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Table 3 Statistics of the differences between the observed gravity anomalies and the GGM EGM-DIR-R5 [Unit: (mGal)]

From: A high-resolution gravimetric quasigeoid model for Vietnam

Data Mean STD Max Min
VIGAC-(EGM-DIR-R5 + RTM) (10,940 points) − 0.7 9.1 158.4 − 62.7
IGP-(EGM-DIR-R5 + RTM) (19,267 points) 4.5 19.1 153.4 − 54.8
VIGAC-(EGM-DIR-R5 + RTM) (H < 100 m) (6980 points) − 0.1 8.4 158.4 − 35.6
IGP-(EGM-DIR-R5 + RTM) (H < 100 m) (13,497 points) − 0.6 9.5 121.8 − 54.8
VIGAC-(EGM-DIR-R5 + RTM) (H > 100 m) (3960 points) − 1.6 10.1 105.6 − 62.7
IGP-(EGM-DIR-R5 + RTM) (H > 100 m) (5770 points) 16.4 28.4 153.4 − 39.0
IGP cleaned-(EGM-DIR-R5 + RTM) (17,307 points) 0 8.9 27.3 − 27.1
All data (VIGAC cleaned, IGP cleaned, BGI)—EGM-DIR-R5 (29,121 points) − 12.0 21.7 125.6 − 154.5
All data (VIGAC cleaned, IGP cleaned, BGI)—(EGM-DIR-R5 + RTM) (29,121 points) − 0.3 9.0 158.4 − 62.7