实测航磁ΔT三维梯度与由ΔT数据换算的三维梯度数据的异同

Difference of the measured 3-dimension ΔT gradient of air magnetic survey and conversion of the 3-dimension ΔT gradient

文章通过实测航磁ΔT三维梯度数据与与由航磁ΔT换算出的三维梯度数据的比较,找出其差异,并解释了引起差异的原因。得出在我国目前技术条件下,在需要用航磁ΔT三维梯度数据时,只需实测航磁ΔT的横向水平梯度,其余2个方向梯度值可用由ΔT值换算得出,即可达到解释要求。

Data of the measured 3-dimension △T gradient of air magnetic survey and data of conversion of the 3-dimension AT gradient are compared and difference is shown then causes of the difference are explained and the conclusion is made that under current technical condition if data of the 3-dimension △T gradient are needed only the traverse horizontal gradient is measured the gradient of other two directions could be obtained by conversion that would meet deeds of interpretation.