1. Identificação | |
Tipo de Referência | Resumo em Evento (Conference Proceedings) |
Site | mtc-m16d.sid.inpe.br |
Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identificador | 8JMKD3MGP7W/3EBRTTB |
Repositório | sid.inpe.br/mtc-m19/2013/06.24.18.06 |
Última Atualização | 2013:06.25.19.14.05 (UTC) administrator |
Repositório de Metadados | sid.inpe.br/mtc-m19/2013/06.24.18.06.12 |
Última Atualização dos Metadados | 2021:01.03.02.14.14 (UTC) administrator |
Rótulo | self-archiving-INPE-MCTI-GOV-BR |
Chave de Citação | CostaMach:2013:PrFiCo |
Título | Preparation of a filter to correct drop size distributions of Parsivel disdrometer based on the particle speed limitation |
Ano | 2013 |
Data de Acesso | 29 abr. 2024 |
Tipo Secundário | PRE CI |
Número de Arquivos | 2 |
Tamanho | 990 KiB |
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2. Contextualização | |
Autor | 1 Costa, Izabelly Carvalho da 2 Machado, Luiz Augusto Toledo |
Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JHMS |
Grupo | 1 MET-MET-SPG-INPE-MCTI-GOV-BR 2 DSA-CPT-INPE-MCTI-GOV-BR |
Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Instituto Nacional de Pesquisas Espaciais (INPE) |
Endereço de e-Mail do Autor | 1 izabelly.costa@cemaden.gov.br 2 luiz.machado@cptec.inpe.br |
Endereço de e-Mail | valdirene.ribeiro@cptec.inpe.br |
Nome do Evento | CHUVA International Workshop, 1. |
Localização do Evento | São Paulo, Brazil |
Data | May, 8-10 |
Título do Livro | Abstracts |
Histórico (UTC) | 2013-06-24 18:06:12 :: valdirene.ribeiro@cptec.inpe.br -> administrator :: 2013-10-15 03:03:31 :: administrator -> marcelo.pazos@sid.inpe.br :: 2013 2014-01-14 17:52:40 :: marcelo.pazos@sid.inpe.br -> administrator :: 2013 2021-01-03 02:14:14 :: administrator -> marcelo.pazos@inpe.br :: 2013 |
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3. Conteúdo e estrutura | |
É a matriz ou uma cópia? | é a matriz |
Estágio do Conteúdo | concluido |
Transferível | 1 |
Tipo do Conteúdo | External Contribution |
Tipo de Versão | publisher |
Palavras-Chave | droplet size Parsivel disdrometer Joss-Waldvogel Disdrometer |
Resumo | The disdrometer is an instrument which measures the droplet size distribution, this measurement can be used to estimate the rainfall intensity (mm/h), radar reflectivity (mm 6.m-3) close to ground and concentration of drop lets (m- 3.mm-1) for each diameter class. The most common are the impact disdrometer (Joss-Waldvogel) and optical disdrometer (Parsivel and Thies). The optical disdrometer has a light beam and when the rainfall particle passes through this beam, the received signal decreases. The extent of this reduction is related to the particle size and duration of reduction is related to the fall velocity. The Joss-Waldvogel Disdrometer measuring the raindrops size distribution through an electromechanical spectrometer, where the drops levied on an area of 50 cm2. The comparison between three different disdrometers Krajewski et al. (2006) was performed during the DEVEX experiment (Disdrometer EValuation EXperiment). To performance evaluation of each disdrometer were done comparing rain rate, drop size distribution and particle velocity data. The comparison results indicate that in general all the instruments showed satisfactory performance. However, small differences were observed between the disdrometer data, especially during intense precipitation events, with a significant overestimation of Parsivel in precipitation rate. In his study the same comparison was performed and also an overestimation has been observed for the field experiments of the CHUVA Project. This difference may be associated to the fact that large rain particles when precipitate, collide with the instrument and is subdivided into several smaller droplets, causing high levels of concentration in small diameters classes. When this occurs the droplets pass through the beam at a speed greater than that expected for these small broken drop lets. In this study the Joss-Waldvogel disdrometer was used as reference and a filter was developed with the purpose of eliminating inconsistent data measured by Parsivel in order to bring similar concentration of rain drops values from different types of disdrometers. Results are presented for two disdrometers, a Joss-Waldvogel and a Parsivel, installed in IEAv site during the CHUVA Project, at Vale do Paraíba-SP, which occurred from 30 October 2011 to 18 March 2012. Based on these data we calculated the average speeds and standard deviations for each class of diameter. A filter was developed using the expected fall speed for each droplet size and only droplets sizes. In the domain of the expected terminal velocity and the standard deviation for each class of diameter were considered to compute the concentration. We have tested several intervals as function of the standard deviation. After application of the test factor to the standard deviation value of 1.6 was chosen, since with this factor, the mean concentration curve Parsivel followed well the behavior of the average concentration of the Joss- Waldvogel, for most classes. |
Área | MET |
Arranjo 1 | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > MET > Preparation of a... |
Arranjo 2 | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDSA > Preparation of a... |
Conteúdo da Pasta doc | acessar |
Conteúdo da Pasta source | não têm arquivos |
Conteúdo da Pasta agreement | |
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4. Condições de acesso e uso | |
URL dos dados | http://urlib.net/ibi/8JMKD3MGP7W/3EBRTTB |
URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP7W/3EBRTTB |
Arquivo Alvo | abstract-Izabelly_Costa.pdf |
Grupo de Usuários | administrator marcelo.pazos@inpe.br valdirene.ribeiro@cptec.inpe.br |
Grupo de Leitores | administrator marcelo.pazos@inpe.br |
Visibilidade | shown |
Permissão de Leitura | allow from all |
Permissão de Atualização | não transferida |
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5. Fontes relacionadas | |
Vinculação | Trabalho Vinculado à Tese/Dissertação |
Repositório Espelho | iconet.com.br/banon/2006/11.26.21.31 |
Unidades Imediatamente Superiores | 8JMKD3MGPCW/3F35TRS 8JMKD3MGPCW/43SRC6S |
Lista de Itens Citando | sid.inpe.br/bibdigital/2021/01.03.02.10 1 |
Acervo Hospedeiro | sid.inpe.br/mtc-m19@80/2009/08.21.17.02 |
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6. Notas | |
Campos Vazios | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi edition editor format isbn issn language lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress rightsholder schedulinginformation secondarydate secondarykey secondarymark serieseditor session shorttitle sponsor subject tertiarytype type url volume |
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7. Controle da descrição | |
e-Mail (login) | marcelo.pazos@inpe.br |
atualizar | |
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