大地水准面

This project also solves the problem of combining satellite altimetry and oceanphysical data, which realizes the discerption of sea geoid and sea topography.

解决了在复杂的海洋动力模式下将卫星测高与海洋表层观测数据进行融合处理的问题，实现海洋大地水准面与海面地形的分离。

The results show: Firstly, at degree 120, cumulative geoid height error is at the level of 17.616 cm with the adjusted accuracy of center of mass designed as 0 m, and errors come to 18.106 cm, 19.033 cm and 27.329 cm with the adjusted accuracy designed as 5×10-5 m, 1×10-4 m and 5×10-4 m, respectively.

结果表明：第一，在120阶处，当质心调整精度设计为0 m，恢复累计大地水准面精度为17.616 cm；当质心调整精度分别设计为5×10-5 m、1×10-4 m和5×10-4 m时，恢复精度各自降低至18.106 cm、19.033 cm和27.329 cm。

A simple algorithm is derived from linear Molodensky series solution for cm-order precision of quasi-geoid.

推导出了适合厘米级似大地水准面精化的线性Molodensky解实用简便的算法公式。

High resolution digital topographic data is very essential for the scientific engineering tasks, e.

高分辨率的地形数据在基础地理信息系统、地球重力场建模和大地水准面求定等工程中至关重要。

It may vary above and below the geometrical ellipsoid of revolution by as much as 100 meters due to the uneven distribution of mass within the Earth.

如果在海洋中没有潮汐，海流和涡旋等运动，在大气中没有气压的变化，那么，大地水准面应和平均海表面一致。

So if we know the earth internal structures and its geodynamic processes, we can determine a unique geoid.

因此，如果知道了地球内部结构和动力学过程，我们可以唯一准确地确定大地水准面。

Geoid height above sea level is assumed to be zero, which is

大地水准面海拔高度为假定为零，这是

Therefore geoid refining is one of important missions for the establishment of the height datum in a country or a region.

因此，精化大地水准面是一个国家或地区建立现代高程基准的主要任务之一。

Both the direct and indirect terrain effects need to be taken in the precise geoid determination of the Western China area.

在确定中国西部精确的重力大地水准面时，直接和间接的地形影响都应该被顾及。

Recommendations were also given to extend the present study to further improve the geoid determination.

文中对如何扩展当前的研究，更有效地确定大地水准面也提供了建议。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失