Precipitation Variability Pattern
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. 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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2. Contribuição dos Distúrbios Ondulatórios de Leste para a chuva no Leste do Nordeste do Brasil: evolução sinótica média e simulações numéricas / Easterly Waves contribution for the eastern Northeast Brazil precipitation: mean synoptic evolution and numerical simulations
This study purpose was to verify the contribution of Easterly Wave Disturbances (EWDs) in the observed precipitation over the eastern part of Northeast Brazil (ENEB) during rainy season (AMJJ) and evaluate seasonal rainfall forecasts from RegCM3 (Regional Climate Model version 3). For the EWDs subjective identification it was used infrared satellite images a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/06/2011
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3. VARIAÇÕES CLIMÁTICAS NA PRECIPITAÇÃO DO RIO GRANDE DO SUL NO CLIMA PRESENTE E FUTURO / CLIMATE CHANGE IN PRECIPITATION IN SOUTHERN BRAZIL IN PRESENT AND FUTURE CLIMATE
Este trabalho apresenta a análise de tendências de precipitação para a região Sul do Brasil, para três conjuntos de dados com uma comparação entre dados de precipitação e dados do Modelo regional RegCM3 e uma análise de tendência para o clima futuro. O trabalho também apresenta os modos de variabilidade de precipitação que atuam na região Sul
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/03/2011
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4. Características da precipitação pluviométrica do nordeste brasileiro e seus padrões de acoplamento com as TSM do Pacífico Equatorial e Atlântico Sul. / Rainfall characteristics in northeastern brazil and their patterns coupling with sst equatorial Pacific and South Atlantic.
The eastern coast of the Northeast Brazil (NEB) is a region where transient weather systems interact with local systems, modulating their frequency and intensity. Understanding the mechanisms of such interactions may be instrumental in explaining the observed precipitation patterns in this region. The objective of this work is quite within this scope and tak
Publicado em: 2010
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5. Albedo em cerrado sensu stricto como resposta à variação climática e biológica: conexões com índice de vegetação, estoques de carbono e fluxos de CO2 / Albedo in cerrado sensu stricto as response to climatic and bilogical variation: connections with vegetation index, carbon stocks and fluxes of CO2
In this work we analyze the climatic variability influence over a woodland savannah ecosystem at Gleba Pe de Gigante, Santa Rita do Passa Quatro, SP, during the 2001-2007 period. The data collected for this analysis are from a micrometeorological tower located at Vassununga State Park, which was installed under the thematic project called Biosphere- Atmosphe
Publicado em: 2009
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6. Sugarcane crop efficiency in the State of São Paulo between growing seasons of 1990/1991 and 2005/2006. / Eficiência da produção agrícola de cana-de-açúcar no Estado de São Paulo entre as safras 1990/1991 e 2005/2006
The sugarcane is an important resource for food and energy production with scale to help the economy of fossil fuels and the development of new guidelines for socio-economic development in sustainable basis. The State of São Paulo is a region of great potential to meet the sugarcane demand in terms of sugar, ethanol and energy, since it has a long tradition
Publicado em: 2009
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7. 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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8. Dry spells occurrence in the northwest portion of Rio Grande do Sul state between the years 1978 and 2005 and its association to the climatic conditions in the atmosphere / Veranicos ocorridos na porção noroeste do estado do Rio Grande do Sul entre 1978 e 2005 e sua associação às condições climáticas na atmosfera
Agriculture plays an extremely important role in the economy of Rio Grande do Sul state. The target region of the present work in its northwest portion is represented by six cities: São Luiz Gonzaga, Santa Rosa, Cruz Alta, Iraí, Passo Fundo e Marcelino Ramos. It constitute a national focus of soya production and thus depend heavily on atmospheric condition
Publicado em: 2008
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9. Padrões de circulação anômala associados a episódios úmidos e secos no sul do Brasil / Anomalous circulation patterns associated with wet and dry events in southern Brazil
The characteristics of the atmospheric circulation associated with persistent wet and dry events in Southern Brazil during all seasons were studied from 1979 to 2002, using precipitation pentad data. The result shows that the dominant oscillations of rainfall variability have periods between 2 and 6 pentads. Superposition of different periods was also identi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/04/2007
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10. Estudo da variabilidade da piezometria dos aqüíferos freáticos na bacia do alto Rio Jardim - Distrito Federal
The objective of the present work is to increase the knowledge about the variability of the water table in porous shallow aquifer systems. The study area was the Rio Jardim watershed, situated in the southeast portion of the Federal District (Brazil) and characterized by intense agriculture use. The development of the research was based on monitoring wells w
Publicado em: 2007
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11. Padrões sinóticos de circulação atmosférica associados ao jato em baixos níveis a leste da Cordilheira ds Andes, na América do Sul / Atmospheric circulation patterns associated with the south america low level jet at east of the Andes
The objective of this studywas toidentify the atmospheric patterns circulationassociated with the South American Low-level Jet (LLJ). The zonal (u) and meridional (v) wind, geopotential height (f), temperature (T), specific humidity (q) and other variables from National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/06/2006
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12. An analysis of surface fluxes and of the microclimate on cerrado, sugarcane and eucalyptus: implications for regional climate changes / Uma análise dos fluxos de superfície e do microclima sobre cerrado, cana-de-açúcar e eucalipto, com implicações para mudanças climáticas regionais
This work investigates potential regional scale temperature and precipitation changes in the São Paulo state, caused by land use changes. We analised micrometeorological measurements, in the period February 2005 to February 2006, over three different ecosystems (cerrado, sugar cane and eucalyptus plantation). The surface energy balances showed that over the
Publicado em: 2006