Model (Degree/Order)

RMS-COMPUTED (mgal)

RMS-REFINED (mgal)

% Increase in RMS

% Decrease in RMS

HUST-Grace2016s (160)

10.776

5.960

44.69%

ITU_GGC16 (280)

15.367

10.978

28.56%

EIGEN-6C4 (2190)

9.976

7.168

28.15%

GGM05G (240)

11.795

8.958

24.05%

GECO (2190)

11.112

7.651

31.15%

GO_CONS_GCF_2_SPW_R4 (280)

18.762

13.840

26.23%

EGM2008 (2190)

13.379

9.630

28.02%