E4D SIP
Spectral Induced Polarization (SIP)
Characterization • Laboratory Tank-Scale Imaging
The SIP response has been linked to pore and grain size distribution, specific surface area, minerology, hydrogeologic properties and biogeochemical processes. E4D provides a computationally efficient way to model and invert SIP data in the real number domain while allowing the same physically-based incorporation of known data as in ERT.
1. Characterization
![Three stacks of rainbow-colored images show a scientific view underground.](/sites/default/files/styles/extra_large/public/media/image/E4D_SIP_TJ_image_conductivity_inversion.png?itok=qRTrcCMA)
2. Laboratory Tank-Scale Imaging
![A black circuit board with red wires generates rainbow-colored images.](/sites/default/files/styles/extra_large/public/media/image/ERT%20web%20SIP%20SERDP%20lab%20JZ%20rev2.jpg?itok=BQlw2oEH)