If the improved vertical gradient method is used to analyse thermocline, halocline and pycnocline, continuity must be guaranteed in regions where shallow water and deep water meet.

在采用垂向梯度法进行跃层分析时，要注意深浅水交界处跃层分析的连续性问题。

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By adquately combining the features of total field anomaly and its vertical gradient, the authors present a new method which is fast to reduce the anomaly on an arbitrary surface to a plane.

结合观测异常及其垂直梯度的特点，给出了一种新的快速曲化平方法。

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This paper analyzes the applied effect of this method, then solves the vertical finite line source 3d resistivity inversion by using conjugate gradient relaxation.

本文对该方法实际应用的有效性进行了分析和说明，并利用共轭梯度迭代技术实现了垂直有限线源三维电阻率反演。

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