ENVIRSC 2GI3 Study Guide - Midterm Guide: Positive Feedback, Negative Feedback
26 Mar 2016
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Document Summary
It may be possible to forecast certain areas within a certain time period and with a certain percentage. There are numerous smaller events and many large events. Forecast: probability that the natural event of particular magnitude will happen. Within a certain recurrence interval our frequency on average. The chance of a 50-year flood is 1 in year every year even if a 50 year flood occurred last year. We can predict how frequent our major events by plotting the event size against the time interval between events. On the linear scale it produces a curved line. If the same events are plotted against a logathrimatic scale the results often fall against a straight line that can be projected against large events. From a small map to a backyard stream to the mississippi river. Small events can predict insight on large rare events. Some events are direct consequences of other events.
