gravitational field

Structure of the gravitational field of eastern Europe and some issues of regional geodynamics

Based on the studies performed earlier [2, 3, 5], and also the problems solved by regional geodynamics [4], we propose a combined method of studying the latter - the method of processing the accumulated information about the physical fields of specific regions, adequate to the nature of the processes being studied.

The analysis of Impact of Earth's figure ellipticity on Its internal structure in imitation of PREM model

The methods of calculation of gravity potential V and potential energy E for ellipsoidal planet for existing one-dimensional mass distribution were not worked out. That’s why now the derivation of formulas for simultaneous calculation of density mass’s distribution and potential and energy for the ellipsoidal body is actual.

By the earthquake prediction in areas of earth crust tension on measurements of stations of global navigation systems

Objective. The research objective is to determine relationship between crust tension forces and forces that operate in near-Earth space and earthquakes in entrails of the Earth, based on that was identifying opportunities for short-term earthquake prediction. Methods. Accumulation of earthquakes scores statistical information, their location and display time, as well as moon and sun (own observations, data from literature and Internet-resources) location information. Analysis of obtained data its comparison. Results.

Decomposition of the gravitational field of the triaxial ellipsoidal planet using a class of nonorthogonal harmonic functions

In this work is presented a potential of triaxial ellipsoid this help of converging rows. The koeficients which are determined integral descriptions of distributing function density of planet. This approach gives a possibility in a complex to study distributing of the masses of planet, its figure and its external gravity field.

 

Determination of the geoid – gravity field and topography of the Black sea according to the satellite altimetry data

Objectives. The method of satellite altimetry as a relatively new approach to precise satellite surveying, which provides the different Earth sciences by a most complete information about the state of the ocean and its changes over time. In particular this method uses in scientific researches of geodesy, oceanography and climatology. The models of ocean dynamic topography are based on the altimetry data also. Methodology.

The main equations for determining the harmonic expansion coefficients of the gravitational potential of the Earth according to the GOCE satellite

The last achievements of the physical geodesy is the project of European Space Agency – the GOCE satellite (Gravity of field and steady – state of Ocean Circulation Explorer) which uses the satellite gradientometry method. The gravitational field of the Earth is represented traditionally as a series of spherical harmonic functions, i.e. to model the gravitational field of the finite number of parameters, the so–called coefficients Cnm, Snm. In this paper we analyze the basic relationships for the determination of these coefficients.