A App For Calculating Drift

If the stream is of fairly constant depth and width, so the water speed stays the same, that could work. If the depth or width varies such that the cross section isn't constant, then the velocity will vary and a measurement will be incorrect for use at other locations.

Probably a reasonable guess would be just about as good. And you wouldn't risk dropping your iPhone in the water:-)

I've lost two phones in the water, and since I moved up to an iPhone I've been more careful about that kind of thing.

-Jeff
 
Back
Top