these sessions will introduce the basic natural processes, historical geographic ranges, and...

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)