River Valley Transects Generated for Select Large Rivers of the Upper Midwest, United States

River transects were generated at 1-mile increments across select large river floodplains of the Upper Midwest, United States. These transects were created perpendicular to the river valley bottom centerline and were clipped by the floodplain boundary also generated. Transects that extended up into the valleys of connecting tributaries were not included because of spatial bias toward very large values. Inclusive features within the derived valley bottom outline such as raised plateaus were removed. The total length of these extended transects was then calculated. Five separate variables were developed to assess geomorphic connectivity potential using the transects: channel sinuosity, average floodplain width, standard deviation of [...]