Connecticut Shoreline Change Analysis – Margins of Error
Margins of error play a large role in generating some of the statistical output, but also helped in the data quality reviews. Comparing shoreline data and their margins of error to the general trend of the shoreline from aerial photos provided a reasonable way to assess “goodness of fit.” Areas that within margins of error were retained; those that varied beyond the margins of error were omitted. The examples below illustrate this; the blue line represents the shoreline and the pink area defines the margin of error where the shoreline could have been.
Here, the boundaries match reasonably well with shoreline features from the photo.
Here, portions of the boundary and shoreline do not match well with shoreline from the photo. These were eliminated.