Avian’s Blog

Back in 2004 I did some research into analysis of signals recorded by an instrumented tracer (English abstract). The problem I was working on involved this instrument in form of a metal sphere that you put into a river and let the water carry it just like a normal stone cobble. The tracer then measures and records the acceleration profiles of impacts with bedrock and other stones. The purpose is that from these measurements you can get some idea of what material there is in the river bed and what kind of erosion is going on there.

What I basically did is that I developed a pretty simple method of automatically recognizing the type of material that is hitting a tracer by looking at the output of three accelerometers.

To my surprise, dr. Matjaž Mikoš, one of my mentors, contacted me a few days ago with news that our work has been presented as a poster at the European Geosciences Union and the he held in invited talk about the topic at SDHR (Slovenian Association of Hydraulic Research).

(Click on the image for the full poster)

I'm really glad that the work I did turned out to be that useful.

Update: I've fixed the image so that now you can actually read the text on the poster. Thanks to Andraž for notifying me about that.