[PDF] Top 20 Rev. Bras. Geof. vol.25 número3
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Rev. Bras. Geof. vol.25 número3
... A NMO (2-D) conventional simulated stack section is dis- played in Figure 4 for qualitatively compare the development of the obtained results, where it shows the low quality of the data [r] ... See full document
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Rev. Bras. Geof. vol.25 número3
... Acredita-se que o principal motivo decorra do ajuste inadequado entre as wavelets dos dados reais e a utilizada para gerar os dados calculados, sendo, portanto, necess´ario investigar qu[r] ... See full document
1
Rev. Bras. Geof. vol.25 número3
... investigac¸˜oes geof´ısicas, an´alises qu´ımicas e amostragem do solo com aplicac¸˜oes em agricultura de ...m´etodos geof´ısicos GPR- Ground Penetrating Radar , TDR- Time Domain Reflectometry , ... See full document
1
Rev. Bras. Geof. vol.25 número3
... O 210Pb est´a em desequil´ıbrio radioativo com o 226Ra sendo que as raz˜oes de atividade 210Pb/226Ra variam em torno de 0,7 na maior parte do perfil.. A atividade espec´ıfica do 210Pb ´e[r] ... See full document
1
Rev. Bras. Geof. vol.25 suppl.2
... neutral collision frequency (see Schunk & Nagy, 2000). A local perturbation in the plasma can grow linearly and take the form of a plasma bubble that may eventually grow further and rise upwards due to buoyant forces ... See full document
15
Rev. Bras. Geof. vol.25 suppl.2
... We have developed a local ionospheric conductivity model for the Brazilian equatorial E-region based on a constant neutral atmosphere model and on an empirical electron densities mo- del[r] ... See full document
8
Rev. Bras. Geof. vol.25 suppl.2
... Type I waves are moving at a speed that usually so closely approaches the ion-acoustic speed of the medium, no matter what the ambient electric field might be, that it has become an acce[r] ... See full document
9
Rev. Bras. Geof. vol.25 suppl.2
... Finally, we have seen that applying incoherent integrations to the obser- vational radar spectra of type 1 equatorial electrojet irregularities means to increase the percentage of right [r] ... See full document
9
Rev. Bras. Geof. vol.25 suppl.1
... RESUMO. Dados de batimetria de 12 kHz e anomalias magn´eticas do fundo oceˆanico foram empregados para calcular anomalias de profundidades na cordilheira mesoceˆanica entre as Ilhas de Ascens˜ao e St. Helena. A ... See full document
8
Rev. Bras. Geof. vol.25 suppl.2
... Electron Density height profiles estimated from different ty- pes of experiments namely a High Frequency capacitance probe, a Langmuir probe and a Plasma Frequency Probe during the occur[r] ... See full document
14
Rev. Bras. Geof. vol.25 suppl.2
... He developed during three years (2003-2005) activities of Undergraduate Research, studying the relationships between geomagnetic variations observed at the Earth’s surface and the Earth-[r] ... See full document
4
Rev. Bras. Geof. vol.25 suppl.2
... During the October 2003 disturbed period, the storm indu- ced eastward magnetospheric electric field that penetrated to the magnetic equator on the 29/30 and 30/31 nights and intensified[r] ... See full document
8
Rev. Bras. Geof. vol.25 suppl.2
... Here we present some recent results on gravity wave seasonal anisotropy obtained using all-sky (ASI) monochromatic imagers and novel measurements of seasonal temperature variability in t[r] ... See full document
10
Rev. Bras. Geof. vol.25 suppl.2
... In this work we have used Multitaper spectral analysis on the cos- mic ray Newark’s neutron monitor and S˜ao Martinho da Serra’s muon telescope data, and we could verify the efficiency o[r] ... See full document
5
Rev. Bras. Geof. vol.25 suppl.2
... Jairo Francisco Savian is a Physics Undergraduate student, attending the ninth semester, at the Federal University of Santa Maria (UFSM), is a trainee and currently is developing his fou[r] ... See full document
5
Rev. Bras. Geof. vol.25 suppl.2
... Fast forward interplanetary shocks (FFS) are characterized by positive jump in all interplanetary plasma parameters (solar wind speed, temperature and density) and interplanetary magneti[r] ... See full document
5
Rev. Bras. Geof. vol.18 número3
... A new view of marine minerals is emerging that links inorganic with organic processes and raises environmental issues.. On the continental shelf recovery of common materials comprising s[r] ... See full document
1
Rev. Bras. Geof. vol.18 número3
... Apresentamos aqui o estado da arte das pesquisas de exploração e explotação dos recursos minerais marinhos nos diferentes ambientes geológicos, caracterizando também os estudos ambientai[r] ... See full document
2
Rev. Bras. Geof. vol.18 número3
... The Brazilian government through the Interministerial Commission for the Marine Resources (CIRM) is aware of this issue and established in 1997 the REMPLAC Program to evaluate the potent[r] ... See full document
2
Rev. Bras. Geof. vol.18 número3
... The main mineral deposits of potential economic value that occur on and beneath the seafloor in the extended continental shelf areas are: placer deposit, phosphorites, evaporites, polyme[r] ... See full document
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