DRRR Flashcards
(72 cards)
Occurs when masses of rock, soil, or debris move down a slope under the force of gravity
Landslide
Includes a wife range or ground movement such as rockfalls, mud and debris flows, and surface failures
called slumps, earthflows, and translational slides
Landslide
What are the causes of landslide?
Slope angle/ stability, water, type of material, shear stress, shear strength
Types of landslides
Slides, slumps, rockfalls, earth flows, debris/ mud flows
Who created the landslide classification?
Varnes (1978)
Type of material
Rock, Earth, Soil, Mud and Debris
Type of Movement
Fall, Topple, Slide, Spread, Flow
Circular depressions which form through dissolution of underlying soluble rocks or collapse of a cave’s roof
Sinkholes
An area of ground that has no natural external surface drainage; when it rains, all of the water stays inside the sinkhole and typically drains into the subsurface
Sinkhole
Which rocks below the surface are sinkholes common in?
Limestone, carbonate rock, salt beds
Has drainage systems with sinkholes and caves underground
Karst topography
Is the ultimate cause of all sinkholes
Dissolution
Two types of sinkholes
Cover- subsidence sinkholes, cover- collapse sinkholes
GAR
Global Assessment Report on Disaster Risk Reduction
It is a comprehensive review and analysis of disaster risk and risk management. It is published every two years.
GAR
Which are the two greatest contributors to disaster risk according to the Average Annual Loss (ALL) by hazard?
Cyclonic wind, storm surge
IPCC
Intergovernmental Panel on Climate Change
Which of the earth’s spheres are involved in an hydrometeorological event?
Hydrosphere and atmosphere (?)
Types of hydrometeorological hazard
Typhoon, thunderstorm, Flood and flash floods, storm surge, El Nino and La Nina,
Dealing with the properties, distribution, and circulation of water on and below the earth’s surface and in the atmosphere
Hydrology
Deals with the atmosphere and it’s phenomena and with weather and weather forecasting
Meteorology
Study of the atmospheric and terrestrial phases of the hydrological cycle with emphasis on the interrelationship between them
Hydrometeorology
Deals with the transfer of water and energy between land and he power atmosphere
Hydrometeorology
A rotating, organised system of clouds and thunderstorms that originates over the tropical waters
Typhoon