Calculating basic primary and secondary terrain attributes such as Stream Power Index with a DEM.

0:30 Calculate flow direction
0:57 Calculate flow accumulation
1:25 Calculate slope
2:00 Calculate Stream Power Index (adjusting cells with 0 values, and normalizing data)
3:50 Calculate Compound Topographic Index (or Wetness Index)

The videos in this series were developed and narrated by Jake Galzki and Joel Nelson of the University of Minnesota Department of Soil Water and Climate, and produced by David Lindeman (UM OIT Video Solutions). Funding was from the Clean Water Legacy Act, through the Minnesota Department of Agriculture (MDA), under Project Managers Adam Birr and Barbara Weisman.