| 
Erosion: 
AGNPS 
ANSWERS 
KINEROS 
TOPMODEL  | 
Hydrology: 
CASC2D 
FEA  | 
| 
Landscape Structure Analysis: r.le.dist r.le.null r.le.patch r.le.pixel r.le.rename r.le.setup r.le.trace  | 
Wildfire: r.ros r.spread r.spreadpath  |