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Sep 14, 2017Open    AccessArticle

Statistical Analysis of Natural Water Conductivity Data Behavior in Two Wells: Seismic Coastal Border Limits of Guerrero-Oaxaca States, Mexico

Fidel Martínez-García
In this document, with the purpose of strengthening more in the knowledge of the previous events on the earthquakes, the possible connection between natural voltage and electromagnetic energy emanating from the inner layers of the Earth and the seismic activity in the Mexican seismic coastal border, is evaluated, through an indirect estimation of the statistical analysis of natural water conductivity data (μS/cm) and the seismic a

Mar 28, 2017Open    AccessArticle

The Precursor of Tectonic Earthquake in Telluric Current

Igor Petrovich Dobrovolsky
The calculation of the precursor of the tectonic earthquake in the telluric current is carried out on the basis of the main equations of the telluric current and the theory of preparation of the tectonic earthquake. Results do not contradict data of field observations. Methodical significance of work is especially important.

Mar 09, 2016Open    AccessArticle

Impulse Bursts of Geomagnetic Pulsations as the Ground Signature of Contact of Interplanetary Irregularity with the Dayside Magnetopause

V. A. Parkhomov, B. A. Dovbnya, N. L. Borodkova, A. V. Dmitriev, V. V. Safargaleyev, A. Y. Pashinin
The aim of the present article was to analyze features of interactions between an interplanetary shock wave and the magnetosphere on the basis of comparative analysis of geomagnetic variations observed during a sudden commencement (SC) by satellites and ground-based stations with high time resolution. A case study of the interaction of an interplanetary shock wave (ISW) with the magnetosphere was carried out on April 23, 2012. Statistical analysis was based on 11 SC events occurring from 1988 to...

Dec 23, 2015Open    AccessArticle

Cumulative Perturbations Affecting a Spacecraft on a Mars Equatorial Orbit from the Waxing and Waning of the Polar Caps of the Planet

Jean-Pierre Barriot
We demonstrate in this paper that periodic variations of the J2 gravity coefficient of a planet induce small cumulative perturbations on a given family of circular equatorial orbits, and that these perturbations could be measurable with current radiosciences technology. For this purpose, we first consider a Poincaré expansion of the Newtonian equations of motion. Then, by using Floquet’s theory, we demonstrate that, unlike the excitation mechanism, the perturbations are non- pe...

Nov 09, 2015Open    AccessArticle

The Estimation of the Error at Richardson’s Extrapolation and the Numerical Solution of Integral Equations of the Second Kind

Igor Petrovich Dobrovolsky
The mode of definition of the error at polynomial Richardson’s extrapolation is described. Along with the table of extrapolations the new magnitudes reflecting expediency and efficiency of extrapolation are entered. On concrete examples it is shown that application of Richardson’s extrapolation to a solution of integral equations has appeared rather effective and gives a solution with a high exactitude. Application of formulas of interpolation leads to a solution in the analytical aspect.

Jul 08, 2015Open    AccessArticle

Unidimensional Inhomogeneous Isotropic Elastic Half-Space

Igor Petrovich Dobrovolsky
The homogeneous system of the equations of the linear theory of elasticity for the isotropic environment with one-dimensional continuous heterogeneity is considered. Bidimensional transformation Fourier is applied and the problem for images is led to the ordinary differential equations. Generally, the differential equations are transformed in integro-differential and the algorithm of such transformation is resulted. Solutions of specific problems are resulted.

Jun 09, 2015Open    AccessArticle

Features of the Ionosphere around the Time of the 5th August, 2014 M5.5 Orkney Earthquake

Enoch Oluwaseun Elemo, Daniel Okoh
In this paper, presentation of specific features of TEC behaviour as a possible precursor of Orkney earthquake of August 5th, 2014 (M5.5) was made. To achieve this, TEC data from Suth station and GIM TEC maps were used. The period understudied (prior to and after the earthquake) experienced quiet geomagnetic situation which made the analysis much easier. A characteristic anomaly was noticed from 4 days before the earthquake and it was found out that the day-time TEC increases significantly and c...

Jun 05, 2015Open    AccessArticle

Ionospheric Anomalies around the Time of the Powerful Nabro’s Eruption Triggered by June 12, 2011 Earthquakes

Enoch Oluwaseun Elemo
Ionospheric variability resulting from earthquake events is a known phenomenon as revealed by various seismo-ionospheric coupling studies. Variations resulting from seismo-ionospheric couplings are known to be much weaker, and noted to occur only locally in an area that is specified by the magnitude of the earthquake. Whereas disturbances generated by other sources like geomagnetic storms, exhibit a more global behaviour. For this study, GPS-TEC data of 31 days (15 days before and 15 days after ...

Jun 01, 2015Open    AccessArticle

Ionospheric Anomalies Observed by GPS-TEC Prior to the 3rd of July 2013 Uganda’s Earthquake

Enoch Elemo
Recently ionospheric variability remains one of the most intensive studies in the area of ionospheric physics. Despite the massive improved knowledge of its dynamics, the ability to use this data to provide early, as well as valid warning of upcoming earthquakes (seismo-ionospheric coupling) is still controversial. However, anomalous behaviours of TEC in the ionosphere before the occurrence of earthquakes have received several attentions by scientists. In this paper, GPS-TEC variations of 31 day...

Feb 26, 2015Open    AccessArticle

Accurate Age of the Earth Calculation by a New Fundamental Parameter

Mohammad Salehi Alashti
The most typical old question that scientist struggle with is the exact age of the earth. Accepted earth’s age is about 4.54 billion years (plus or minus about 1%) which derives from several lines of evidence with many involved assumptions. Furthermore this age could not be computed directly and solely from the earth and its determinant properties without contemplate suppositions. Also no scientific method can prove earth’s actual age and the exact accretion time of earth as yet. In this paper e...