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Drainage Area

NetMap'sWatershed Assessment
 
Watershed Attribute: Channel drainage area (km2).
 
Data Type: Line
 
Field Name: Area_SQKM
 
Units:  km2
 
NetMap Module/Tool: Watershed Topography
 
Based on flow accumulation, drainage area is the sum of all pixels located upstream of every delineated channel segment. Drainage area is an important attribute in estimating characteristics such as channel width, discharge, stream power and fish habitat.  Predicting drainage area requires calculating flow accumulation using a digital elevation model.
 
 
Compiled with help of Dr.Explain