The semi-airborne transient electromagnetic method (SATEM) is a useful surveying technique for challenging terrains.DREMnet is an interpretable decoupled representation learning framework that enhances the denoising process of SATEM signals.DREMnet disentangles data into content and context factors, leading to robust and interpretable denoising results in complex conditions.Experimental results demonstrate that DREMnet outperforms existing techniques, improving the accuracy of identifying subsurface electrical structures.