[PDF] Top 20 Rev. Bras. Geof. vol.23 número2
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Rev. Bras. Geof. vol.23 número2
... The peculiar connection between the in- termediate and sporadic E layer is explained in terms of the quite effective charge transfer chemical reaction between molecular and metallic spec[r] ... See full document
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Rev. Bras. Geof. vol.23 número2
... RESUMO. O imageamento da porosidade ´e uma representac¸˜ao gr´afica da distribuic¸˜ao lateral da porosidade da rocha, estimada a partir de dados de perfis geof´ısicos de poc¸o. Apresenta-se aqui uma metodologia ... See full document
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Rev. Bras. Geof. vol.23 número2
... Extrair informac¸˜oes litol´ogicas da subsuperf´ıcie atrav´es de levantamentos de dados s´ısmicos tem se tornado um desafio cada vez maior `a prospecc¸˜ao s´ısmica, pois a hip´otese de e[r] ... See full document
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Rev. Bras. Geof. vol.23 número2
... O conjunto disp˜oe ainda, de um sistema mecˆanico que permite posicionar o sistema de transdutores (transmissor e receptor) em posic¸˜oes arbitr´arias com resoluc¸˜ao de 1 mm e precis˜ao[r] ... See full document
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Rev. Bras. Geof. vol.23 número2
... The first one is the combination of the Wiener-Hopf-Levinson (WHLP) and the common reflection surface (CRS) stacking techniques, here called WHLPCRS, where the operator is exclusively de[r] ... See full document
1
Rev. Bras. Geof. vol.23 número2
... Quando o contraste de impedˆancia ´e fraco, as aproximac¸˜oes lineares para a refletividade qP s˜ao mais convenientes para invers˜ao da densidade e dos parˆametros el´asticos usando as a[r] ... See full document
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Rev. Bras. Geof. vol.19 número2
... In this work, we model the temperature variation (frequency variation) due to the Doppler effect and apply the new temperature distribution in the thermal re-emission model. The total fo[r] ... See full document
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Rev. Bras. Geof. vol.23 número1
... ABSTRACT. In this research, geophysical method GPR – Ground Penetrating Radar was used to characterize metallic and plastic drums buried in an area of controlled tests, called “Controlled Site of Shallow Geophysics” ... See full document
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Rev. Bras. Geof. vol.18 número2
... for the crustal structure at 32° S latitude. This model takes into account: 1) a velocity model derived from seismic data (Cominguez, 1989, Pardo & Fuenzalida, 1988), and the ne[r] ... See full document
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Rev. Bras. Geof. vol.18 número2
... In Part 1 of this paper (Helbig, 1998 - Rev. Bras. Geof. 16 (2–3):103–114) it was shown that a medium consisting of a periodic sequence of layers is, in the long-wavelength approximation, equivalent ... See full document
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Rev. Bras. Geof. vol.18 número2
... Geochemical analyses showed that the Pampeano aquifer has bicarbonate sodium water, with an increase of electrical conductivity, sodium and bicarbonates contents at a local recharge zon[r] ... See full document
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Rev. Bras. Geof. vol.19 número2
... A new airglow observation site in the equatorial zone was set up at São João do Cariri (Paraíba State) where a multi-filter airglow photometer was installed, measuring the atomic oxygen[r] ... See full document
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Rev. Bras. Geof. vol.20 número2
... This paper illustrates a new reservoir characterization approach using seismic pattern recognition methodology based on principal component analysis, trace shape and 3D multi-attributes [r] ... See full document
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Rev. Bras. Geof. vol.19 número2
... In this case, the cross-track component is null, the satellite spin axis lies on the orbital plane and the thermal energy source is the earth.. Figura 2 - Componentes radial e transvers[r] ... See full document
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Rev. Bras. Geof. vol.19 número2
... Prediction of precipitation in northeast Brazil for boreal spring 1997 using an atmospheric GCM with persisted SST anomalies, Climate Prediction Center (CPC), Experimental Long-lead Fore[r] ... See full document
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Rev. Bras. Geof. vol.23 número1
... m´etodos geof´ısicos de investigac¸˜ao tem conquistado espac¸o no ambiente urbano, devido `a dificuldade em se aplicar m´etodos ...m´etodos geof´ısicos de ambig¨uidades inerentes `as interpretac¸˜oes, ... See full document
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Rev. Bras. Geof. vol.19 número2
... (1993), Servain (1991) and Servain and Lukas (1990) for the Atlantic region and the NE Brazil coast, Kane (1999) showed that for some El Niño events shown in Table 2, the droughts did n[r] ... See full document
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Rev. Bras. Geof. vol.20 número2
... In this work an Eulerian model and a Lagrangian stochastic particle model were used to simulate the transport and diffusion of a passive pollutant released during the stable Prairie Gras[r] ... See full document
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Rev. Bras. Geof. vol.20 número2
... A general method to derive eddy diffusivities depending on source distance calculated directly with the Batchelor theory for a turbulent moderately unstable PBL is proposed.. (10), in fu[r] ... See full document
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Rev. Bras. Geof. vol.21 número2
... From an a priori selection of the number of knots that define the adjusting spline, but not their location in that curve, the method automatically determines the adjusting cubic spline i[r] ... See full document
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