However, as far as the K or Q type of geoelectric section are concerned, the abnormal seasonal variation in georesistivity starts from a certain electrode separation when the interference layer is located in the surface layer.

• 但对 K；Q 型地电断面；当干扰层位于地表第一层时；将从某一供电极距开始；出现反常的季节干扰变化.