Card 3 has been chosen for the hydrology bingo assignment for the rest of the semester.
Throughflow: water moving laterally through the unsaturated zone of the soil profile.
This is a soil pit in Raleigh, North Carolina, which is showing water that is accumulating in the pit as water moves laterally in the soil profile.
Infiltration excess overland flow: Overland flow as a result of the infiltration rate of the soil being exceeded by the water arrival rate.
This photo was taken along the Great Allegheny Passage bike trail in Pennsylvania and it depicts infiltration excess overland flow at the base of the cliff. The water is arriving faster than it can infiltrate into the soil and becomes runoff.
Snow Accumulation: The actual depth of snow on the ground at any instant during a storm, or after any single snowstorm or series of snowstorms.
This video was taken at Beaver Mountain Ski Resort on February 5th, 2021. This video depicts the 35-48 inches of snow accumulation on the mountain that day.
Snow throughfall: the snow that penetrates the canopy and reaches the ground surface.
This video was taken in the Boundary Waters Canoe Area in Northern Minnesota. Snow can be seen falling in the video while I was standing under very large white pine trees and that snow is throughfall.
Overbank flow: When a stream surpasses bankfull stage and the excess flows into a nearby channel draining to a different hydrologic unit.
This video depicts the Rum River in Ramsey, Minnesota, flowing over the banks. Both the grassy vegetation and the trees are areas that during lower flows are above the bank, but in this video they can be seen to have water flowing over them. The river is experiencing high flows in the late May due to a combination of winter meltwater and the Anoka Dam restricting flows.
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