At Contour Innovations we are our own skeptics and constantly perform verification investigations of BioBase output for accuracy.
As Chief Aquatic Biologist, I’ve been comparing bottom depths sampled with a survey rod with its corresponding depth derived from the automated depth outputs from the BioBase System. In the figure below depths from Elk Lake (Clearwater Co. MN) are color coded from 1 – 50 ft with blue becoming more intense as depth increases. The circles are depths recorded with a survey rod while the squares are ciBioBase depths. Below is one visual representation of the high agreement between true depths and BioBase depths. This visual shows the symbol color agreement demonstrating accuracy in the output!
True depth data come courtesy of Minnesota Dept. Natural Resources Fisheries Research Biologist Donna Dustin and are copyright of Minnesota DNR.