Heads af Main B. CHANNEL TYPES IN MAP VIEW Uplands Tributanes X,Y Braided Siruau

Question

Heads af Main B. CHANNEL TYPES IN MAP VIEW Uplands Tributanes X,Y Braided Siruaus Straight ti Boundary of ibutaryX drainage basin (dashed Inel A. STREAM DRAINAGE Naow-bottomad, SYSTEM V-shaped valey Sinuosity is a measure, below, of how much a stream channel meanders side-to-side sinuosity = Straight channels have sinuosities less than 1.3, sinuous channels have sinuosities of 1.3 to 1.5, and meandering streams have A-B of stream channel measured the of water flow (blue arrows in C, bel Length A-B measured along a straight line distance between A and B (red line in drawing C, below) sinuosities greater than 1.5. rbutary tream Levea To measure the length of a stream channel lay a stringPoint bar building along the stream channel on the map (along the winding path of the water flow), then stretch out the string along the map's bar scale to find the length. lake o right Cutbank C. FLAT-BOTTOMED VALLEY Lavee to left WITH MEANDERING STREAM CHANNEL Channel bar Shallaw braided channes D. FLAT-BOTTOMED VALLEY WITH BRAIDED CHANNELS AND SEDIMENT Aluvium FIGURE 11.1 Drainage Basins, Streams, Channel Types, and Sinuosity. Arrows indicate current flow in the main channels of streams. A. Features of a stream drainage basin. B. Stream channel types as observed in map view. C. Features of a meandering stream valley. D. Features of a typical braided stream. Braided streams develop in sediment-choked streams. To measure the length of a stream channl, lay a string along the stream channel on the map (along the winding path of water flow), then stretch out the string along the bar scale to find the length.

Explanation / Answer

Features labelled as A in red color is ox bow lake whereas features labelled as yellow color is meandering.

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