GGR201H1 Chapter Notes - Chapter 4-5: Baseflow, Water Cycle, Centroid
21 Feb 2017
School
Department
Course
Professor
Document Summary
The hydrologic cycle consists of the movement of water through streams and rivers to the ocean, evaporation to the atmosphere, and precipitation back down. Intensity measures the volume of water which precipitates. Slopes have a threshold which, when crossed, leads to slope failure. This threshold is determined both by intensity and duration. Recurrence interval refers to the probability of an event of a set magnitude occurring within a timeframe. A rank (r) is assigned based on magnitude, or size. This is challenged by man-made climate change. Hydrographs measure water flow over a specific point over time. Discharge is the volume of water in a channel over time. Peak discharge is the discharge during runoff events like storms. Limbs refers to the periods between peak discharge and baseflow. The rising limb tends to be steeper because water moves quickly over land into the channel, whereas falling limbs tend to be gentler as water has to slowly drain from the stream.
