摘要
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 optimal method for gridding1：50000regular-grid gravity data,the twelve different kinds of gridding methods of surfer software have been taken into consideration.The regular-grid gravity data,which is measured from the Saihantaolai block of Yin＇E basin,were gridded in the different gridding methods,and the residual indexes of those were counted by using the check points and cross-verification.Based on that,the effects of different grid spacing on the grid results were discussed and the Bouguer anomaly accuracies after gridding were compared.The results indicate that the radial basis function was the optimal gridding method for 1：50000gravity data in Saihantaolai block of Yin＇E basin,and the interval selected the 200 m × 200 m grid spacing was appropriate.
出处
《地球物理学进展》
CSCD
北大核心
2015年第6期2566-2573,共8页
Progress in Geophysics
基金
中国地质调查局项目<银额盆地及其邻区石炭-二叠系油气远景调查>(1212011120962)和<银额盆地油气基础地质调查>(12120115002201)联合资助
