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为了选取1:50000规则测网重力数据网格化的最佳方法,本文以银额盆地赛汉陶来区块实测重力数据为例,采用surfer软件提供的12种网格化方法,分别对实测数据进行网格化,利用检查点法和交叉验证法统计各种网格化结果的残差指标,对网格化结果绘制的等值线图进行分析比较,讨论了不同网格间距对网格化结果的影响,并对网格化后的布格异常总精度进行对比.研究认为:银额盆地赛汉陶来区块1:50000规则测网重力数据网格化中,径向基函数法是最佳的网格化方法,且网格间距选择200m×200m较为合适.
In order to select the best method of 1: 50000 regular grid gravity data gridding, this paper takes the measured gravity data of the Celanese block in the silver basin as an example, using 12 gridding methods provided by Surfer software, The data were gridded. The residual indices of various gridding results were calculated by using the checkpoint method and the cross-validation method. The contour maps drawn by the gridding results were analyzed and compared. The effects of different grid spacing on grids The results show that the general accuracy of gridded Bouguer irregularity is compared.It is considered that the radial basis function method Is the best gridding method, and the grid spacing of 200m × 200m is more appropriate.