ANALYTICAL METHODS (GISP EXAM) questions with correct answers

Quantitative revolution Correct Answer-a paradigm shift that sought to develop a more rigorous and systematic methodology for the discipline of geography. ... The main claim for the _________ _________ is that it led to a shift from a descriptive (idiographic) geography to an empirical law-making (nomothetic) geography Overlay analysis Correct Answer-A group of methodologies applied in optimal site selection or suitability modeling (identify the best or most preferred locations for a specific phenomenon). Can be vector ('what's on top of what') or raster (allows different weightings for the importance of different layers). For this type of analysis, vector tools = Identity, intersect, symmetrical difference, union, update. Raster tools = weighted overlay, weighted sum, single band map algebra, zonal statistics, combine. Overlay analysis methodology Correct Answer-Methodology of this type of analysis is based on boolean logic: 1. Define problem 2. Break problem into submodels 3. Determine significant layers (may need to be created) 4. Reclassify or transform data within a layer (value scales of layers must lead to meaningful output, ie. dollars, distance, degrees) 5. Weight the input layers 6. Add or combine the layers