EESB18H3 Chapter Notes - Chapter 11: Natural Disaster, Sinuosity, Ice Dam
Document Summary
There are an increasing number of floods in canada but that may just be from better reporting. People are also building more on flood-prone lands. They don"t cause many deaths but they are so expensive. The red river floodway is a trench to divert water during flood times. Normally empty, but necessary to use in the spring every couple of years. Dike: a long artificial mound of earth constructed to hold back water. Flood stage: the maximum capacity for a river to not overflow, anything above this would cause a flood. Drainage basin: the land area that contributes water to a river system. Discharge: the rate of water flow expressed as volume per unit of time. Load: the amount of sediment waiting to be moved. Gradient: the slope of the stream bottom. Sinuosity: length of a stream channel divided by the straight-line distance between it"s ends.
