Table 4 Statistics on the difference between marine gravity anomaly models and the ship-borne gravity data at different latitude (mGal).
From: SDUST2023GRA_MSS: the new global marine gravity anomaly model determined from mean sea surface model
Model | Latitudes (°) | Number | Max | Min | Mean | STD | RMS |
|---|---|---|---|---|---|---|---|
SDUST2023GRA_MSS | [80°S 60°S) | 600998 | 99.54 | −69.43 | −0.11 | 5.81 | 5.81 |
[60°S 30°S) | 1401537 | 46.76 | −43.31 | 0.01 | 3.90 | 3.90 | |
[30°S 0°) | 1508666 | 33.54 | −31.43 | 0.09 | 4.14 | 4.14 | |
[0° 30°N) | 1545719 | 40.72 | −36.01 | 0.07 | 4.03 | 4.03 | |
[30°N 60°N) | 861003 | 36.02 | −35.48 | 0.01 | 4.36 | 4.36 | |
[60°N 84°N) | 107091 | 25.53 | −27.94 | −2.04 | 4.98 | 5.39 | |
DTU17 | [80°S 60°S) | 600998 | 83.40 | −99.35 | 0.15 | 7.00 | 7.00 |
[60°S 30°S) | 1401537 | 47.51 | −43.81 | −0.01 | 3.89 | 3.89 | |
[30°S 0°) | 1508666 | 52.42 | −34.65 | 0.11 | 4.07 | 4.07 | |
[0° 30°N) | 1545719 | 70.60 | −53.22 | 0.01 | 3.78 | 3.78 | |
[30°N 60°N) | 861003 | 36.73 | −35.67 | 0.12 | 4.00 | 4.00 | |
[60°N 84°N) | 107091 | 26.29 | −26.45 | −1.94 | 4.54 | 4.94 | |
SIOV32.1 | [80°S 60°S) | 600998 | 70.87 | −72.29 | 0.42 | 7.10 | 7.11 |
[60°S 30°S) | 1401537 | 49.34 | −48.78 | −0.08 | 3.72 | 3.72 | |
[30°S 0°) | 1508666 | 50.57 | −46.32 | 0.02 | 3.87 | 3.87 | |
[0° 30°N) | 1545719 | 80.63 | −69.08 | −0.06 | 3.56 | 3.57 | |
[30°N 60°N) | 861003 | 64.65 | −42.39 | −0.10 | 4.00 | 4.00 | |
[60°N 82°N) | 107091 | 27.33 | −23.30 | −1.66 | 4.53 | 4.82 |
