The place of geodesy and gravimetry in the complex Earth sciences
Journal Title: Геодинаміка - Year 2016, Vol 20, Issue 1
Abstract
The aim of this article is the role and place of geodesy and gravimetry in the complex Earth Sciences and making recommendations for their using in various fields of knowledge of science. Problem and its relation with important scientific and practical tasks. In the article we consider some issues of the current state and prospects of geodesy and gravimetry. So modern geodesy – natural branch, which includes several areas: geodesy and topography, applied engineering or surveying, marine surveying, space geodesy, higher geodesy and physical geodesy and others. The task of modern geodesy is not only the study of the physical surface and external gravitational field of the Earth, but also the study of equipotential surfaces of equal gravity potential. The current state of geodesy is characterized by the creation of a unified state or global coordinate system and parameters of the external Earth's gravitational field, and a new system of normal heights and updated modernized gravimetric system. Becouse of that the need for a high-precision gravimetric information has increased in connection with the widespread introduction of satellite technology for solving geodetic problems. It is emphasized that modern geodesy conclusively has won the status of the most fundamental, most versatile, most accurate and essential area of science education and production in complex of the Earth sciences. In the article we also considered the short history of appearance and development the gravimetric studies in the world and in Ukraine. Development of gravimetry is defined by technical capabilities and scientific tasks of geodesy and geophysics, and the gravimetry task is to determine the parameters of the Earth gravitational field and other celestial bodies as a function of location and time using measurements of gravity and gravity gradient. Feature of gravity development during the last three centuries is the continuous extension of the studied areas of continents and oceans, and thus precision of gravimetric measurements kept increasing and reached to the level of one microGal. We make analysis of Earth gravimetric study based on land and sea measuring of gravity using data of satellite altimetry and gradiometry. The detail of gravity field for the needs of geodesy, geophysics, geology and oceanography is estimated nearly 1 mGal for gravity anomalies and the accuracy of the quasigeoid heights is nearly 1 – 2 cm. We adjusted the current state of gravimetric knowledge on Ukraine area and noted the discrepancy of gravimetric network by quality and density of points and prospect of construction the new country integrated into the global system of geodetic providing.
Authors and Affiliations
Petro Dvulit
Keywords
Related Articles
- EP ID EP194244
- DOI 10.23939/jgd2016.01.032
- Views 159
- Downloads 0
Improvement of method of the differentiated determination of coefficient of expulsing of attandand water by industrial flows
Purpose. The actual problem is the proposal of original methods for differentiated determination of the coefficient of displacement of produced water industrial waste depending on the filtration characteristics of the re...
Using data of infrasound measurements in Ukraine for explosions and earthquakes identification
Purpose. The purpose of research is to determine the possibility of using of infrasound measurements that carried out in Ukraine for verification of registered seismic events and using of infrasound method as one of the...
Conglomerates with the exotic material in the Ukrainian Carpathians – distribution, composition, probable genesis
Purpose. The aim of the study is to analyze the features of the exotic conglomerates composition and their probable sources of origin in the Ukrainian Carpathians as well as to create a geological sketch of their distrib...
Results of determination of horizontal deformations of the earth’s crust of Europe according to the data of GNSS-observations and their relation with the tectonic structure
The aim. The aims of this study were: to calculate the parameters of horizontal deformation of Earth’s crust of Europe on the basis of annual velocity vectors of the horizontal displacement of permanent GNSS - stations,...
Density model of the Kolomiya paleovalley along geotravers SG-I (67) Nadvirna – Otyniya – Ivano-Frankivsk
Purpose. The aim of this paper is to clarify the deep structure and prospects of the oil and gas potential in the Kolomiya paleo-valley along the seismo-geotravers SG-I (67), which run along the line Nadvirna-Kolomiya-Ot...