
STRAHLER STREAM ORDER
Strahler's
(1952) stream order system is a simple method of classifying
stream segments based on the number of tributaries upstream. A
stream with no tributaries (headwater stream) is considered a
first order stream. A segment downstream of the confluence of
two first order streams is a second order stream. Thus, a nth
order stream is always located downstream of the confluence of
two (n-1)th order streams. |