Ecological and natural hazards Flashcards
hazard geography
-Study of both natural and anthropogenic hazards
-how a hazard occurs
-its distribution
-impacts it has on humans and the environment
-how humans minimize their impacts and risks
temporal distribution
distribution over time and how long it lasts
Magnitude (severity factor)
Measures of the strength or intensity of a hazard
Duration (severity factor)
length of time a hazard event lasts
Frequency (severity factor)
number of times an area experiences a hazard
Probability (severity factor)
likelihood of a hazard occurring in a particular location
Scale of Spatial impact (severity factor)
the extent of an area that is impacted by a hazard
Geomorphic hazard
driven by plate tectonics
e.g. earthquake, landslide
atmospheric hazard
created by weather processes
e.g. cyclones, bushfires
Hydrologic hazard
driven by water cycle processes
e.g. floods, blizzards
Ecological hazard
a biological or chemical hazard
spatial distribution
explains how a hazard is spread across the globe
e.g. unifrom, random, clustered
1.Mitigation-
Hazard Managment cycle
-moderate severity
-actions that are taken to minimize or eliminate the risk of a hazard
Role of spatial Technologies
illustrate what is happening to gain demonstrate an understanding and impact of the past and present situations
Preparedness-
Hazard Managment cycle
-prevention
-guaranteeing that emergency services and people at risk are aware of how to respond