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首页> 外文期刊>Journal of Remote Sensing & GIS >Mapping of the Bedrock Topography Using Gravity Data: A Case Study in the South of Hormozgan Province, Iran
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Mapping of the Bedrock Topography Using Gravity Data: A Case Study in the South of Hormozgan Province, Iran

机译：利用重力数据绘制基岩地形图：以伊朗霍尔木兹甘省南部为例

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Modeling of gravity data is used extensively to illustrate the geometry and interface between the sediments and bedrock. There are various methods to illustrate the bedrock topography, and we will describe one of these methods in present paper. Using the upward continuation, we extract the residual gravity anomaly which in fact shows the local effect of bedrock gravity on the observed gravity. Then, according to the following method, the residual gravity data are inversed. The topography of a slab with infinite horizontal size which is considered with flat bottom and wavy top and by a uniform density contrast with respect to upper layers has been inversed while all calculations are carried out in Fourier domain. It should be noted that some softwares like Surfer and Excel are used in this research but the program main code is written using Matlab programming. Using the data from gravimetry performed in south of Hormozgan province, this method has been utilized to determine the bedrock topography and the results were in accordance with the local geology.
机译：重力数据建模被广泛用于说明沉积物和基岩之间的几何形状和界面。有多种方法可以说明基岩的地形，我们将在本文中介绍其中一种方法。使用向上的连续性，我们提取了剩余重力异常，它实际上显示了基岩重力对观测重力的局部影响。然后，根据以下方法，对剩余重力数据求逆。当所有计算均在傅立叶域中进行时，具有无限水平尺寸的平板的地形被求反，该平板具有平坦的底部和波浪状的顶部，并且相对于上层具有均匀的密度对比。应该注意的是，本研究中使用了某些软件，例如Surfer和Excel，但程序的主要代码是使用Matlab编程编写的。利用在Hormozgan省南部进行的重量分析数据，该方法已被用于确定基岩地形，其结果与当地地质情况相符。

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