Ncep Ncar Reanalysis
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Análise das Simulações do PMIP3 Sobre o Nordeste Brasileiro Para o Período Pré-Industrial e Holoceno Médio
Resumo Este trabalho mostra uma analise das simulações obtidas no banco de dados do PMIP3 (Paleoclimate Modelling Intercomparison Project Phase IIII) para o período pré-industrial com os dados observados pelo CMAP (Climate Prediction Center Merged Analysis of Precipitation) e Climatic Reserch Unit (CRU) para a precipitação pluviométrica em mm/mês e o
Rev. bras. meteorol.. Publicado em: 30/05/2019
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2. Estudo numérico de jatos de baixos níveis no estado do Ceará. / Numerical study of low level jets in the state of Ceara.
O estado do Ceará, localizado no nordeste do Brasil, tem clima e tempo extremamente dependente da circulação atmosférica (sinótica e mesoescala) pelas consequências que esta produz sobre a precipitação, temperatura e fluxo de calor e umidade. No interior desse estado, ocorre um fenômeno bem conhecido dos moradores, principalmente daqueles que habita
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/02/2010
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3. A Concentração de sódio no testemunho de gelo da Ilha James Ross como indicador da variabilidade da extensão do gelo marinho
This dissertation investigates the relationship between the sodium concentration in an ice core (D98) from James Ross Island (Antarctica) and the area covered by sea ice in the Bellingshausen and Amundsen Seas during the 1979¿1991 period. The D98 total sodium content derives from samples analyzed by Joseph McConnell (McConnell et al., 2007). Sea ice coverag
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2010
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4. Relation between the Antarctic Sea ice concentration and low temperatures in South America / Relação entre a concentração de gelo marinho Antártico e a temperatura mínima na América do Sul
The Antarctic Sea Ice Concentration (ASIC) is thought to be an important element in the analysis of the world climate. However, few studies have investigated its relation to other climatic elements. Thus, the aim of this study was to verify the relation between the ASIC and low temperatures in South America through two approaches. The first, regional, invest
Publicado em: 2009
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5. Climate indices of temperature and precipitation over South America: present climate and validation of the RegCM3 model / Índices de extremos climáticos de temperatura e chuva na América do Sul: clima presente e validação do modelo RegCM3
The main goal of this study is to investigate if the RegCM3 model (Regional Climate Model version 3) is able to simulate the spatial patterns of some annual and seasonal climate indices of temperature and precipitation trend over South America for the present climate (1961-1990). The analysis is done for three different simulations where the model was runnin
Publicado em: 2008
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6. Algoritmo regional de monitoramento da taxa de fixação de carbono pelas florestas tropicais da América do Sul / Regional algorithm for monitoring the carbon assimilation by tropical forests of the South America
The most likely scenario for the next decades presents strong modifications in the global environment, including increase of the atmospheric concentration of CO2 and other trace gases, climate change and intensification of the impacts caused by the man s action. These changes may cause important modifications in the composition, structure and distribution of
Publicado em: 2008
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7. Comparison of precipitation and incident solar radiation products for South America: observed data and reanalysis / Comparação de produtos de precipitação e radiação solar incidente para a América do Sul: dados observados e reanálises
The goal of this study was to compare nine databases of precipitation and four databases of incident solar radiation of the South America, considering the meridional variation, and the variation across the main continental watersheds (Amazonas, Tocantins, São Francisco, Orinoco, Paraná/Prata, in addition to the main Patagônia basins) and across the main v
Publicado em: 2007
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8. Modeling and mapping of thermal environment to evaluate the performance of broiler chickens lodged in acclimatized housing / Modelagem e zoneamento do ambiente tÃrmico para avaliar o desempenho de frangos de corte criados em galpÃes climatizados
The objective of this work was to develop and validate a mathematical and computational model to predict thermal environment (air temperature, relative humidity, temperature-humidity index â THI and environmental index for broiler chickens productivity â EPIbc), main physiological responses (skin temperature â TS, rectal temperature â TR and respiratory
Publicado em: 2006
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9. Cavados em médios níveis no hemisfério sul: climatologia, energética e ciclogênese em superfície / Midtropospheric trough in southern hemisphere: climatology, energetic and surface cyclogenesis
Southern Hemisphere and its relationship with the Southern America surface cyclogenesis. An objective method of trough identification and tracking was developed, which was applied for 24 years of NCEP/NCAR reanalysis 500 hPa geopotencial height data. We found, in mean, 868 troughs per year, with positive trend. The winter season (summer) presented greater (s
Publicado em: 2005
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10. The impact of the ongoing deforestation on the hydrological cycle: a case study of the Cuiabá-Santarém highway / O impacto do desmatamento no ciclo hidrológico: um estudo de caso para a rodovia Cuiabá-Santarém
This study aim was to evaluate some impacts on the hydrological cycle, specially the precipitation pattern, due to the regional deforestation along the corridor of the Cuiaba-Santarem highway (BR-163), using a high resolution (16x16 km grid) atmospheric model, the Regional Atmospheric Modeling System (RAMS), in its Brazilian version, the Brazilian RAMS or BR
Publicado em: 2005
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11. Validation of heat fluxes over the tropical atlantic: CPTEC coupled ocean-atmosphere model and observations / Validação dos fluxos de calor sobre o atlântico tropical: modelo acoplado oceano-atmosfera do CPTEC e observações
The goal of this work is to infer the importance of surface heat fluxes, estimated by several methods, in the determination of the Sea Surface Temperature (SST) fields in the tropical Atlantic using a set of general circulation ocean model Modular Ocean Model 3 (MOM 3) simulations and a Centro de Previsão de Tempo e Estudos Climáticos (CPTEC) coupled ocean
Publicado em: 2005
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12. Quasi-stationary waves in the southern hemisphere: observations and climate simulations over South America / Ondas quase-estacionárias no hemisférico sul: observações e simulações climáticas sobre a América do Sul
Characteristics of the quasi-stationary waves in the Southern Hemisphere with emphasis on their behavior over South America are discussed. In the first part, an observational study is performed using the NCEP/NCAR reanalysis data. The nature of seasonal and inter anual variabilities is analyzed. A comparison between the of the quasi-stationary wave s amplitu
Publicado em: 2004