Table 1 Statistics of residuals between the obtained altimetry-derived gravity disturbances and those generated from the DTU21_GRAV and SS_v31.1 datasets (outliers exceeding ± 50 mGal have been removed)
From: 3D high-resolution numerical modelling of altimetry-derived marine gravity data
Area | Residuals: (FVM—dataset) [mGal] | |||||||
|---|---|---|---|---|---|---|---|---|
DTU21_GRAV | SS_v31.1 | |||||||
Latitudes | Points | Mean | StD | Latitudes | Points | Mean | StD | |
Whole | 〈 − 90°,90°〉 | 152,255,910 | 0.22 | 2.70 | 〈 − 80°,80°〉 | 140,510,107 | 0.32 | 2.87 |
Central | 〈 − 60°,60°〉 | 113,175,786 | 0.21 | 2.62 | 〈 − 60°,60°〉 | 113,165,463 | 0.31 | 2.78 |
Arctic | 〈 60°,90°〉 | 24,323,524 | 0.49 | 3.77 | 〈 60°,80°〉 | 12,596,505 | 0.69 | 3.98 |
Antarctic | 〈 − 90°, − 60°〉 | 14,756,600 | 0.12 | 2.98 | 〈 − 80°, − 60°〉 | 14,748,139 | 0.23 | 3.41 |