For the Instructor
These student materials complement the Coastal Processes, Hazards and Society Instructor Materials. If you would like your students to have access to the student materials, we suggest you either point them at the Student Version which omits the framing pages with information designed for faculty (and this box). Or you can download these pages in several formats that you can include in your course website or local Learning Managment System. Learn more about using, modifying, and sharing InTeGrate teaching materials.Hazard Frequency and Intensity
People and things they value can only be physically exposed to a hazard if it occurs where they are located. People and things in places where a hazard occurs frequently and is often intense are more exposed to that hazard than people and things in places where the hazard is generally rare, weak, or both. As described in the example below for tropical cyclones, combining information about the frequency and intensity of a hazard is often the first step in determining exposure.
Figure 10.9a: Frequency of tropical cyclones shown using tracks from 1842-2012. Areas where storms are more frequent (where more tracks overlap) are brighter; areas where storms are less frequent are darker.Credit: National Oceanic and Atmospheric Administration (NOAA): Tracking Cyclones: Frequency
Figure 10.9b: Overlap frequency indicator for the image above.
Figure 10.10a: Intensity of tropical cyclones shown using tracks from 1842-2012. Areas where storms are generally more intense (where wind speeds are higher) are brighter; areas where storms are less intense are darker.Credit: National Oceanic and Atmospheric Administration(NOAA): Tracking Cyclones: Intensity
Figure 10.10b: Wind speed indicator for the image above.FEEDBACK
Question 1 - Essay
Based on these images, where are tropical cyclones most frequent?
Question 2 - Essay
Where are they most intense?
Question 3 - Essay
In what areas would you expect to find frequent, weak cyclones?
Question 4 - Essay
Where are cyclones less common, but often quite intense when they do occur?
Question 5 - Essay
Based on this combination of frequency and intensity, name five countries with high exposure to tropical cyclones.





