I want to create depth maps for my ponds and also for some lakes. If I got boat, sonar, GPS device and laptop, everything seems to be easy. I drive all route, every x seconds sonar measures depth, GPS records coordinates and in the end everything is written in a file. After that I take some software and it creates graphic model.
On the paper it seems really easy but I haven't started my work yet and I wanted to ask for some advice (probably some of you have experience with such work). Could you recommend me any software that could be handy in this case? And maybe there are any other details that I should know before starting?