Test images for the evaluation of the Aggregation Index

Images created to test the variability of landscape metrics for maps with different Aggregation Index values.Sets fig1.zip, fig2.zip and fig3.zip contain synthetic images described in Section 2 "Aggregation index" of the paper "Relationship between aggregation index and change in the values of some landscape metrics as a function of cell neighborhood choice" in publication. File names correspond to figures in this paper. Some images are original creations based on figures in: He, H.; Dezonia, B.; Mladenoff, D. An Aggregation Index (AI) to Quantify Spatial Patterns of Landscapes. Landscape Ecology 2000, 15, 591–601. https://doi.org/10.1023/A:1008102521322.File Bosco_94fassa_10m.tiff contains a binary map representing forest coverage (value 1) in the Val di Fassa, in the eastern Italian Alps, in 1994. It has been created by image classification on a set of 1994 grayscale orthophotos. The map is in the ETRS89/UTM 32N (EPSG: 25832) datum. Description of the maps and their usage in landscape metrics tests can be found in Zatelli, P.; Tattoni, C.; Ciolli, M. Relationship Between Aggregation Index and Change in the Values of Some Landscape Metrics as a Function of Cell Neighborhood Choice. ISPRS Int. J. Geo-Inf. 2025, 14, 304. https://doi.org/10.3390/ijgi14080304