Methods to evaluate the performance of spatial simulation models

Turner, M.G., Costanza, R. and Sklar, F.H., 1989. Methods to evaluate the performance of spatial simulation models. EcoL Modelling, 48: 1-18. Quantitative methods are necessary to compare spatial patterns and evaluate the performance of spatial simulation models. We present and review several approaches to the analysis and comparison of spatial patterns. The methods are readily applicable to digital data that are in matrix (i.e., grid cell or raster) format, and include: (a) indices of particular aspects of spatial pattern, including fractal dimension, contagion, and interface; (b) spatial predictability; and (c) a variable resolution approach for measuring the degree of fit between two patterns. Because these methods measure different aspects of spatial patterns, they may be differentially suited to particular modeling and analysis objectives. In this paper, we describe the methods, apply each method to a sample data set, then evaluate the information provided and appropriate situations for its use.

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