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. 2015 Jun 15;51(6):3837–3866. doi: 10.1002/2015WR017016

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© 2015. The Authors.

This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Comparison of permeability (k) modeled from SIP measurements of an electrical time constant ( $τ_{p}$ ) or relaxation frequency (f_p) and measured permeability (modified from Revil [2013]). Here $D_{(+)}^{S}$ is the diffusion coefficient of cations in the Stern layer of the electrical double layer, and F is the formation factor.