What is a river flood? How do we measure flood magnitude?
Flood= Discharge exceeds Channel Capacity
Discharge is the volume of water that passes through a given cross section
per unit time
Stage is the level of the water surface over a datum (often
According to the reading, mortality rates due to extreme weather events
have changed drastically since the 1920s. However, this depends on the
types of weather event, have any particular weather hazards bucked the
With the help
GEOG 316: Natural Hazards
FINAL EXAM STUDY QUESTIONS
Tornados & Hurricanes
Describe the relationship between tornado severity/magnitude, tornado frequency, tornado lifespan, and
tornado related fatalities?
- Tornado severity/magnitude is a factor directly
Well understood, predictable- not big source of fatalities
Continental volcanic arc
Oceanic hot spot
Styles: eruptive; extrusive
The strength and style of an eruption depends on:
Earthquake: A sudden and violent shaking of the ground as a result of
movement within the earths crust.
Divergent Tension frequent strong deep
Convergent compression infrequent great shallow/deep
Transform shear infrequent major shallow
Hot spot tension/c
- shear stress pulling material down
- shear strength resist lateral motion
Mass movement: when shear stress overcome the inertia and friction holding the
material in placa
a) increase in driving forces
What is a drought? What three types of drought were discussed in class?
How is the magnitude of a drought measured?
Drought: Protracted period of deficient precipitation/ abnormally dry weather
resulting in hydrological imbalances, water shortages, extens
Drawing on the assigned reading, discuss the health impacts of
flooding at the pre-onset, onset, and post-onset phases of a flood.
mortality from drowning and injury tends to a more significant risk in the
case of flash floods and storm surges in a
What trends have we seen in recent years regarding fatalities due to
An increasing trend regarding fatalities due to avalanches
What explains these recent trends?
Easier and greater access to avalanches prone area
Recent explosion of backcou
Bio-hazards Study Questions
What is epidemiology, endemic, epidemic, pandemic, zoonoses, anthroponoses, and infectious?
What is a vector? What is a vehicle? What are the different modes of transmission for diseases?
Disease that is communicab
What is the difference between an air mass thunderstorm and a
mesoscale convective system?
Air Mass Thunderstorm
Hot moist air rises and cools
Water Vapour condense and form droplets fall creating downdraft
Source of warm air and thunderstorm dissipat