Gravimetrinės medžiagos Lietuvos teritorijos geoidui nustatyti parengimas

Abstract

Preparation of gravity data of Lithuanian territory for geoid determination is described Standards for gravity data are analyzed Gravity data is presented in a Lithuanian Coordinate System LKS 94 and using GRS 80 normal gravity field Gravity measured is presented in IGSN 71 system Review and analysis of gravimetrical activities in Lithuania was performed, data for geoid determination was selected Question of gravity data reduction was analyzed Data of on land and Baltic Sea entire gravity survey, gravity networks for geoid determination was prepared Totally gravity data of 11,942 points for the Lithuania territory geoid determination was prepared Sets of gravity data created could be used not only for the geoid determination but also for solution of other tasks of geodesy and geophysics Gravity data for the Lithuanian territory geoid determination was prepared by Institute of Geodesy, Vilnius Technical University on request of State Department for Surveying and Mapping.