Numerical Forecast
Mostrando 1-12 de 32 artigos, teses e dissertações.
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1. Verificação da previsão do tempo em São Paulo com o modelo operacional WRF / Review of weather in São Paulo with the WRF Operational Model.
Forecasts of daily maximum and minimum temperatures and rainfall performed by the operational numerical weather prediction WRF (Weather Research Forecasting) model in the São Paulo are evaluated. Initial and boundary conditions provided by the 00UTC Global Forecast System (GFS) Model and WRF run for 72 hours, with two nested grids (with horizontal grid spac
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/11/2012
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2. Avaliação do acoplamento explícito entre simulação de reservatório e sistema de produção / Evaluation of explicit coupling between reservoir simulator and production facilities system
Various methodologies to model the coupling of reservoirs and production systems have been applied in the oil industry in recent years due to the need to model properly the integrated solution of models that represent the flow of fluids through the reservoir to the surface. These methodologies are used to forecast production of multiple reservoirs, sharing p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/05/2012
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3. Análise numérico-experimental de lajes nervuradas sujeitas a cargas estáticas de serviço
Waffle slabs are, nowadays, a demand for structural designers, as a consequence of architectural design evolution and new building management concepts, in spite of its laborious numerical modeling. Therefore, it becomes necessary to know more about their structural behavior and to improve the theoretical models used for simulating these slabs. The objective
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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4. In-Situ combustion : insights on field project and numerical simulation at laboratory and field scale / Combustão In-Situ : considerações sobre projeto e simulações numéricas em escala de laboratório e de campo
Behavior forecast of reservoirs subjected to in-situ combustion is hard and empirical since besides geological complexities it is necessary to reproduce complex fluid models and several chemical reactions that are part of the process. The work flow for field project usually involves: 1) reservoir screening; 2) thermo-analytical experiments; 3) combustion tub
Publicado em: 2010
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5. Assimilação de dados com redes neurais artificiais em modelo de circulação geral da atmosfera / Data assimilation with artificial neural networks in atmospheric general circulation model
Weather forecasting systems require a model for the time evolution and an estimate of the current state of the system. The numerical weather prediction (NWP) incorporates the equations of atmospheric dynamics with physical process and it can predict the future state of the atmosphere. Data assimilation provides such an initial estimate of the atmosphere wher
Publicado em: 2010
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6. Rainfall short-term forecast in the surveillance area of São Paulo weather radar. / Previsão de chuva a curtíssimo prazo na área de abrangência do radar meteorológico de São Paulo
The evaluation of the rainfall short-term forecast up to 3 hours in advance within the surveillance area of São Paulo weather radar (RSP) for different types of precipitating systems, mainly the are associated to floods and landslides in Metropolitan Area of São Paulo (RMSP), was carried out with an 2D wind advective scheme and rainfall rates estimated wit
Publicado em: 2009
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7. The impact of the use of high spatial resolution sea surface temperature data in a numerical weather prediction model / Impacto da utilização de dados de temperatura da superfície do mar de alta resolução espacial em um modelo de previsão numérica do tempo
Sea surface temperature (SST) is an important indicator of Earth´s climate. An accurate and global measurement of this parameter is of fundamental importance in applications related to climate studies, ocean-atmosphere interactions, marine ecosystem, etc. Special attention may be given to meteorological forecasts, where SST stands as an important boundary c
Publicado em: 2009
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8. Assimilação de dados das estações meteorológicas automática da FUNCEME. / Assimilation of data from automatic weather stations FUNCEME.
An observed data assimilation (ODA) technique is evaluated regarding its effects on the performance of a mesoscale atmospheric model (Regional Atmospheric Modeling System, RAMS 6.0) in a weather forecast simulation for the five first days of January 2005, which represents a transitional period in the wind regime over northern Northeast Brazil (between the dr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/08/2008
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9. Análise e modelagem dos Distúrbios Ondulatórios de Leste que atuam na costa leste do Nordeste do Brasil
- This study analyzed the Easterly Waves Disturbances (EWDs) that reached the Eastern Coast of Northeast Brazil (NEB) during the period of April through July of 2005 and 2006. As rainfall in this region has not been forecasted properly from the numerical models, it was carried out 40 experiments with Eta model, using different horizontal resolutions (10 and
Publicado em: 2008
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10. Variabilidade atmosférica associada a casos extremos de precipitação na Região Sudeste do Brasil / Atmospheric variability associated to estreme precipitation events over southeast region of Brazil
The most severe climate impacts on the society occur due to climate variability and extreme precipitation events. Therefore, their study on various space and time scales are important to determine, in details, the related aspects and thus to provide information to analyze their representations in numerical forecast models. The goal of this work is to study v
Publicado em: 2008
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11. Estudo das características das perturbações EOF extratropicais e seu impacto na previsão de tempo de médio prazo por conjunto
- The characteristics of the extratropical EOF perturbations are studied and their impact on the medium range ensemble weather prediction is evaluated, using simulations with the Center for Weather Prediction and Climate Studies Ensemble Weather Prediction System (CPTEC-EPS). The EOF method, originally applied over tropical regions and for horizontal wind an
Publicado em: 2008
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12. IMPLEMENTATION AND EVALUATION OF METODOLOGIAS TO FORECAST FOR ÃNDICES REGIONAL RAIN INDEX IN THE RAINY SEASON IN REGION SEMI-ÃRIDA OF NORDESTE OF BRAZIL / AplicaÃÃo e AvaliaÃÃo de Metodologias para PrevisÃo de Ãndices Regionais de Chuva no PerÃodo da Quadra na RegiÃo Semi-Ãrida do Nordeste.
This study presents the application and evaluation of two distinct forecast systems Seasonal Regional Rainfall Indices on the Semi-Arid Northeast of Brazil and Basins of the Cearà State Regions. In the first case a set of numerical simulations (1971-2000) obtained from system forecast based on the theory of dynamic downscaling is used as data to input in th
Publicado em: 2007