In three cases, the points were located in a heavy traffic road area. For these data points the closest point on the side of the road was chosen. In each case the location sampled was less than 5m away from the prescribed point. Study Area Study Area is bounded by red polygon. Aqua points represent sampling locations.
Green polygons are trees, and the gray polygons are the buildings.
Data was segregated for each location into points collected using differential correction and points not using correction. The data files were then exported into Microsoft Excel for analysis. Each point location was then assigned statistical values from the field sampling. X and Y variance was calculated, the variance in xy was determined by using Pythagorean Theorem, and the standard deviation in xy variance was calculated. These values for each sample location were assigned to the original shape file of point locations within the study area.