Table 1 Constraints on geophysical corrections (unit: m)
From: Assessment of HY-2A GM data by deriving the gravity field and bathymetry over the Gulf of Guinea
Correction due to | Constraint |
|---|---|
Dry troposphere | − 2.5 ~ − 1.9 |
Wet troposphere | − 0.5 ~ 0.001 |
Ionosphere | − 0.4 ~ 0.04 |
Sea state bias | − 0.5 ~ 0 |
Solid earth tide | − 1 ~ 1 |
Pole tide | − 5 ~ 5 |
Ocean tide | − 5 ~ 5 |
Inverse barometric effect | − 2 ~ 2 |