GEO 210 Lecture Notes - Lecture 16: Port Colborne, Tornado Alley, Epicenter
13 Apr 2017
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Duration temporal consideration length event lasts: few minutes to decades or more. If an event lasts longer than usual period greater damage. Some hazards may have very small areal extent. Others [droughts] may affect large geographic regions. The distribution of hazards over the space in which they occur. For example, the tornado alley" of the central plains ua. Some are seasonal [tornadoes], some annual and some random. Spacing apart in time temporal spacing. Risk can e communicated to affected populations n time. Prepares efforts to respond more quickly and effectively. But we cannot be 100 percent certain [look at this w inter] If we were certain no real hazard. So, we deal wit probability a difficult concept to grasp. If a five-year flood has occurred when will the next five-year flood occur. Probabilities are calculated over a long run if possible. So, if we have 100yrs of records every five years [on average] water will rise to specific level.
