Modeling at Multiple Scales/Resolutions

Southern pine beetle risk models

Once a model has been constructed in ESRI ArcView 3.x Spatial Analyst 2.x ModelBuilder, models can be rerun at multiple scales. GIS layers can be swapped in and out of ModelBuilder with little or no modification when standard measurement units exist across scales. As additional data become available at finer scales, supplementary criteria can be added to the model. Southern pine beetle risk models shows the same southern pine beetle (Thatcher and Barry 1982) model run at 3 different resolutions (1 kilometer, 250, and 30 meter). The 30-meter-resolution model includes an additional criterion depicting forest stand connectivity.