Ecological and natural hazards Flashcards

1
Q

hazard geography

A

-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

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2
Q

temporal distribution

A

distribution over time and how long it lasts

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3
Q

Magnitude (severity factor)

A

Measures of the strength or intensity of a hazard

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4
Q

Duration (severity factor)

A

length of time a hazard event lasts

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5
Q

Frequency (severity factor)

A

number of times an area experiences a hazard

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6
Q

Probability (severity factor)

A

likelihood of a hazard occurring in a particular location

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7
Q

Scale of Spatial impact (severity factor)

A

the extent of an area that is impacted by a hazard

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8
Q

Geomorphic hazard

A

driven by plate tectonics
e.g. earthquake, landslide

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9
Q

atmospheric hazard

A

created by weather processes
e.g. cyclones, bushfires

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10
Q

Hydrologic hazard

A

driven by water cycle processes
e.g. floods, blizzards

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11
Q

Ecological hazard

A

a biological or chemical hazard

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12
Q

spatial distribution

A

explains how a hazard is spread across the globe
e.g. unifrom, random, clustered

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13
Q

1.Mitigation-
Hazard Managment cycle

A

-moderate severity
-actions that are taken to minimize or eliminate the risk of a hazard

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14
Q

Role of spatial Technologies

A

illustrate what is happening to gain demonstrate an understanding and impact of the past and present situations

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15
Q

Preparedness-
Hazard Managment cycle

A

-prevention
-guaranteeing that emergency services and people at risk are aware of how to respond 

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16
Q

Recovery-
Hazard management cycle

A

action taken to return community to normal or improved conditions following a disaster

17
Q

response-
Hazard management cycle

A

immediate actions taken during and immediately after disaster to ensure safety provide emergency assistance and reduce further damage 

18
Q

LDCs

A

-higher population density
-Larger proportion of children
-lack of regulation of rules and enforcement on building codes, construction, and land use planning
-lack of capacity to recover
-lack of financial resources
-farming, economic activity

19
Q

cultural factors

A

-variations in human settlement
-Distribution and vulnerability of population
-Economic development of a region

20
Q

MDCS

A

-reduce risks associated with hazard
-reduce vulnerability and lower impact
-well built, structure, strict land use planning disaster planning

21
Q

Proximity to human settlement

A

about the distance from ongoing hazard
-Measured and mapped by identifying different impact zones of a hazard(spatial impact)
-impact zones change, depending on type of hazard also geology, prevailing wins, landforms, aspect, slope, ecology, waterways, and land uses

22
Q

spatial association

A

The degree which features are similar distributed
Association can be strong, moderate or weak

23
Q

Vulnerability
high

A

assesses the risk level and how hazard event will affect life and property. More developed countries are less vulnerable and I’m more able to cope

high vulnerability- high risk of exposure to a hazard and inability to cope with a disastrous event

24
Q

higu vulnerable

A

Poor countries which are close to the equator
Not able to rebuild what has been damaged
Less resources and power
Less stable building
Lack of training
Prevalence of hunger and endemic disease

25
Q

Less vulnerable to hazards

A

Wealthier countries
Location
Warning system and level of organization
Education awareness

26
Q

Risk of living close to hazard places

A

-unpredictability- people may be caught out by either the timing or magnitude of the event
-Lack of alternatives - people might not have access to other living places due to economic, social benefits, or no space
-Dynamic hazard - overtime, the thread of hazard may increase decrease in a place
-Cost versus benefits- the risk of living in a hazard prone region is worth the lifestyle
-Fatalism- acceptance that the risk is unavoidable believe in fate and God
-Adoption- are very prepared for the hazard