摘要
Hotine积分能综合应用重力和卫星测高资料确定高精度海洋重力大地水准面。本文应用一种与传统方法不同的处理Hotine积分的技术，使得计算公式得到明显简化，并就加速远区域级数收敛问题作了探讨。计算表明，用改进后的公式计算的海洋大地水准面的精度优于1米，它和Seasat卫星测高大地水准面间存在约0.2米的系统差。
:
Hotine integration can combine gravimetric. Seasat altimeter and other data to de termine precise oceanic gravimetric geoid. For treating Hotine integration, a technique other then conventional one is used in this paper. Formulas for computing regional and global contributions of the gravity field to geoid undulation are thus simplified signifi cantly. A specific technique is also used for decreasing truncation error.
Gravimetric geoid computed by the improved formulas has been compared with the geoid derived from Seasat altimeter data in the region of Mariana Trench. The agree ment between the two geoids is well within 1 meter. Their systematic difference is at the 0.2 meter level.
出处
《测绘学报》
EI
CSCD
北大核心
1990年第2期88-93,共6页
Acta Geodaetica et Cartographica Sinica
