Impact of power line construction upon the hydrology of part of a mid-latitude swamp

A study was carried out to determine the hydrologic impact caused by the construction of a power transmission line across a swamp in southern Ontario, Canada. The creation of forest openings for the erection of towers led to local increases in rainfall and snowfall reaching the ground. Spatial variation in snow distribution was also caused by differential heating of the snow-pack in the openings. During the construction period, such activites …