFO, EDUARDO. Low-Level Jet observational study for the Brazilian Nuclear Reactor region. In: COMERON, ADOLFO (ed.); KASSIANOV, EVGUENI I. (ed.); SCHAFER, KLAUS (ed.); PICARD, RICHARD H. (ed.); WEBER, KONRADIN (ed.). In: REMOTE SENSING OF CLOUDS AND THE ATMOSPHERE, 23th, September 10-13, 2018, Berlin, Germany. Proceedings... Bellingham, WA, USA: Society of Photo-optical Instrumentation Engineers, 2018. p. 1078616-1 - 1078616-18. (SPIE Proceedings Series, 10786). DOI: 10.1117/12.2325476. Disponível em: http://repositorio.ipen.br/handle/123456789/29468. Acesso em: 24 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.