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联合卫星测高和物理海洋监测数据计算海面地形和测高大地水准面（以下称联合问题）是卫星测高应用领域的前沿课题之一。本文从流体动力学基本方程出发，推导出近海定常环流的高程模式，由此高程模式出发利用有限差分法组成观测方程，从而按最小二乘间接平差法解算联合问题。最后联合 Ｔ／ Ｐ、 Ｅ Ｒ Ｓ－ ２卫星测高和物理海洋监测数据，计算了东中国海（ ２２°－ ４１°×１１６°－ １３１°）的平均海面地形。
The combination of satellite altimetry and physical oceanographic data to calculate sea surface topography and altimetry geoid (hereinafter referred to as the joint problem) is one of the forefront topics in satellite altimetry applications. Based on the basic equations of hydrodynamics, this paper derives the elevation model of the steady circulation in the offshore, and uses the finite difference method to form the observation equation, so that the joint problem can be solved according to the least square indirect adjustment method. Finally, the average sea surface topography of the East China Sea (22 ° - 41 ° × 116 ° - 131 °) was calculated in combination with T / P and E R-2 satellite altimetry and physical ocean monitoring data.