Low-Level Jet observational study for the Brazilian Nuclear Reactor region
Autor(a) principal: | |
---|---|
Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo de conferência |
Título da fonte: | Repositório Institucional do IPEN |
Texto Completo: | http://repositorio.ipen.br/handle/123456789/29468 |
Resumo: | 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. |
id |
IPEN_0552645a06a2e2f1373ddf4fafc468ef |
---|---|
oai_identifier_str |
oai:repositorio.ipen.br:123456789/29468 |
network_acronym_str |
IPEN |
network_name_str |
Repositório Institucional do IPEN |
repository_id_str |
4510 |
spelling |
COMERON, ADOLFOKASSIANOV, EVGUENI I.SCHAFER, KLAUSPICARD, RICHARD H.WEBER, KONRADINBEU, CASSIA M.L.ESPINDOLA, FELIPE D.C.LANDULFO, EDUARDOREMOTE SENSING OF CLOUDS AND THE ATMOSPHERE, 23th2019-02-04T10:49:20Z2019-02-04T10:49:20ZSeptember 10-13, 2018http://repositorio.ipen.br/handle/123456789/2946810.1117/12.2325476aguardandoA 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.Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2019-02-04T10:49:20Z No. of bitstreams: 1 25256.pdf: 1213397 bytes, checksum: 04afad608bda1d62a39ec3de27143132 (MD5)Made available in DSpace on 2019-02-04T10:49:20Z (GMT). No. of bitstreams: 1 25256.pdf: 1213397 bytes, checksum: 04afad608bda1d62a39ec3de27143132 (MD5)1078616-1 - 1078616-18Society of Photo-optical Instrumentation EngineersSPIE Proceedings Series, 10786atmospheresplanetary atmosphereswind loadsjetsfluid flowboundary layersbrazildispersionsnuclear facilitiesrmb reactorisotope separation plantsatmospheric precipitationsmeteorologyLow-Level Jet observational study for the Brazilian Nuclear Reactor regioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectSPIEIBellingham, WA, USABerlin, Germanyinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN252562018BEU, CASSIA M.L.LANDULFO, EDUARDO19-02Proceedings14140503BEU, CASSIA M.L.:14140:920:SLANDULFO, EDUARDO:503:920:NORIGINAL25256.pdf25256.pdfapplication/pdf1213397http://repositorio.ipen.br/bitstream/123456789/29468/1/25256.pdf04afad608bda1d62a39ec3de27143132MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/29468/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/294682020-01-30 17:10:36.756oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102020-01-30T17:10:36Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false |
dc.title.pt_BR.fl_str_mv |
Low-Level Jet observational study for the Brazilian Nuclear Reactor region |
title |
Low-Level Jet observational study for the Brazilian Nuclear Reactor region |
spellingShingle |
Low-Level Jet observational study for the Brazilian Nuclear Reactor region BEU, CASSIA M.L. atmospheres planetary atmospheres wind loads jets fluid flow boundary layers brazil dispersions nuclear facilities rmb reactor isotope separation plants atmospheric precipitations meteorology |
title_short |
Low-Level Jet observational study for the Brazilian Nuclear Reactor region |
title_full |
Low-Level Jet observational study for the Brazilian Nuclear Reactor region |
title_fullStr |
Low-Level Jet observational study for the Brazilian Nuclear Reactor region |
title_full_unstemmed |
Low-Level Jet observational study for the Brazilian Nuclear Reactor region |
title_sort |
Low-Level Jet observational study for the Brazilian Nuclear Reactor region |
author |
BEU, CASSIA M.L. |
author_facet |
BEU, CASSIA M.L. ESPINDOLA, FELIPE D.C. LANDULFO, EDUARDO REMOTE SENSING OF CLOUDS AND THE ATMOSPHERE, 23th |
author_role |
author |
author2 |
ESPINDOLA, FELIPE D.C. LANDULFO, EDUARDO REMOTE SENSING OF CLOUDS AND THE ATMOSPHERE, 23th |
author2_role |
author author author |
dc.contributor.editor.none.fl_str_mv |
COMERON, ADOLFO KASSIANOV, EVGUENI I. SCHAFER, KLAUS PICARD, RICHARD H. WEBER, KONRADIN |
dc.contributor.author.fl_str_mv |
BEU, CASSIA M.L. ESPINDOLA, FELIPE D.C. LANDULFO, EDUARDO REMOTE SENSING OF CLOUDS AND THE ATMOSPHERE, 23th |
dc.subject.por.fl_str_mv |
atmospheres planetary atmospheres wind loads jets fluid flow boundary layers brazil dispersions nuclear facilities rmb reactor isotope separation plants atmospheric precipitations meteorology |
topic |
atmospheres planetary atmospheres wind loads jets fluid flow boundary layers brazil dispersions nuclear facilities rmb reactor isotope separation plants atmospheric precipitations meteorology |
description |
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. |
publishDate |
2019 |
dc.date.evento.pt_BR.fl_str_mv |
September 10-13, 2018 |
dc.date.accessioned.fl_str_mv |
2019-02-04T10:49:20Z |
dc.date.available.fl_str_mv |
2019-02-04T10:49:20Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ipen.br/handle/123456789/29468 |
dc.identifier.doi.pt_BR.fl_str_mv |
10.1117/12.2325476 |
dc.identifier.orcid.pt_BR.fl_str_mv |
aguardando |
url |
http://repositorio.ipen.br/handle/123456789/29468 |
identifier_str_mv |
10.1117/12.2325476 aguardando |
dc.relation.ispartofseries.pt_BR.fl_str_mv |
SPIE Proceedings Series, 10786 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1078616-1 - 1078616-18 |
dc.coverage.pt_BR.fl_str_mv |
I |
dc.publisher.none.fl_str_mv |
Society of Photo-optical Instrumentation Engineers |
publisher.none.fl_str_mv |
Society of Photo-optical Instrumentation Engineers |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional do IPEN instname:Instituto de Pesquisas Energéticas e Nucleares (IPEN) instacron:IPEN |
instname_str |
Instituto de Pesquisas Energéticas e Nucleares (IPEN) |
instacron_str |
IPEN |
institution |
IPEN |
reponame_str |
Repositório Institucional do IPEN |
collection |
Repositório Institucional do IPEN |
bitstream.url.fl_str_mv |
http://repositorio.ipen.br/bitstream/123456789/29468/1/25256.pdf http://repositorio.ipen.br/bitstream/123456789/29468/2/license.txt |
bitstream.checksum.fl_str_mv |
04afad608bda1d62a39ec3de27143132 8a4605be74aa9ea9d79846c1fba20a33 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN) |
repository.mail.fl_str_mv |
bibl@ipen.br |
_version_ |
1767254246264143872 |