| 1. Identificação | ||||
| Tipo de Referência | Pôster em Evento (Conference Proceedings) | |||
| Site | mtc-m21b.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34P/3LQKSJS | |||
| Repositório | sid.inpe.br/mtc-m21b/2016/06.03.18.58 | |||
| Última Atualização | 2016:06.03.18.58.09 (UTC) simone | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2016/06.03.18.58.09 | |||
| Última Atualização dos Metadados | 2021:01.02.03.56.52 (UTC) administrator | |||
| Chave Secundária | INPE--PRE/ | |||
| Chave de Citação | VendrascoHerd:2016:EvDiIn | |||
| Título | Evaluation of the direct and indirect assimilation of radar reflectivity using the WRFDA 3D-Var  | |||
| Ano | 2016 | |||
| Data de Acesso | 13 maio 2024 | |||
| Tipo Secundário | PRE CI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 3949 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Vendrasco, Eder Paulo 2 Herdies, Dirceu Luis | |||
| Identificador de Curriculo | 1 2 8JMKD3MGP5W/3C9JGTU | |||
| Grupo | 1 DMD-CPT-INPE-MCTI-GOV-BR 2 DMD-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 eder.vendrasco@cptec.inpe.br 2 dirceu.herdies@inpe.br | |||
| Nome do Evento | AMS Annual Meeting, 96 | |||
| Localização do Evento | New Orleans, Louisiana | |||
| Data | 10-14 jan. | |||
| Título do Livro | Posters | |||
| Histórico (UTC) | 2016-06-03 18:58:17 :: simone -> administrator :: 2016 2021-01-02 03:56:52 :: administrator -> simone :: 2016 | |||
| 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 | |||
| Resumo | It is known that developments have being made in the concern of radar data assimilation and many studies point out some improvements on the quantitative precipitation forecast. However, it is not clear whether the most common way of assimilating reflectivity, i.e., directly as a control variable, is the best choice. We have made experiments using the Weather Research Forecasting model three-dimensional data assimilation system (WRFDA 3D-Var) over Brazil and we have found that the improvement achieved when using the direct assimilation is short-lived. Besides that, there are some works which point out this problem and suggest that the best way of assimilating reflectivity is indirectly through the assimilation of rainwater mixing ratio obtained from reflectivity. It would avoid problems related to the linearization of the reflectivity-rainwater mixing ratio relationship (Z-qr) that is needed in the incremental formulation used in WRFDA 3D-Var. Therefore, the aim of this work was to perform experiments over a specific region in Brazil to evaluate whether the indirect assimilation of reflectivity outperform the results obtained using the direct assimilation. It was chosen six cases of precipitation and 3 experiments for each case were performed. The three experiments were: i) a control without any radar data assimilation; ii) using direct assimilation and; iii) indirect assimilation of reflectivity. Radial velocity was assimilated in both cases. The Fractional Skill Score (FSS) and the Root Mean Square Error (RMSE) were used to compare quantitatively the performance of each experiment against observations. The results have shown that the indirect assimilation can produce better QPF than the one where reflectivity is assimilated directly and the improvement tends to last longer. | |||
| Área | MET | |||
| 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/8JMKD3MGP3W34P/3LQKSJS | |||
| URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W34P/3LQKSJS | |||
| Arquivo Alvo | vendrasco.pdf | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Permissão de Leitura | allow from all | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Repositório Espelho | urlib.net/www/2011/03.29.20.55 | |||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/43SKC35 | |||
| Lista de Itens Citando | ||||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notas | ||||
| Campos Vazios | archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label language lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url volume | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||