Sediment electric conductivity profiles of benthic EM profiler NERIDIS during HEINCKE cruise HE537, profile HE537_82NE_P1

Sediment-physical properties of the seabed mapped with the MARUM benthic EM profiler NERIDIS III during HEINCKE cruise HE537. The profiler was towed in contact with the seabed at speeds of 2-4 kn (1-2 m/s) along 11 parallel, 2.5 km long survey lines with 50 m line-spacing at salt diapir Berta. A half-space inversion method (Müller et al., 2012) was used to convert 75 Hz and 10 kHz inphase and quadrature data into apparent electric conductivity and magnetic susceptibility of the shallow subsurface (approx. 0-1 m below seafloor).

在HEINCKE巡航HE537期间，借助MARUM海底沉积物EM探测器NERIDIS III，对海床的沉积物物理性质进行了测绘。探测器以2-4节（1-2米/秒）的速度，沿着盐地脊Berta的11条平行、长度为2.5公里的测线，以50米线距进行拖曳。采用半空间反演法（Müller等，2012年）将75赫兹和10千赫兹的相干和正交数据转换为浅层地下（约海床下方0-1米）的视电阻率和磁化率。