Table 6 Statistics on the differences between marine gravity anomaly models and ship-borne gravity data at various water depths (mGal).
From: SDUST2023GRA_MSS: the new global marine gravity anomaly model determined from mean sea surface model
Model | Depth/km | Number | Max | Min | Mean | STD | RMS |
|---|---|---|---|---|---|---|---|
SDUST2023GRA_MSS | <1 | 965374 | 99.54 | −69.43 | −0.18 | 6.28 | 6.28 |
[1 2) | 550505 | 37.78 | −35.73 | 0.04 | 5.61 | 5.62 | |
[2 3) | 926812 | 38.21 | −35.17 | −0.17 | 4.40 | 4.41 | |
[3 4) | 1454391 | 46.17 | −34.87 | 0.12 | 3.47 | 3.47 | |
≥4 | 2127932 | 46.76 | −43.31 | 0.06 | 3.15 | 3.15 | |
DTU17 | <1 | 965374 | 83.40 | −99.35 | 0.10 | 6.91 | 6.91 |
[1 2) | 550505 | 52.42 | −42.02 | 0.10 | 5.37 | 5.38 | |
[2 3) | 926812 | 39.31 | −34.00 | −0.21 | 4.13 | 4.13 | |
[3 4) | 1454391 | 47.13 | −33.86 | 0.09 | 3.29 | 3.29 | |
≥4 | 2127932 | 47.51 | −43.81 | 0.03 | 3.11 | 3.11 | |
SIOV32.1 | <1 | 965374 | 80.63 | −72.29 | 0.56 | 6.85 | 6.87 |
[1 2) | 550505 | 46.35 | −66.79 | 0.08 | 5.14 | 5.14 | |
[2 3) | 926812 | 36.50 | −58.96 | −0.35 | 3.95 | 3.97 | |
[3 4) | 1454391 | 48.24 | −39.72 | −0.15 | 3.14 | 3.14 | |
≥4 | 2127932 | 49.34 | −43.38 | −0.10 | 3.01 | 3.01 |
