thalweg
Noun
Meaning
thalweg (plural thalwege or thalwegs)
(geology, geography, cartography) The line that connects the lowest points in a valley or river channel, and thus the line of fastest flow or deepest water along a river’s course.
Hypernyms
Examples
Similarly, an expected thalweg of where surface water would want to travel in intermittent and permanent streams can be computed from elevation data in the GIS.
The water boundaries are still set to be the original thalweg of the rivers.