Atlantic Dipole
Mostrando 1-10 de 10 artigos, teses e dissertações.
-
1. Variabilidade oceânica associada à variabilidade climática da vazão na bacia do rio São Francisco / Oceanic variability related to river outflow at São Francisco Hydrographic basin
This research concerned to propose a valuation about the relationship between annual oceanic behavior and river outflow at São Francisco Hydrographic Basin, in Brazil, for the period from 1968 to 2004. Linear model based on multiple regression were built for annual river outflow at Ponte da Taquara, located at High São Francisco sub-basin. Climatic indexes
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/02/2012
-
2. 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
-
3. Impact of atmospheric soundings over tropical Atlantic on the moisture budget of Amazonia / Impacto de sondagens atmosféricas sobre o Atlântico tropical no balanço de umidade da Amazônia
The Regional Physical-space Statistical Analysis System (RPSAS), operated by the (Brazilian) Center for Weather Forecasts and Climate Studies (CPTEC - Centro de Previsão de Tempo e Estudos Climáticos) was used in this work to evaluate the impact of assimilated geopotencial profiles from AIRS (Advanced Infrared Sounder) system on RPSAS s analyses and predic
Publicado em: 2009
-
4. 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
-
5. Influência de algumas forçantes climáticas no período chuvoso da Região Sudeste do Brasil e suas conseqüências para as culturas da soja e do milho / Influence of climate forcings on the rainy period of Southeastern Brazil and consequences for soybean and corn crops
Dados diários de estações pluviométricas e meteorológicas foram utilizados com o propósito de analisar estatisticamente a influência dos forçantes climáticos El Niño Oscilação Sul (ENOS) e Dipolo do Atlântico Tropical no comportamento da precipitação em diferentes escalas temporais, durante o período chuvoso (PC) da Região Sudeste do Brasil
Publicado em: 2006
-
6. Relações entre as anomalias de TSM do atlântico e pacífico e as precipitações na amazônia oriental / Relationships between the atlantic and pacific SST anomalies and the eastern amazon rainfall
The seasonal and interannual rainfall variability in the Eastern Amazon region was related to the Tropical, South Atlantic and Equatorial Pacific SSTA. 3 x 3 contingency tables, evaluated by the Relative Operating Characteristics Score were used to check the simultaneous and up to 12 months lagged occurrence of 3 rainfall categories (below, near and above no
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/12/2003
-
7. Relações entre as anomalias de TSM do atlântico e pacífico e as precipitações na amazônia oriental / Relationships between the atlantic and pacific SST anomalies and the eastern amazon rainfall
The seasonal and interannual rainfall variability in the Eastern Amazon region was related to the Tropical, South Atlantic and Equatorial Pacific SSTA. 3 x 3 contingency tables, evaluated by the Relative Operating Characteristics Score were used to check the simultaneous and up to 12 months lagged occurrence of 3 rainfall categories (below, near and above no
Publicado em: 2003
-
8. Interações trópicos-extratrópicos na escala de tempo intrassazonal durante o verão astral e seus efeitos na América do Sul / Tropical extratropical intraseasonal interactions during austraul summer and effects in south
In this study the interaction among the tropical convection in Indonesian region, the extratropical flow and the tropical convection in the South Atlantic Convergence Zone (SACZ) was analysed regarding the intraseasonal variability. The analyses were performed applying statistical techniques to the daily NCEP/NCAR reanalysis data set and to daily OLR obtaine
Publicado em: 2002
-
9. Sobre a Influência do El Niño, La Niña e Padrão De Dipolo do Atlântico na precipitação da amazônia durante 1960-1998
A influência dos modos dc variabilidade climática dc grande escala dominantes no Pacifico e Atlântico nas chuvas da Amazônia é investigada. A técnica de compósitos das anomalias dc precipitação na Amazônia é usada neste trabalho. Os anos base destes compósitos são aqueles do período 1960-1998 com ocorrências de extremos na Oscilação Sul (El
Acta Amaz.. Publicado em: 2000-06
-
10. The influence of the Pacific and Atlantic ssts in the South America monsoon rainfall / A influência das TSMS dos ocenos Pacíficos e Atlântico nas chuvas de monção da América do Sul
Monthly information of outgoing long wave radiation (OLR), sea surface temperature (SST), and rainfall from 22 meteorological stations in eastern South America were used to identify the rainfall characteristics of the South American Monsoon systems (SAMS). The 1961-1999 rainfall climatology for the area allowed the identification of two seasons with marked p
Publicado em: 2000