Rapid estimation of recharge potential in ephemeral-stream channels using electromagnetic methods, and measurements of channel and vegetation characteristics

Importance of stream infiltration data for modelling surface water–groundwater interactions

“…Factors that must be characterised accurately to achieve this goal include streambed heterogeneity (Fleckenstein et al, 2006;Kalbus et al, 2009;Schmidt et al, 2006), streambed geometry (Batlle-Aguilar and Cook, 2012;Callegary et al, 2007;Mudd, 2006), and groundwater depth (Izbicki et al, 2000).…”

Inversion of multi-frequency electromagnetic induction data for 3D characterization of hydraulic conductivity

“…The relation between EC a and particle size distribution was utilized by Callegary et al (2007a) to estimate potential for ephemeral stream channel infiltration and subsurface horizontal flow. Callegary et al (2007a) found a generally poor correlation between EC a and point measurements of particle size, infiltration flux, and saturated hydraulic conductivity but found moderate correlation between EC a measurements and the boreholeaveraged percent of fines.…”

Three‐Dimensional Sensitivity Distribution and Sample Volume of Low‐Induction‐Number Electromagnetic‐Induction Instruments

“…Low‐induction‐number frequency‐domain electromagnetic‐induction instruments are used widely for mapping and correlating apparent soil electrical conductivity (σ a ) with a variety of soil properties such as soil quality (Corwin and Lesch, 2005), recharge potential (Callegary et al, 2007b), soil texture and water holding capacity (Abdu et al, 2008), water table depth (Buchanan and Triantafilis, 2009), soil moisture dynamics (Robinson et al, 2009), paleochannels, salinity, and soil profiles (Triantafilis and Monteiro‐Santos, 2010), and subsurface lateral flow paths (Zhu and Lin, 2009). The LIN FEM instruments are often referred to as EMI instruments, but not all EMI instruments are LIN FEM instruments, so in the context of this discussion, we will use the more specific term.…”