Eventos de drenagem de ar na camada limite muito estável
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Manancial - Repositório Digital da UFSM |
Texto Completo: | http://repositorio.ufsm.br/handle/1/28572 |
Resumo: | The very stable boundary layer occurs on nights with light wind and clear skies, which cause strong radiative cooling on the surface, changing the structure and some characteristics of the normal stable boundary layer. Drainage winds are a characteristic circulation of the very stable boundary layer in environments with slight inclination, they are relatively difficult to be studied due to their very small scale, which makes the flows difficult to be measured. Therefore, measured data were obtained from the 30-meter-high micrometeorological tower, located at the Federal University of Santa Maria (UFSM), in order to identify and investigate drainage events that occurred in the year 2021 in the region of Santa Maria in Rio Grande. do Sul, in order to understand its behavior and impacts on the Nocturnal Boundary Layer flows. High frequency data from the micrometeorological tower located in the city of Santa Maria-RS were used. 78 cases of drainage winds events were identified, before the drainage events it was found that there is a minimum of turbulent kinetic energy, during the drainage events the wind speed reaches its maximum in the first 5 meters of height, the wind direction predominant in these events is between 100 and 150 ◦ . As a result of mixing caused by the draining winds, there was significant vertical mixing in the first 30 meters, heating the lower levels up to 10 meters and cooling the levels above. |
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2023-04-05T19:33:52Z2023-04-05T19:33:52Z2022-12-23http://repositorio.ufsm.br/handle/1/28572The very stable boundary layer occurs on nights with light wind and clear skies, which cause strong radiative cooling on the surface, changing the structure and some characteristics of the normal stable boundary layer. Drainage winds are a characteristic circulation of the very stable boundary layer in environments with slight inclination, they are relatively difficult to be studied due to their very small scale, which makes the flows difficult to be measured. Therefore, measured data were obtained from the 30-meter-high micrometeorological tower, located at the Federal University of Santa Maria (UFSM), in order to identify and investigate drainage events that occurred in the year 2021 in the region of Santa Maria in Rio Grande. do Sul, in order to understand its behavior and impacts on the Nocturnal Boundary Layer flows. High frequency data from the micrometeorological tower located in the city of Santa Maria-RS were used. 78 cases of drainage winds events were identified, before the drainage events it was found that there is a minimum of turbulent kinetic energy, during the drainage events the wind speed reaches its maximum in the first 5 meters of height, the wind direction predominant in these events is between 100 and 150 ◦ . As a result of mixing caused by the draining winds, there was significant vertical mixing in the first 30 meters, heating the lower levels up to 10 meters and cooling the levels above.A camada limite muito estável (CLME) ocorre em noites de vento fraco e céu limpo, que provocam forte resfriamento radiativo na superfície, alterando a estrutura e algumas características da camada limite estável normal. Os ventos de drenagem é uma circulação característica da CLME em ambientes com leve inclinação, são processos relativamente difíceis de serem estudados devido a sua escala ser muito pequena, isso torna os fluxos difíceis de serem medidos. Sendo assim, foram obtidos dados medidos na torre micrometeorológica de 30 metros de altura, localizada na Universidade Federal de Santa Maria (UFSM), com objetivo de identificar e investigar eventos de drenagem que ocorreram no ano de 2021 na região de Santa Maria no Rio Grande do Sul, afim de compreender seu comportamento e impactos nos fluxos da Camada Limite Noturna. Foram utilizados dados de alta frequência da torre micrometeorológica localizada na cidade de Santa Maria-RS. Foram identificados 78 casos de eventos de drenagem, antes dos eventos de drenagem foi encontrado que há um minimo de energia cinética turbulenta, durante os eventos de drenagem a velocidade do vento atinge o seu máximo nos primeiros 5 metros de altura, a direção do vento predominante nesse eventos está entre 100 e 150 ◦ . Como resultado da mistura causada pelos ventos de drenagem, houve mistura vertical significante nos primeiros 30 metros, aquecendo os níveis mais baixos até 10 metros e resfriando os níveis acima.porUniversidade Federal de Santa MariaCentro de Ciências Naturais e ExatasPrograma de Pós-Graduação em MeteorologiaUFSMBrasilMeteorologiaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessCamada limite muito estávelFluxo turbulentoAnticiclonesVentos de drenagemVery stable boundary layerTurbulent flowAnticyclonesDrainage windsCNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIAEventos de drenagem de ar na camada limite muito estávelDrainage wind events on the very stable boundary layerinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisAcevedo, Otavio Costahttp://lattes.cnpq.br/8696858608013659Costa, Felipe DenardinOliveira, Pablo Eli Soares dehttp://lattes.cnpq.br/8484597553858010Maia, Pamella Olimpia Andrade1007003000046006006006006004239c892-611b-4128-ac89-6b924ba480e531e88832-3c92-40fb-b9f1-d9b471b5f133b4b17c0b-d2ac-4c25-887d-fffdccb831e66dab17fc-5765-4825-b522-0ace97856773reponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALDIS_PPGMETEOROLOGIA_2022_MAIA_PAMELLA.pdfDIS_PPGMETEOROLOGIA_2022_MAIA_PAMELLA.pdfDissertação de Mestradoapplication/pdf28597356http://repositorio.ufsm.br/bitstream/1/28572/1/DIS_PPGMETEOROLOGIA_2022_MAIA_PAMELLA.pdf641f969e82da377fdb4b0b8005f98c4eMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8805http://repositorio.ufsm.br/bitstream/1/28572/2/license_rdf4460e5956bc1d1639be9ae6146a50347MD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81956http://repositorio.ufsm.br/bitstream/1/28572/3/license.txt2f0571ecee68693bd5cd3f17c1e075dfMD531/285722023-04-05 16:33:52.627oai:repositorio.ufsm.br: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ório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestopendoar:39132023-04-05T19:33:52Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Eventos de drenagem de ar na camada limite muito estável |
dc.title.alternative.eng.fl_str_mv |
Drainage wind events on the very stable boundary layer |
title |
Eventos de drenagem de ar na camada limite muito estável |
spellingShingle |
Eventos de drenagem de ar na camada limite muito estável Maia, Pamella Olimpia Andrade Camada limite muito estável Fluxo turbulento Anticiclones Ventos de drenagem Very stable boundary layer Turbulent flow Anticyclones Drainage winds CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIA |
title_short |
Eventos de drenagem de ar na camada limite muito estável |
title_full |
Eventos de drenagem de ar na camada limite muito estável |
title_fullStr |
Eventos de drenagem de ar na camada limite muito estável |
title_full_unstemmed |
Eventos de drenagem de ar na camada limite muito estável |
title_sort |
Eventos de drenagem de ar na camada limite muito estável |
author |
Maia, Pamella Olimpia Andrade |
author_facet |
Maia, Pamella Olimpia Andrade |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Acevedo, Otavio Costa |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/8696858608013659 |
dc.contributor.referee1.fl_str_mv |
Costa, Felipe Denardin |
dc.contributor.referee2.fl_str_mv |
Oliveira, Pablo Eli Soares de |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/8484597553858010 |
dc.contributor.author.fl_str_mv |
Maia, Pamella Olimpia Andrade |
contributor_str_mv |
Acevedo, Otavio Costa Costa, Felipe Denardin Oliveira, Pablo Eli Soares de |
dc.subject.por.fl_str_mv |
Camada limite muito estável Fluxo turbulento Anticiclones Ventos de drenagem |
topic |
Camada limite muito estável Fluxo turbulento Anticiclones Ventos de drenagem Very stable boundary layer Turbulent flow Anticyclones Drainage winds CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIA |
dc.subject.eng.fl_str_mv |
Very stable boundary layer Turbulent flow Anticyclones Drainage winds |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::GEOCIENCIAS::METEOROLOGIA |
description |
The very stable boundary layer occurs on nights with light wind and clear skies, which cause strong radiative cooling on the surface, changing the structure and some characteristics of the normal stable boundary layer. Drainage winds are a characteristic circulation of the very stable boundary layer in environments with slight inclination, they are relatively difficult to be studied due to their very small scale, which makes the flows difficult to be measured. Therefore, measured data were obtained from the 30-meter-high micrometeorological tower, located at the Federal University of Santa Maria (UFSM), in order to identify and investigate drainage events that occurred in the year 2021 in the region of Santa Maria in Rio Grande. do Sul, in order to understand its behavior and impacts on the Nocturnal Boundary Layer flows. High frequency data from the micrometeorological tower located in the city of Santa Maria-RS were used. 78 cases of drainage winds events were identified, before the drainage events it was found that there is a minimum of turbulent kinetic energy, during the drainage events the wind speed reaches its maximum in the first 5 meters of height, the wind direction predominant in these events is between 100 and 150 ◦ . As a result of mixing caused by the draining winds, there was significant vertical mixing in the first 30 meters, heating the lower levels up to 10 meters and cooling the levels above. |
publishDate |
2022 |
dc.date.issued.fl_str_mv |
2022-12-23 |
dc.date.accessioned.fl_str_mv |
2023-04-05T19:33:52Z |
dc.date.available.fl_str_mv |
2023-04-05T19:33:52Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/28572 |
url |
http://repositorio.ufsm.br/handle/1/28572 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
100700300004 |
dc.relation.confidence.fl_str_mv |
600 600 600 600 600 |
dc.relation.authority.fl_str_mv |
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dc.rights.driver.fl_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Meteorologia |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Meteorologia |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria Centro de Ciências Naturais e Exatas |
dc.source.none.fl_str_mv |
reponame:Manancial - Repositório Digital da UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
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