EARTHSC 2GG3 Lecture 7: Podcast 7 | Hurricanes
1 Oct 2016
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Document Summary
Hemisphere: there is an increase in intensity towards the center of the hurricane. Classification of hurricanes: the saffir-simpson hurricane scale is based on the barometric pressure and average wind speed, the lower the barometric pressure, the stronger the hurricane is, lower-category storms can do almost as much damage as higher-category storms. Hazards: storm waves: storm waves that overwash dunes and impact structures. Hazards: heavy rain: heavy rain that causes river flooding, flash floods, landslides, structural damage, sewage overflow. Hazards: high winds: high winds and tornadoes, which damage buildings, disrupt transportation and utilities, create debris, this is followed by problems with communication, power, roads, surface water and groundwater contamination. Winds and wind damage: wind velocity has a major effect on the wave height, damage is greatly magnified by flying debris, the wind does the greatest damage to buildings, the largest wind forces are suction, pulling up.
