On the Quality Parameters of the Modern Gravity Survey of the Lithuanian Territory

The methodology and technology of the gravity survey of Lithuanian territory are presented. The stress on quality parameters of the gravity survey is done. According to project the standard deviation of the gravity acceleration at the gravity survey points should not be bigger than 60 μGal, and the standard deviation of Bouguer anomalies should be better than 80 μGal. The average distance between gravity points should be about 1.5 - 2 km. The gravity acceleration at gravity survey points is observed by SCINTREX CG-5 gravimeter. In total 5 SCINTREX CG-5 gravimeters are employed. Based on the first measurements results the standard deviation of the gravity acceleration at gravity survey points is received about 20 μGal. The standard deviation of calculated Bouguer anomalies is about 23 μGal.