T1.7 Differences In Impact Of Types Of Disaster & Trends Flashcards
1
Q
What are disaster trends?
A
- Disaster trends: show the number of tectonic events that has occured over a period of time. This shows different periods of fluctuation and significant changes.
2
Q
What disaster trends are analysed?
A
- Meteorological: involving the atmosphere, weather-related
- Hydrological: water-related events
- Geophysical: tectonic hazards
- Climatological: natural climate related droughts, heatwaves, floods
- Biological: organisms causing threats (disease)
3
Q
What types of disaster have worse effects?
A
- Disasters with a slower period of onset as they cause damage and suffering for longer periods of time.
4
Q
What trend can be seen with reported disasters and natural hazard types and why?
A
- Reported disasters have risen dramatically since 1960
- Number of deaths has been decreasing
- Climate change cause
- Population growth cause
- Better detection and technology
5
Q
How has human vulnerability changed in trends?
A
- Population growth: 1960 < 3bn and in 2016 —> 7.3 bn
- Increased cities and mega cities increasing population density
- More development —> potential for economic loss
- Infrastructure collapse and impermeability
- Poor quality settlements and infrastructure
- Global poverty decrease over time
6
Q
What makes trend data reliable? (P E S T)
A
- Improved technology to detect events
- Improved measures of economic loss
- Improved standardised reporting efforts and better data collection methods
7
Q
What can make trend data unreliable (P E S T)
A
- No definition universally agreed for a disaster
- no universal way to measure a disaster
- Governments may not like to admit the scale of loss or may over-inflate for extra foreign aid
- Methods of data collection change over time
- Hard to quantify the level of social loss and who is impacted
- Hard to judge and collect data over long periods of time
- Data collection is not the priority after a disaster
