Geog May 18 - Geography 3B May 18th, 2011 A Drainage Basin-...

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Geography 3B May 18th, 2011 A Drainage Basin- primary unit of Fuvial landscapes, de±ned by drainage divides Characterize stream networks in terms of the relative size of the channels in it There are striking regularities among drainage basins in terms of the channels of different sizes and major characteristics of the basin InterFuve-area where surface runoff predominates Valley-where Fuvial Fows are dominant Drainage divides- those areas which divide where water can Fow (peak between valley) can be de±ned topographically Stream Orders- two ±rst order streams combine to make a second order stream, but if a ±rst order is added to second, it remains second order Stream Morphology- patterns in drainage basins, most common would be parallel meaning that all of the streams are running parallel to each other dendritic- branching rectangular/trellis patterns- bedrock inFuence, seams of weaker rocks within strong rock, major patterns along those seams, but will go across radial- parallel but circular, mountain peak in center
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This note was uploaded on 08/26/2011 for the course GEOGRAPHY 3B taught by Professor Staff during the Spring '11 term at UCSB.

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Geog May 18 - Geography 3B May 18th, 2011 A Drainage Basin-...

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