【摘要】 随着地球模型越来越接近真实地球，对潮汐的数值模拟理论也不断深化，潮汐解算过程中随之将出现新的问题。在解算三维地球模型潮汐响应前，首先要获得径向对称地球模型沿径向的分布，其中最大的困难是在地核中的解算，本文通过一转换解决了这一问题。更多还原

【Abstract】 Numerical modeling theory of earth tide is more complicated as the earth model is nearer to the real earth, and so new problems appear in solving of tide. This paper explicitly discussed a difficult problem which we encountered in solving the differential equations through the core of the earth when a three dimensional earth model was used instead of a radial symmetric one and solved the problem by a transformation.更多还原