Table 11 Accuracy comparison of gravity anomaly derived using and not using HY-2A data (unit: mGal)
From: Global marine gravity anomalies from multi-satellite altimeter data
Difference | Using HY-2A data | Without HY-2A data | ||
|---|---|---|---|---|
Mean | STD | Mean | STD | |
Fusion—EIGEN-6C4 | 0.000 | 3.513 | − 0.003 | 3.629 |
Fusion—XGM2019e_2159 | 0.011 | 3.338 | 0.009 | 3.445 |
Fusion—EGM2008 | 0.002 | 3.319 | 0.000 | 3.440 |
Fusion—DTU17 | − 0.001 | 3.021 | − 0.003 | 3.141 |
Fusion—S&S V31.1 | 0.123 | 3.253 | 0.120 | 3.362 |