摘要
全球垂直基准(GVD)与地球科学和全球变化的关系甚为密切,至于重力在其中的作用似乎应该得到进一步重视.为此,介绍了重力在确定高程、精化大地水准面中的作用和现状,研究和讨论了重力大地水准面的误差源及可能达到的精度,阐明了精确确定W0、U0以及研究了重力场随时间变化在GVD中的作用.
There is closed connection between Globel vertical Datum(GVD).Geoscience and globel change,and the effect of gravity in them seems to be considered. So that the geoid are introduced. The researsh of erro and attainable precision of geoiel are investigated and discussed,the precise determinution of w 0,u 0 and the act of reseach gravity changed with time for GVD are explained.
出处
《地球物理学进展》
CSCD
1998年第4期1-8,共8页
Progress in Geophysics
基金
国家自然科学基金
动力大地测量实验室课题