Open AccessAn Analysis of Choosing Gravity Anomalies for Solving Problems in Geodesy, Geophysics and Environmental Engineering
Author(s) -
Vytautas Puškorius,
Eimuntas Paršeliūnas,
Petras Petroškevičius,
Romuald Obuchovski
Publication year - 2020
Publication title -
environmental engineering
Language(s) - English
Resource type - Conference proceedings
ISSN - 2029-7092
DOI - 10.3846/enviro.2020.684
Subject(s) - geodetic datum , geoid , geodesy , gravitational field , gravity anomaly , geology , geophysics , gravimetry , gravity of earth , context (archaeology) , free air gravity anomaly , field (mathematics) , mathematics , physics , bouguer anomaly , geotechnical engineering , oil field , paleontology , astronomy , pure mathematics , reservoir modeling , measured depth
Gravity anomalies provide valuable information about the Earth‘s gravity field. They are used for solvingvarious geophysical and geodetic tasks, mineral and oil exploration, geoid and quasi-geoid determination, geodynamicprocesses of Earth, determination of the orbits of various objects, moving in space around the Earth etc. The increasingaccuracy of solving the above mentioned problems poses new requirements for the accuracy of the gravity anomalies.Increasing the accuracy of gravity anomalies can be achieved by gaining the accuracy of the gravimetric and geodeticmeasurements, and by improving the methodology of the anomalies detection. The modern gravimetric devices allowto measure the gravity with an accuracy of several microgals. Space geodetic systems allow to define the geodeticcoordinates and ellipsoidal heights of gravimetric points within a centimeter accuracy. This opens up the newopportunities to calculate in practice both hybrid and pure gravity anomalies and to improve their accuracy. In thiscontext, it is important to analyse the possibilities of detecting various gravity anomalies and to improve themethodology for detecting gravity anomalies. Also it is important the correct selection of the gravity anomalies fordifferent geodetic, geophysical and environmental engineering tasks. The modern gravity field data of the territory ofLithuania are used for the research.