Barotropic Model
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Potenciais influências de anomalias positivas e negativas na camada de gelo marinho no mar de Ross na circulação atmosférica do Hemisfério Sul / Potential influences on the southern hemisphere atmospheric circulation of negative and positive sea ice extension anomalies in the ross sea
This study have used the CPTEC/INPE AGCM to explore the role of sea ice extent in the Ross Sea as a forcing of the asymmetric atmospheric circulation in the southern hemisphere during the austral winter (July-September), on a seasonal scale. The impacts have been assessed from the standpoint of positive and negative observed anomalies in ice extent in the Ro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2011
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2. Influências remotas na previsibilidade, estrutura e ciclo de vida da Zona de Convergência do Atlântico Sul / Remote influences on South Atlantic Convergence Zone predictability, structure and life cycle
Neste estudo é feita uma investigação sobre a modulação espacial das anomalias de convecção em episódios de Zona de Convergência do Atlântico Sul (ZCAS) registrados pelos boletins mensais da Climanálise do CPTEC/INPE em 19 verões (verão estendido outubro a março) compreendidos entre o período de 1990 e 2009. Estes eventos são divididos em tr�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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3. Bianchi type I tilted cosmological model for barotropic perfect fluid distribution with heat conduction in general relativity
Bianchi Type I tilted cosmological model for barotropic perfect fluid distribution with heat conduction is investigated.To get the deterministic solution, we have assumed barotropic condition p = γ ∈ ,0 < γ < 1, p being isotropic pressure, ∈ the matter density and a supplementary condition between metric potentials A, B, C as A = (BC)n where n is the c
Brazilian Journal of Physics. Publicado em: 2010-09
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4. Barotropic instability process of Brazil current at Santos Basin / Processos de instabilidade barotrópica da Corrente do Brasil na Bacia de Santos
The Brazil Current (BC) is formed at the bifurcation of the southern branch of the South Equatorial Current and flows south-southeastward off the east, southeast and southern Brazilian continental margin, exhibiting intense meso-scale activity between the Vitória-Trindade Ridge (20oS) and Cape Santa Marta Grande (28oS). The knowledge of such activity, built
Publicado em: 2009
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5. Resposta da Plataforma Continental Sudeste a ventos sazonais e sinóticos de verão: estudos numéricos / Response of the South Brazil bight to summer seasonal and synoptic winds: numerical studie
In order to study the pertubations caused on the South Brazil Bigth (SBB) caused by the passage of a cold front during Summer, a mean basic state for currents was obtained using the POM (Princeton Ocean Model) through diagnostic simulation, followed by a short round prognostic. The mean currents modeled are in certain instancies similar to the currents measu
Publicado em: 2008
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6. "Experimentos e modelagem numérica com aplicação ao Estuário Tropical do Rio Curimataú, RN" / Experiments and numerical model with application to the tropical estuary of the Catimataú river, RN
The distribution and variability of the termohaline properties and the three-dimensional circulation of the Curimataú river estuary had been studied with the application of the numerical model of simulations Delft3D-Flow, validated with experimental data measured during two consecutive cycles of neap and spring tide. Two numerical grids were applied with th
Publicado em: 2006
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7. "Interação não-linear entre ondas atmosféricas: um possível mecanismo para a conexão trópicos-extratrópicos em baixa-frequência" / Nonlinear interaction among atmospheric waves: a possible mechanism for the tropics-extratropics connection on low-frequency time-scales.
The asymptotic perturbation theory based on multiple scales in time is used to investigate the nonlinear interactions among equatorial waves in an equatorial beta-plane adiabatic primitive equation atmospheric model in isobaric coordinates. The equatorial Rossby, mixed Rossby-gravity, Kelvin and inertio-gravity waves, with several vertical structures, are ob
Publicado em: 2006
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8. 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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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. An equilibrium statistical model for the spreading phase of open-ocean convection
A “most probable state” equilibrium statistical theory for random distributions of hetons in a closed basin is developed here in the context of two-layer quasigeostrophic models for the spreading phase of open-ocean convection. The theory depends only on bulk conserved quantities such as energy, circulation, and the range of values of potential vorticity
The National Academy of Sciences.
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11. Models for stochastic climate prediction
There has been a recent burst of activity in the atmosphere/ocean sciences community in utilizing stable linear Langevin stochastic models for the unresolved degree of freedom in stochastic climate prediction. Here several idealized models for stochastic climate modeling are introduced and analyzed through unambiguous mathematical theory. This analysis demon
The National Academy of Sciences.
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12. Kinetics and mechanism of the barotropic lamellar gel/lamellar liquid crystal phase transition in fully hydrated dihexadecylphosphatidylethanolamine: a time-resolved x-ray diffraction study using pressure jump.
The kinetics and mechanism of the barotropic lamellar gel (L beta')/lamellar liquid crystal (L alpha) phase transition in fully hydrated 1,2-dihexadecyl-sn-glycero-3-phosphoethanolamine (DHPE) has been studied using time-resolved x-ray diffraction (TRXRD). The phase transition was induced by pressure jumps of varying amplitudes in both the pressurization and