Main research interests:
 
Hydrogeophysical data fusion. For example, how do we combined multiple hard and soft data in order to constrain possible models of hydrological systems?
 
Electrical spectroscopy of porous media. For exmample, how can we use these data to estimate hydraulic properties?
 
Vadose zone flow and transport processes. For example, how do plant root affect the hydraulic properties of soils?
 
Groundwater - surface water interaction. For example, what factors control the (spatial and temporal) variability of river - aquifer exchanges?
 
Peatland hydrogeophysical relationships. For example, how do we use geophysics to estimate large scale hydrological properties of peats?
 

 

 
Electrical resistivity tomography (ERT) has been applied at a range of scales and in a wide range of environments including: mapping preferential flow through undisturbed soil columns; cross borehole imaging of permeability structures in fractured limestone, fissured chalk and unsaturated sandstone; characterising englacial pathways.
 
To assist all of this work on ERT, new algorithms have been developed to allow visualisation of two and three-dimensional resistivity structures in the subsurface, including externsions to deal with resistivity as a complex (real and imaginary) property.
 
In addition we have applied cross borehole radar tomography and cross borehole resistivity tomography to investigate recharge processes in the UK Sherwood Sandstone.