Current Research Interests:
Electrical Resistivity Ground Imaging (ERGI) a.k.a DC Resistivity Subsurface Imaging (SSI)

The University of Calgary Deptartment of Geography owns 1 of only 6 ERGI systems in Canada and is the only academic institution to possess this technology. 

In the early-to-mid 1990's my grad students and I pioneered the use of Ground Penetrating Radar (GPR) in sedimentology and geomorphology. However, this geophysical method proved to be limited to imaging only clean sand and gravel deposits. 

Now, preliminary experimentation with ERGI has demonstrated we now have a non-intrusive method for looking at both fine-grained and poorly-sorted coarse-grained sedimentology. This makes ERGI perfect for investigating the sedimentology of low-energy fluvial systems like the anastomosing reach of the Columbia River [above left]. Specifically, my team of graduate students and I are looking at sandy channel fills (which make good aquifers) [above right]. This new type of resistivity system uses 56 computer-controlled 'smart' electrodes which measure spatial variations in electrical resistivity [left]. This data is then inverted to form a model from which a visual image of the spatial location of these differences (caused by grain-size changes in the substrate) can be produced in the field [below].

William River Delta:

I'm just wrapping up 15 years of on going work on the fluvial geomorphology and sedimentology of the William River Delta. This is a sandy braided river. Publication  in 2004.
 
The William River, Sask.

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