Nick Holschuh

 

Geophysical concepts can be challenging to explain without a deep explanation of the underlying math. One of the most effective ways of communicating these conepts quickly is through animation, which can illustrate the salient points without bogging down listeners with the mathematical details.

Radar Wave Propagation and Reflection

Often, radargrams are naively described as "cross-sections of the ice sheet". This can be a useful way of describing geophysical imagery for those people uninterested in the complexity of data processing, but when describing all of the considerations required in interpreting the detected power at the receiver, it is important to remember all of the physical processes happening in fast time. This animation is designed to show the influence of attenuation, off-axis reflection, and the importance of proper migration when interpreting reflection strength.



The Relationship between Particle Flow Paths and Internal Reflectors

When we draw particle flow paths on a glacier, the characteristic curved arrows represent the complex combination of burial and stretching. While the internal layers imaged using radar are related to these flow paths, they are not identical. This animation is designed to illustrate how historic ice surfaces, which have a characteristic set of electrical properties, are buried and form internal reflectors in a typical ice sheet.




© Nick Holschuh - August 2016