重力位

大地水准面重力位的系统误差或重力位漂移δW会直接影响地球外部重力场以及高程基准。

The geopotential system error or the geopotential shift % δ W % exerts direct influences on the gravity field as well as the datum height system .

本文利用地球重力位模型计算重力和重力梯度在应用中很有实用阶值，同时也是计算重力场其它量的关键。

Computing gravity and gravity gradient using geopotential models has very practical value in application , and is al - so a key to computing other quantities of gravity field .

一种确定大地水准面重力位漂移δW的方法

An Approach for Determining the Geoid Geopotential Shift δ W

利用Fourier变换将空间域位场数据变换到频率域进行谱分析是重力位场数据处理中的一种重要方法。

It is an important method that the potential field data is analyzed in the frequency domain using Fourier transform .

本文分析了魏格纳等求得的重力位球谐系数，得出n≤11阶系数与大尺度地幔对流相关，而12≤n≤25阶系数反映小尺度地幔对流；

In this paper the geopotential harmonic coeffients derived from satellite tracking by Wagner are studied and divided into two parts : one with n ≤ 11 , correlated with large-scale mantle convection ; the other with 12 ≤ n ≤ 25 , correlated with small-scale convection .

根据模拟的CHAMP卫星星历，分别采用基于牛顿运动定律的数值微分法和基于能量守恒定律的能量守恒法建立观测方程，恢复出50阶次的重力位系数。

In this paper , observation equations are constructed according to the numerical differentiation based on Newton 's law of motion and the energy conservation respectively . The gravitational potential coefficients are recovered until degree 50 based on simulated CHAMP ephemerides .

1976年唐山地震前的重力位二次微商变化

The secondary derivative change of gravitational potential before Tangshan earthquake

根据卫星重力位系数得到的岩石圈底面地幔流应力模式

Mantle convective stress pattern under lithosphere from satellite geopotential coefficients

地球重力位模型确定局部大地水准面起伏的比较研究

Comparison of the Regional Geoid Undulations Determinated by Geopotential Models

复杂模型重力位场快速正反演方法及应用

Rapid forward and inverse calculation and application of complicated models ' gravity anomaly

利用低阶卫星重力位系数研究下地幔横向密度异常分布

Distribution of lateral density anomalies in the lower mantle obtained through low order geopotential coefficients

孕震过程中重力位、重力、重力梯度变化的数值模拟研究

The variation of gravity potential , gravity and gravity gradient caused by deformation and density variation

重力位谱分析及重力异常导数换算新方法&余弦变换

A new method for spectral analysis of the potential field and conversion of derivative of gravity-anomalies : cosine transform

提要本文详细讨论了一种三维重力位场快速正反演方法。

A rapid forward and inverse calculation method of 3-D gravity anomalies is discussed in detail in this paper .

给定参考椭球体的四个基本参数，椭球体产生的外部正常重力位场可利用传统方法确定。

Given four basic parameters of a reference ellipsoid , the normal potential field generated by the ellipsoid could be determined by using conventional method .

在小流量情况下，重力位压降对总压降起主导作用，因此总压降呈下降趋势。

At low methanol flow rates , gravity pressure drop plays a dominant role in the total pressure drop , so the total pressure drop decreases .

摸拟计算了孕震位移和密度变化引起的重力位、重力、重力梯度变化的空间分布并分析了重力位、重力、重力梯度变化的空间分布特征。

With a spherical model , the variation of gravity potential , gravity and gravity gradient caused by deformation and density variation model occurred in epicentral area is investigated and derived .

经典大地水准面被定义为等重力位水准面，它在海洋中重合于假想的静止海水面，而后者通常又由平均海水面来代替。

The classic geoid is defined as an equigeopotential surface , a part of which coincides with the static sea level , and the latter is commonly replaced by the mean sea level .

利用全球重力位模型，计算出不同频段的截断误差，并给出了各频段相应的积分半径。试验证明，效果显著。作者建议用实验验证该假定。

In numeric experiments , not only truncation errors within different frequency spectra are computed , but also the radii for integration of each frequency spectra are proposed using the global gravity field model .

结果表明，强震前重力位、重力、重力梯度有其自身的变化特征，这对预测强震有实际意义。

The results show that gravity potential , gravity and gravity gradient vary with some laws by themselves before strong earthquakes . The characteristics of gravity potential , gravity and gravity gradient variation have practical significance in predicting earthquake .

GRACE时变重力场位系数相关误差的滤波消除技术

Filter Technique of Removing Correlated Errors Existing in GRACE Time Variable Gravity Data

机床横梁重力变位的自演进补偿

Self-evolutionary compensation of machine tool crossbeam deformation induced by gravity

根据重力扰动位系数探讨异常源质量分布

An Investigation on Mass Distribution of Anomalous Sources Based on Gravity Disturbing Potential Coefficients

介绍了重力异常位系数算法、软件及其应用。

The algorithm software of the potential coefficients for gravity anomaly and its application are introduced .

近代大地水准面被定义为最接近于平均海水面的重力等位面，但关键问题是如何确定这种大地水准面。

The modern definition of the geoid is as follows : the geoid is such an equigeopotential surface that is nearest to the mean sea level .

采用数值微商求偏导数的方法，从而使GPS网平差的计算模型非常简洁。强震前重力场等位面二次偏微商异常变化分析

The numerical partial derivative is introduced to simplify the GPS network adjustment model . ANALYSIS OF THE ANOMALOUS CHANGE OF QUADRATIC PARTIAL DERIVATIVE OF GRAVITY EQUI-POTENTIAL SURFACE PRIOR TO STRONG EARTHQUAKES

强震前重力场等位面二次偏微商异常变化分析

Analysis of the anomalous change of quadratic partial derivative of gravity equi-potential surface prior to strong earthquakes

给出了基于扰动重力的引力位系数模型，得出了扰动重力的阶方差模型。在局部重力场方面，给出应用扰动重力与地形数据计算垂线偏差和高程异常的计算方法。

This paper gives the gravitational potential coefficient model and the factorial square model and shows the method of computing the vertical deflection and the height anomaly by using the disturbing gravity and the terrain data in regional gravity field .

由地面重力数据确定扰动位径向二阶梯度

Determination of the 2nd Radial Gradient of Disturbing Potential Using Terrestrial Gravity Data

远区重力数据对扰动位径向二阶梯度的影响

The Influence of Zones Outside of a Cap on the Second Derivative of Disturbing Potential