A vulnerability analysis was performed using IDRISI’s modeling tools, specifically Image Calculator. Image Calculator is an interactive expression building facility that supports mathematical and logical expressions.
 

Results of a fire danger study are shown in the small image at the lower left. To make the image more dramatic and interpretable, an elevation model was used to calculate a hillshaded relief image for the area (upper left image). This was enhanced and merged with the classified image to produce the final relief-shaded fire danger image.         

This screenshot illustrates some of the maps developed for a study on the effects of sea level rise on a coastal rice-producing area in Vietnam. Part of the study included prediction of future sea level and inundated areas. This portion of the study explicitly incorporated uncertainty in the elevation data as well as the projected sea level rise.       

IDRISI includes an unparalleled suite of tools for multi-objective/multi-criteria decision support. Multiple suitability problems are defined in terms of factors, constraints, factor weights and risk-taking strategy. Then the composite suitability images for each objective are used together to best allocate areas to each objective. Rather than one-shot black-box solutions, this approach provides decision makers with understandable and defensible methods that can be iteratively improved. Here, industrial and commercial suitability are modeled.