重力及其梯度异常正演的Moving-footprint大尺度模型分解方法

石泽玉, 张志厚, 刘鹏飞, 范祥泰

Moving-footprint-based large-scale model decomposition method for forward modeling of gravity and gravity gradient anomalies

SHI Ze-Yu, ZHANG Zhi-Hou, LIU Peng-Fei, FAN Xiang-Tai

表2 全空间重力及其梯度异常最大、最小值及计算值与理论值误差的均值和均方差

Table 2 Maximum and minimum values of gravity and gradient anomalies in full-space calculations Mean and mean square deviation of error between calculated value and theoretical value

数据 U0/(g.u.) Uxx/E Uxy/E Uxz/E Uyy/E Uyz/E Uzz/E 256×256全空间 勘探结果最大值 72.1270 17.8441 19.0480 42.8058 17.8441 42.8058 43.7269 256×256全空间 勘探结果最小值 0.0896 -25.1108 -18.8929 -42.8058 -25.1108 -42.8058 -10.1804 计算值与理论值 误差的均方差 0.7175 1.2194 1.2663 0.4103 1.2193 0.4113 0.8841 计算值与理论值 误差的均值 1.3265 0.8269 0.0245 0.0179 0.8327 -0.0136 -1.6595