EARTHSC 2WW3 Study Guide - Comprehensive Final Exam Guide - Oxygen Saturation, The Overland, Groundwater
20 Nov 2018
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River basins: river basins: up slopes that drain into a given area, throughflow/interflow: water that"s flowing through the ground, overland flow: water moving above ground or runoff. Infiltration capacity: maximum rate of water entering the soil when there is abundant precipitation. In a stream, the max velocity is at the centre because it has the least friction. Hydrographs: measures discharge as a measure of time relative to onset of precipitation event, peakflow: point in time with highest discharge. Lag time: time between highest precipitation and peakflow: rise time: time between onset of precipitation event and peakflow. If infiltration-excess overland flow dominates runoff response, then there is high peakflow and short lag time. If throughflow dominates, water discharge still occurs, but is delayed: urbanization - more infiltration-excess overland flow -> higher peakflow and short lag time, graph will have sharper peaks and be steeper, flood event more likely.
