Ocean Currents
Mostrando 1-12 de 26 artigos, teses e dissertações.
-
1. Dinâmica da desembocadura do rio Itanhém, Alcobaça, BA / Morphodynamics at the Itanhaém Inlet, Alcobaça, BA
The morphodynamic processes at inlet systems are related to a variety of forcing conditions that create unique hydrodynamic conditions. The interaction of tidal currents, wave conditions, and river discharge at different levels result in complex dynamic patterns. The present work aims to understand the processes that control the dynamics of the Itanhaém Riv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/10/2010
-
2. A finite element model for the ocean circulation driven by wind and atmospheric heat flux
A finite element model for solving ocean circulation forced by winds and atmospheric heat fluxes is presented. It is vertically integrated 1 1/2 layer model which solves the motion and continuity hydrodynamic equations coupled with the advection-diffusion transport equation for temperature. A space-time Petrov-Galerkin formulation is used to minimize the und
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-03
-
3. Oil spill modeling off the Brazilian eastern coast: the effect of tidal currents on oil fate
O presente estudo teve por objetivo realizar modelagens de diferentes cenários de derramamentos de óleo em blocos de petróleo (BM-CUM-1, BM-CUM-2, J-M-259 e ES-M-418) em áreas adjacentes ao Recife de Abrolhos, a fim de verificar o efeito da maré no espalhamento do óleo na plataforma leste brasileira. Foram realizadas simulações de 30 dias de derramam
Revista Brasileira de Geofísica. Publicado em: 2009-12
-
4. Geobiologia do Atol das Rocas, Atlântico Sul Equatorial
This thesis approaches the geobiology of the only Atoll in the South Atlantic Ocean. Different classifications were made for Rocas Reef Complex along the nineteenth and twentieth century, which are evaluated historically. Biogeomorphological analysis and mapping of the reef units were done on the Rocas Atoll for the comprehension of the sedimentary dynamic a
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2009
-
5. Distribution, income rate, chemical composition and identification of plastic pellets emissions at Santos Bay, SP, Brazil / Distribuição, taxa de entrada, composição química e identificação de fontes de grânulos plásticos na Enseada de Santos, SP, Brasil
Among the various pollutants that threaten the ocean are plastic pellets, prime resource in the form of 5mm granules that are being dumped in the environment during production, utilization and transport stages. This project aims to understand of the contamination of the beaches of the Santos Bay, coast of the state of São Paulo, as a pilot area to address t
Publicado em: 2009
-
6. 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
-
7. 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
-
8. Transporte de volume e condições hidrográficas no Canal de São Sebastião / Volume transport and hydrographic conditions in the São Sebastião Channel
Current data obtained using an "Acoustic Doppler Current Profiler " (ADCP) towed by a research boat and nearly synoptic hydrographic data were sampled in the São Sebastião Channel (SSC) during six cruises between 2001 and 2006. This study also uses ocean-surface wind fields for the South Brazil Bight (SBB) area derived from the QuikSCAT scatterometer. The
Publicado em: 2008
-
9. Análise da dispersão de larvas de lagostas no Atlântico tropical a partir de correntes geotróficas superficiais derivadas por satélites / Use of geostrophic currents derived from radar altimeter to study lobster larvae dispersion in the tropical atlantic
Three species of spiny lobster are harvested along the Brazilian coast (Panulirus argus, P. laevicauda and P. echinatus). The annual revenue amounts 50 to 60 million US dollars. These species have a relatively long planktonic larval phase (about one year), that enables the mean ocean currents to transport the larvae over long distances away from the original
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/05/2006
-
10. Benthic foraminiferal paleoecology of upper holocene of Sepetiba Bay, Rio de Janeiro / Paleoecologia de foraminíferos bentônicos do holoceno superior da baía de Sepetiba, Rio de Janeiro
This work was developed from analysis of benthic foraminifera associations encountered in Sepetiba Bay and Guaratiba Mangrove holocenic sediments. Sepetiba Bay is a semi-confined body of water, that is a part of Sepetiba- Guaratiba Coastal complex at Rio de Janeiro southwest. It has been used six cores from Guaratiba Mangrove and five cores from Sepetiba Bay
Publicado em: 2006
-
11. Allozymic variation and differentiation in the chilean blue mussel, Mytilus chilensis, along its natural distribution
Genetic differentiation in the Chilean blue mussel Mytilus chilensis (Hupé 1854) was investigated based on the variation in the allozyme frequencies of Pgm, Gpi, Icd, Me, Gsr, Lap and Pep in eight samples collected along 1800 km from Arauco (VIII Region) to Punta Arenas (XII Region). Despite the large geographic separations, values of Neis unbiased genetic
Genetics and Molecular Biology. Publicado em: 2006
-
12. Application of ADCP acoustic correntómetro in marine and estuarine environments of Paraíba and Ceará - Northeast of Brazil / Aplicação do correntómetro acústico ADCP em ambientes marinhos e estuarinos do Ceará e Paraíba - Nordeste do Brasil
The knowledge of the agents acting on coastal dynamics is very important for the management and the adequate use of the littoral zone. The ADCP is an instrument that was using successfuly since some years (decade of 80) for water current measurements in ocean and estuarine areas. In this work, the ADCP was aplicated in coastal areas (between Fortaleza and Pe
Publicado em: 2006