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May 7, 2021 · Acknowledging a paucity of emerging research, and some variation by sub-field, the geographical measures of exposure used in health and medical geography have largely stagnated often focusing on residence-based (‘static’) conceptualisations to define an individuals mobility or exposure.
- Malcolm Campbell, Lukáš Marek, Matthew Hobbs
- 07 May 2021
- 8
- 15, Issue6
1.4A - Defiinitions. Definition of a natural hazard and a disaster, the importance of vulnerability and a community's threshold for resilience, the hazard risk equation. A natural hazard is a natural events that has the potential to harm people and their property. A disaster is the realisation of the hazard, i.e. harm has occurred.
Oct 3, 2024 · Mitigation – working to reduce or prevent the occurrence of hazards – for example building sea walls to prevent flooding in the event of a tsunami or tropical storm. Integrated risk management – analysing potential risks and implementing a coordinated approach to manage and reduce risks.
Oct 7, 2024 · Hazard risk mapping using Geographic Information Systems (GIS) to identify areas at highest risk followed by land use zoning to prevent development in these areas. Draining crater lakes reduces the chance of lahars. Barriers and channels can also be constructed to divert lava flows.
There are three major types of geographical hazard: Geophysical. Atmospheric. Hydrological . hazards caused by land processes, majorly tectonic plates (e.g. volcanoes) atmospheric processes. and the conditions created because of these, such as. hazards caused by water bodies and movement. (e.g. floods) weather systems (e.g. wildfires)
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Exposure is the degree to which people and the things they value could be affected or “touched” by coastal hazards. Sensitivity is the degree to which they could be harmed by that exposure. Adaptive Capacity is the degree to which the community could mitigate the potential for harm by taking action to reduce exposure or sensitivity.
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Using an indicator-based method, multiple data inputs for each component of risk are used to create indices of hazard, exposure, and vulnerability before calculating risk. ... ... Risk is ...
