Rainfall Forecast
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Avaliação da Habilidade do Modelo WRF em Representar a Precipitação na Amazônia Usando Diferentes Escalas
Resumo A precipitação no norte da Amazônia dos verões e outonos austral, do período de 1988 a 1999, foi simulada utilizando o modelo regional Weather Research and Forecasting (WRF), através de uma abordagem em escalas distintas, com domínios aninhados de 45 e 15 km. As condições iniciais e de contorno foram obtidas da Climate Forecast System Reanaly
Rev. bras. meteorol.. Publicado em: 05/08/2019
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2. Application of SAC-SMA and IPH II hydrological models in the Teles Pires River basin, Brazil
RESUMO A parametrização e a análise do desempenho de um modelo hidrológico permitem sua consolidação para avaliação de estratégias de gerenciamento de recursos hídricos e para previsão de eventos extremos. Nesse contexto, o objetivo do trabalho foi avaliar o desempenho dos modelos chuva-vazão Soil Moisture Accounting (SAC-SMA) e IPH II para pred
RBRH. Publicado em: 11/04/2019
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3. Predicción Climática Estacional de Precipitación Acumulada en Primavera y Verano en el Sur de Uruguay
Abstract We develop dynamical-statistical forecast models in order to predict seasonal rainfall in southern Uruguay during summer and spring. The statistical technique consists of linear regressions between dynamic variables and rainfall observations. The forecasts for September-October-November are initialized in August and the ones for December-January-Feb
Rev. bras. meteorol.. Publicado em: 2017-09
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4. 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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5. Statistical Analysis of Spatial and Temporal Variability of Maximum Precipitation Events on the Rio Grande do Sul
Abstract: A statistical analysis of precipitation at Rio Grande do Sul State was presented in this article. The aim of this work was to identify spatial and temporal patterns of maximum precipitation, which was achieved by fitting a theoretical variogram in maximum annual rainfalls and its times of occurrence. In the literature, it was found that this patter
J. Aerosp. Technol. Manag.. Publicado em: 2012-06
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6. Predictors of local malaria outbreaks: an approach to the development of an early warning system in Colombia
Risk factor surveillance is a complementary tool of morbidity and mortality surveillance that improves the likelihood that public health interventions are implemented in a timely fashion. The aim of this study was to identify population predictors of malaria outbreaks in endemic municipalities of Colombia with the goal of developing an early warning system f
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-08
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7. FOREST FIRES IN MOUNTAIN NATIONAL PARK OF ITABAIANA - SERGIPE. / INCÊNDIOS FLORESTAIS NO PARQUE NACIONAL SERRA DE ITABAIANA SERGIPE.
This research was developed with the objective to determine the forest fire danger index that is the most efficient to predict forest fire inside the National Park Serra de Itabaiana. It also simulates the characteristics of the fire inside each type of vegetation, in order to characterize the risk in each situation. To simulate the forest fires, was used th
Publicado em: 2010
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8. Impacto da assimilação de dados de precipitação no sistema RPSAS/CPTEC: um estudo de caso de complexo convectivo de mesoescala / Impact of precipitation assimilation in CPTEC s RPSAS system: a case study of mesoscale convective system
This work presents the results of a impact study of estimated precipitation data assimilation in RPSAS from CPTEC, during January 2003. In this study, the precipitation assimilation was performed during the generation of first guess by the regional Eta model using a methodology similar to nudging. From this first guess, the RPSAS system generates an analysis
Publicado em: 2010
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9. 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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10. Precipitation forecast aided by weather radar for early warning system of urban floods / Previsão de chuva com auxílio de radar de tempo visando a um sistema de alerta antecipado de cheias em áreas urbanas
To reduce human and material losses during floods it is feasible to concisely study the rainfall forecast as the main part of an early warning system. The use of weather radar information, when linked to physically-based forecast models, can contribute for monitoring and forecasting of intense rainfall episodes. Thus, the rainfall forecast, based on using of
Publicado em: 2009
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11. Previsão de longo prazo da umidade do solo na bacia do rio Uruguai
Soil moisture is a very important variable in the interaction soil-atmosphere, contributing in hydrological processes and in agriculture. Determining this variable is an essential data for planning farming activities, and also when choosing the most adequate type of culture depending on the climate of the region. Water storage in the soil is also important f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2009
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12. OUTFLOW FORECAST BASED ON ARTIFICIAL NEURAL NETORKS AND WAVELET TRANSFORM / PREVISÃO DE VAZÃO POR REDES NEURAIS ARTIFICIAIS E TRANSFORMADA WAVELET
The hydroelectricity system is responsible for 83.7% of the electric energy generated at Brazil. Therefore, the generation of electric power in Brazil depends basically on the natural flow rates distributed by twelve basins in the country. The quality of prediction of natural flow is of crucial importance for the Brazilian governmental agency, ONS (from the
Publicado em: 2008