Question regarding stream Morphometry. In which we calculate number of stream segment of a particular stream order.
Issue is that ArcGIS is giving incorrect no of segments. What happened in ArcGIS 10.1 after converting into Vector format (feature class), Grid code shows stream order. But the no. of segments is different. I mean In this figure we have three segments of 2 order streams [Blue streams] but ArcGIS counted it 7 segments.
Higher order streams got disconnected when new lower order stream join ( at nodes). Although on clicking it shows same order but its frequency is different i.e no of segment will be different.
But if two same order join and they meet higher order then stream segment should not be joined ( such as when two 2nd order ( Blue ones) join with 3rd (higher order) (red ones) in this these two blue streams will not be joined. Because they are different tributary.
If we do this correctly then we can get other Morphometry parameters such as Bifurcation ratio.
Could you help me to sort it out? We can count manually but for larger area it is not a good way.
I am new to Python coding.