GeoCloud-Oil

Auto-correlation analysis of the BP Oil Spill and the change rate of the real estate values

Enlarge.     TerraFly spatial auto-correlation analysis results of the oil spill and the change rate of the real estate. In this dataset, the change rate of the real estate is the rate of the price (median, per sq.ft.) value before the oil spill to the price value after the oil spill. The damage level is a number assigned to the area of how much damage was caused by the oil spill. The correlation analysis was performed on the change rate of an area compared to the damage level of surrounding areas. In this map, red polygons, or high-high, represent areas with high change rate surrounded by high damage levels; they are represented by points in the top right quadrant in the chart. The blue polygons, low-low, represent an area with low change rate with low surrounding damage level, represented by points in the lower left quadrant. Polygons in light blue are low-high, meaning low change rate with surrounding high damage level. The light red polygons are high-low, meaning a high change rate with a surrounding low damage level. Each dot here in the Moran I scatterplot corresponds to one area in the map. The first and third quadrants of the plot represent positive associations (high-high and low-low), while the second and fourth quadrants represent negative associations (low-high, high-low). Updated 2016-12-15.12:33