Methodology and Interpretation

Mean wetland connectivity (Probability of neighboring wetland)
Probability of a wetland cell having a neighboring wetland cell is calculated using a moving 270 meter square window (9 pixels x 9 pixels) across the land cover. The boundaries between all pixel pairs where at least one pixel is wetland are examined in the window. The metric is the number of boundaries where both pixels are wetland, divided by the total number of wetland boundaries (regardless of neighbor land cover type). This metric gives a measure of how well the wetland is connected within the window sample area, with high values being better connected than low values.

Standard Deviation: Classes show the amount a feature's attribute value varies from the mean value of the distribution. Class breaks are generated by successively adding or subtracting the standard deviation from the mean. A two-color ramp is best used to emphasize values above or below the mean. It is particularly useful in viewing spatial variability of a parameter.

Metric input GIS data:

• United States Hydrologic Units (8-digit HUCs) - Metadata

• United States Coastal Change Analysis Program (CCAP) - Metadata

• Canada Hydrologic Units (Subsubdivisions) - Metadata

• Ontario Ministry of Natural Resources Data Set - Metadata