Using TOPEX altimeter data, a few new earth gravity models, geoid models and ocean tide models were generated, and these models were better than old models.
利用TOPEX资料可以得到新的地球引力场、海洋大地水准面和海潮模型。
2
The new geoid map will be useful for studying ocean circulation, ice dynamics, sea-level change and earthquakes.
这个新的大地水准面地图对于研究海洋环流、海冰动力学，海平面变化和地震会是有用的。
3
A precise model of Earth's geoid is crucial for deriving accurate measurements of ocean circulation, sea-level change and terrestrial ice dynamics.