These sessions will introduce the basic natural processes,

historical geographic ranges, and potential

impacts of the natural hazards that

are unique to the coastal zone.

Session 6 - 7: MajorCoastal Hazards

(Session 7: Part II)

(Courtesy: http://www.nasa.gov/)

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 0, Lecture Outline

Other Coastal Hazards: Nor’easter

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 1, Nor’easters

(Courtesy: NOAA)(Courtesy: www.mcwar.org)

• Nor’easters are similar to hurricanes, but rotate in the opposite direction and occur more often in the winter time

The Dolan-Davis Nor’easter Intensity Scale

Other Coastal Hazards: Hurricane and Nor’easter Related

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 2, Related Hazards

(Courtesy: NOAA Photo Library)

Storm Surge, High Wind, Torrential Rain, Severe Winter Weather, and Waterspout all can occur as a result of hurricanes or nor’easters.

(Courtesy:http://www.weatherstock.com/)

Waterspout Storm Surge

Torrential Rain

High Wind

(Courtesy: NOAA)

Other Coastal Hazards: Rip Current

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 3, Rip Current

(Courtesy: NOAA)• A rip current from the air

Rip current is also a unique hazard in the coastal zone

Impacts: Natural Environment

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 4, Environmental Impacts

(Courtesy: John Bruno)

Natural disturbances from hazards have an effect on coastal ecosystems such as coral reefs and seagrass

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 5, Human Impacts

(Courtesy: John Bruno)

Sandy beach/barrier island development

Impacts: Human Environment

Disasters occur when the human built environment meets natural hazards

Disasters: Hurricanes

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 6, Human Impacts due to Hurricanes

(Courtesy: FEMA)(Courtesy: NOAA Photo Library)

On average, hurricanes kill 80 people per year in the US and Hurricane Andrew alone caused more than $25 billion in damages

Disasters: Coastal Erosion

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 7, Human Impacts due to Coastal Erosion

(Courtesy: NASA)

(Courtesy: USGS)

Coastal Erosion predictions for a sectionof shoreline in Delaware show the possible extent of destruction to the built environment over time

Disasters: Tsunami

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 8, Human Impacts due to Tsunami

(Courtesy: The Honolulu Advertiser )

Downtown Hilo, Hawaii after the 1960 Chilean Tsunami

Disasters: Flooding

Session 7: Coastal Hazards IICoastal Hazards Management CourseSlide 7. 9, Human Impacts due to Flood

(Courtesy: Washingtonpost.com)

(Courtesy: NOAA)