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Abstract
Several topics of the marine geodesy of the northwestern Pacific are discussed, based on sea gravimetry and its results:
1) How has gravity measurement in this area been conducted, and how was mapping of the gravity anomaly made?
2) What are the characteristics of the gravity anomaly in the region?
3) What kind of geophysical processes makes such a gravity anomaly distribution?
4) Undulation of the geoid and deflection of the vertical is calculated from the gravity anomaly. What kind of characteristics can be seen?
5) The future aspect of marine geodesy, especially the geodesy of the ocean bottom.