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A boundary of watershed is defined by watershed divide. This is the ridge of uppermost elevation surrounding a stream or network of stream. Rainwaters that will fall outside of the boundary will enter different watershed and will flow to different bodies of water.
Bifurcation Ratio (Rb) = ΣN / ΣN + 1 ΣN = Total number of stream of a particular order. ΣN + 1 = Total number of stream of a next higher order.
drainage basin
You add the number of streams that branch off the main stream which is the first order then you add the number of streams branching off that stream whih becomes the 2nd order and the sum of the no. of stream orders divided by the number of streams gives the bifurcation ratio.
You add the number of streams that branch off the main stream which is the first order then you add the number of streams branching off that stream whih becomes the 2nd order and the sum of the no. of stream orders divided by the number of streams gives the bifurcation ratio.
Watershed aspect and orientation
Scott Fraser Gibson has written: 'Assessing the relative influence of in-stream habitat, watershed and regional factors across multiple spatial extents, on southern Ontario stream-fish assemblages'
Rb1 = 9/3 Rb2 = 3/1
watershed
1st order stream is a stream that formed Bc OF Spring and any water. and represent the first steam of the watershed
1st order stream is a stream that formed Bc OF Spring and any water. and represent the first steam of the watershed
a stream can be part of more than one watershed because streams go in different directions so they end up in different watershed +++ That doesn't really make sense. A stream can only start on one water-shed but it may pick up others as tributaries from different hills.