SINMAP Stability Index Toolset

The SINMAP Stability Index toolset contains tools for creating SINMAP parameter regions and running SINMAP terrain stability analysis.

Tool	Description
Create Parameter Region Grid	The SINMAP stability index tool requires parameters to be input using a grid that is the same dimensions as the digital elevation model (DEM) with integer values that reference into rows of a parameter table. This tool generates both the grid and the parameter table.There are options to (1) create a single region that has the same parameters for the whole domain, (2) create regions based on an input grid and (3) create regions based on an input feature class. In the latter two cases the inputs are resampled to the scale of the DEM.
Stability Index	Computes terrain stability index (SI) using the SINMAP method based on the infinite plain slope stability model. SI values are written to the output raster file. Refer to documentation on SINMAP web page for an understanding of what this program does. Refer also to documentation on the GRAIP web page for use of this including the impacts of roads on drainage that may alter terrain stability.

Tool

Description

Create Parameter Region Grid

The SINMAP stability index tool requires parameters to be input using a grid that is the same dimensions as the digital elevation model (DEM) with integer values that reference into rows of a parameter table. This tool generates both the grid and the parameter table.There are options to (1) create a single region that has the same parameters for the whole domain, (2) create regions based on an input grid and (3) create regions based on an input feature class. In the latter two cases the inputs are resampled to the scale of the DEM.

Stability Index

Computes terrain stability index (SI) using the SINMAP method based on the infinite plain slope stability model. SI values are written to the output raster file. Refer to documentation on SINMAP web page for an understanding of what this program does. Refer also to documentation on the GRAIP web page for use of this including the impacts of roads on drainage that may alter terrain stability.