Mesoscale Circulation
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Determination of net sediment transport patterns in Lirquén Harbor, Chile, through grain-size trend analysis: a test of methods
During June 1997, bottom sediment samples were collected at 76 stations on a rectangular grid in a small port (Lirquén Harbor, south-central Chile) facing siltation problems. The spatial changes in grain-size parameters, analyzed by using three different methodologies to infer net sediment transport paths, are compared with the measured water circulation of
Publicado em: 2010
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2. Análise da trajetória e da circulação de sistemas precipitantes / Analysis of the trajectory and circulation of the precipitating systems
A partir da técnica " extit{Least Square- Velocity Azimuth Display}" aplicada aos dados de velocidade radial, obtida a partir da varredura volumétrica de um dos radares da rede do Departamento de Controle do Espaço Aéreo, foi obtida uma metodologia que permite a recuperação do vento médio horizontal. Além disso, com a sequência temporal dos perfis v
Publicado em: 2010
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3. 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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4. ZIMORA - UM MODELO NUMÉRICO 3D DE DISPERSÃO ATMOSFÉRICA / ZIMORA - A 3D NUMERICAL MODEL FOR ATMOSPHERIC DISPERSION
In this thesis, we presents a development and validation of a 3D numerical model for the advection-diffusion equation. Models of this kind has been developed for scientific investigations and to support atmospheric emissions control and environmental policy decisions. To develop this model, we used the computational implementation of an explicit numerical sc
Publicado em: 2009
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5. Experimentos com o modelo regional eta em diferentes configurações durante o período salljex e mecanismos de mesoescala associados ao desenvolvimento de scm / Experiments with the regional eta model in different settings during the salljex period and mesoescale mechanisms associated with MCS development
The rainfall regime over southern Brazil, Uruguay and northern Argentina is strongly influenced by Mesoscale Convective Complexes (MCCs) that develop during night time associated with the Low Level Jet (LLJ) to the east of Andes. As they are mesoscale systems, their predictability depends on the model resolution and ability in representing the main features
Publicado em: 2008
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6. Atividade Convectiva no Sul da América do Sul / Mesoscale Convective Systems (MCS) at South of South America
In this work synoptic and mesoscale aspects are analyzed in association to the formation of Mesoscale Convective Systems (MCS) at South of South America (SA) that reached the State of Rio Grande do Sul (RS) in some moment during its life time. The selected period involves the month of February of the years 2002 to 2005. Among the identified MCS, two cases ha
Publicado em: 2006
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7. EXPORTAÇÃO DE ÁGUAS PROFUNDAS NA REGIÃO NOROESTE DO MAR DE WEDDELL, ANTÁRTICA: ÊNFASE NA VARIABILIDADE TEMPORAL
The outflow of cold, dense water from the Weddell Sea into the ocean basins to the north plays a key role in balancing the global heat budget. We estimate the geostrophic flow patterns in the northwestern Weddell Sea during the Brazilian DOVETAIL 2000 and 2001 austral summer cruises, using box inverse methods applied to hydrographic data. The analysis is foc
Publicado em: 2006
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8. Surface oceanic circulation along the S-SE coast of Brazil, obtanined by satellite tracked drifters / Analise da circulacao superficial oceanica na costa Sudeste-Sul do Brasil, a partir da utilizacao dos dados de derivadores rastreados por satelites
This study is about the surface oceanic circulation in the Southwest Atlantic, in particular along the South-Southeast coast of Brazil (22°S,43°W to 38°S,53°W). The data utilized are obtained from 13 WOCE (World Ocean Circulation) standard LCDs (Low Cost Drifters), launched in 1993 and 1994, as part of project COROAS (Oceanic Circulation in the Western R
Publicado em: 1998
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9. Comparação da circulação obtida através da trajetória de uma bóia de deriva rastreada por satélite e de dados hidrográficos no Estreito de Bransfield / Comparison of circulation obtained through the trajectory of a drifting buoy tracked by satellite and hydrographic data in the Bransfield Strait
Uma bóia oceanográfica de deriva desenvolvida pelo INPE e posicionada pelo Sistema ARGOS, através da utilização dos satélites NOAA-6 e NOAA-9 foi lançada no dia 10 de março de 1986, no Estreito de Bransfield na posição 63°07, 13 S, 60°07, 90 W. A bóia de deriva permaneceu na área até o dia 14 de março de 1986, quando foi recolhida pelo Navio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/02/1989