[PDF] Top 20 Rev. Bras. Geof. vol.25 número1
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Rev. Bras. Geof. vol.25 número1
... Knowing the verti- cal component of the global deformation of the crust, for example the one induced by atmospheric loading, is fundamental for the precise determination of the vertical [r] ... See full document
6
Rev. Bras. Geof. vol.25 número1
... Thus, a systematic component at Imbituba Datum was determined by comparing a South American gravimetric geoid, obtained by least-squares collocation, and GPS/leveling geoid, determined a[r] ... See full document
1
Rev. Bras. Geof. vol.25 número1
... A primeira quantidade invertida (chamada func¸˜ao geom´etrica) ´e obtida pela raz˜ao entre a intensidade do gradiente da anomalia magn´etica e a intensidade do campo magn´etico anˆomalo.[r] ... See full document
1
Rev. Bras. Geof. vol.25 número1
... O comportamento de elementos maiores, menores e trac¸os nas rochas intrusivas e extrusivas do tipo Pitanga, incluindo as mais diferenciadas, ´e compat´ıvel com um processo de evoluc¸˜ao [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
... In this work we analyze the terdiurnal tide distribution and the nonlinear interaction between diurnal and semidiurnal tides as a possible mechanism for generation of that tidal componen[r] ... See full document
10
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
... 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.17 número1
... In the adoption of this method to the present dataset, data of some 52 nighttime segments were used. The choice of the segments was based on their wide frequency content and varied polarization. In the computations of ... See full document
23
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.17 número1
... A 3D GRAVITY MODEL OF THE SEDIMENTARY DEEP BASIN OF ISCHIGUALASTO- VILLA UNIÓN (SAN JUAN AND LA RIOJA), ARGENTINA- Areal gravimetric surveys were carried out in the Ischigualasto-Villa [r] ... See full document
9
Rev. Bras. Geof. vol.17 número1
... Se usa la serie incompleta de valores horarios de la foF2 sobre Concepción (36.8º S; 73.0º O), observados en el intervalo 1958 – 1989, para determinar inicialmente una serie completa de [r] ... See full document
8
Rev. Bras. Geof. vol.17 número1
... Figure 5 - Conversion term between available potential energy of quasi- stationary flow and available potential energy of the high-pass filtered disturbances for cyclonic system composit[r] ... See full document
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