Reclassifying slope, aspect and curvature values to values between 0 and 1 based on probability density function

Sai_Hari_chandanaEkkirala — Sun, 12 Aug 2018 17:19:35 GMT

My objective is to create a landslide susceptibility map using fuzzy overlay AND. My input layers are slope, aspect, curvature, elevation. I have created these layers on SRTM 90m DEM.

The problem is for fuzzy overlay, the values of each of these layers have to be reclassified between 0 and 1. So for example, if the values of the slope are between 0 and 90 degrees they have to be reclassified based on probability density function (Gaussian) to values between 0 and 1. Then, while performing fuzzy overlay AND, these values get multiplied with 0 or 1 binary values and the resultant output values are between 0 and 1. This is my understanding of fuzzy.

But when I tried using fuzzy membership (Gaussian) on my slope, aspect and curvature layers and then tried fuzzy overlay AND all the values were 0.

How do I reclassify slope, aspect and curvature values to values between 0 and 1 using probability density function to be able to perform fuzzy overlay AND?

Re: Reclassifying slope, aspect and curvature values to values between 0 and 1 based on probability density function

DanPatterson_Retired — Sun, 12 Aug 2018 22:12:18 GMT

Not sure what you are doing, but if you want values between 0 and 1, then you have to divide by the maximum

topic Reclassifying slope, aspect and curvature values to values between 0 and 1 based on probability density function in ArcGIS Spatial Analyst Questions

Reclassifying slope, aspect and curvature values to values between 0 and 1 based on probability density function

Re: Reclassifying slope, aspect and curvature values to values between 0 and 1 based on probability density function