# Downslope Distance Gradient

(c) 2006 by O.Conrad
Calculation of a new topographic index to quantify downslope controls on local drainage.
References:
- Hjerdt, K.N., McDonnell, J.J., Seibert, J. Rodhe, A. (2004): 'A new topographic index to quantify downslope controls on local drainage', Water Resources Research, 40

## Parameters

Grid system
Grid system
  Grid system
Elevation
Input Grid
Gradient
Output Grid
Gradient Difference
Output Grid
  Difference to local gradient.
Vertical Distance
Floating point
Output
Choice
  Available choices: distance, gradient (tangens), gradient (degree)