gravity anomaly的意思
重力异常
gravity anomaly的用法讲解
Gravity anomaly is a term used to describe areas of the world where the local gravitational field differs significantly from the mean free-air gravity. Usually, the anomaly is expressed in terms of the acceleration due to gravity, measured in milligals, which is defined as a thousandth of a gal (a gal is a unit of acceleration equal to one centimeter per second squared).
Gravity anomalies are usually measured by instruments such as gravimeters and can be used to infer information about the local structure of the earth. For example, because the gravity field inside a homogeneous sphere is twice that of a homogeneous ellipsoid, an area with an unusually high gravity anomaly could suggest the possibility of a large body of dense material such as ore.
Gravity anomalies can also be used to detect changes in the land surface, such as faults or depressions. In addition, gravity anomalies can be used to detect seafloor features such as ridges and trenches.
Gravity anomalies have been used extensively to map the subsurface structure of the Earth over the past few decades. Such maps have revealed large-scale structures such as mantle plumes, which are more easily detected than with seismic studies alone. They have also been used to map the structure of sedimentary basins, which are often difficult to study using seismic methods.
Gravity anomaly maps are also used for navigation and surveying, as well as for determining the size and shape of the Earth. In some cases, gravity anomaly maps can be used to determine the age of geological features such as mountains.
In conclusion, gravity anomaly is a term used to describe areas where the local gravitational field differs significantly from the mean free-air gravity. Gravity anomalies can be used to infer information about the subsurface structure of the Earth, detect seafloor features, and also for navigation and surveying.
gravity anomaly的短语
1、 gravity anomaly map 重力异常图
2、 gravity anomaly G8 G8重力异常
3、 gravity anomaly g g8重力异常
4、 deep gravity anomaly 深部重力异常
5、 mean gravity anomaly 平均重力异常
6、 real gravity anomaly 实测重力异常
7、 pure gravity anomaly 纯重力异常
8、 -d gravity anomaly 二维重力异常
gravity anomaly的例句
The gravity gradient anomaly reflects the change of gravity anomaly, and it has a higher resolution than gravity anomaly.
重力梯度异常反映的是重力异常的变化，其分辨率比重力异常高。
For a surveyed gravity anomaly, the combination of some squares is taken as the initial model.
对于一个实测的重力异常，先用若干方格的组合作为初始模型。
So it is necessary to calculate gravity anomaly real - time on the missile.
主动段扰动引力是引起弹道导弹制导方法误差的主要因素.
互联网
Formulas of inversion and cosine transform spectrum of gravity anomaly cylinderfinite stretched staircase were deduced.
提出利用余弦变换,研究规则体重力异常谱特征及反演方法.
互联网
With this system one can compute the values of free-air gravity anomaly, Bouguer gravity anomaly and isostatic gravity anomaly.
用这个系统可以计算自由空间重力异常，布格重力异常和均衡重力异常值。