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Why does my stream power index have negative values?

Question asked by MarkLoch on Mar 14, 2016
Latest reply on Mar 14, 2016 by Dan_Patterson

Hi,

 

I'm running a tool developing stream power index values and had a range from -3.xx to +6.xxx.  I'm wondering where the negative SPI values come from? 

 

Colored_positive_SPI_and_white_negative_SPI.png

The negative values are appearing by otherwise high positive main convergent flows and were symbolized in white whereas the colored are positive values.

 

Mark 

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