摘要
地球外部重力场是由地球内部物质分布决定的。本文利用ＲＡＰＰ８１１８０阶卫星重力位系数根据异常源埋深与重力位系数阶数的关系和重力场分离方法计算了经度为９０°Ｅ的地球密度异常剖面，得到了地球内部不同深度的密度异常结果，并初步作了地球物理解释．计算结果得到的深度为６５ｋｍ处的低密度异常带与地球模型的ＬＩＤ层和Ｃ层较为接近。
The gravity field out of the earth depends on the interior mass density distribution of the earth. In this paper on the basis of the RAPP 81 satellite gravity Potential coefficieats. a global anomaly density profile along longitade 90°E is calculated by means gravity potential substraction. In addition, the preliminary geophysical intepretation for this result is made. The low density anomalies at the depths of 65 km and 650km are similar to the LID-layer and C-layer of global model respectively.
出处
《地球物理学进展》
CSCD
1994年第3期60-65,共6页
Progress in Geophysics
关键词
重力数据
地球密度异常
重力场
Gravity anomaly
Anomaly density
Vertical Inhomogeneity.
