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Lecture Note Hazard.pdf


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ES 5131: Natural Hazards and Disaster Management
Section-A
Hazard assessment; Hydrological Hazards (River & Coastal Floods, Tropical Cyclones), Geological Hazards
(Earthquakes, volcanic hazards, landslides); Vulnerability analysis: (areas affected by hydrological and geological
hazards); Risk assessment; (Specific risk and measurement methods, risk reduction measures for areas affected
by hydrological and geological hazards, cost of risk reduction measures). Disaster Management measures:
Prevention, Mitigation, Preparedness, Response Recovery and Logistic supports (Training, Public awareness,
Research).
Section-B
The significance of disaster; The disaster threat; National Disaster management Policy; Major requirements for
coping with disaster; The disaster management cycle; Disaster legislation; Counter Disaster Resources;
International Disaster Assistance; Leadership, plans and utilization of resources.

Definition
Hazard means the occurrence, within a specific period of time in a given area, of
potentially damaging natural or man-made phenomena.

Perspective: Bangladesh
Hazards – natural and man-made are phenomenal in Bangladesh. The most
devastating cyclones and floods of the world occur in Bangladesh. The victims know best
on how to cope with these hazards. Hazards are not just cyclones and floods. These are
major disasters, but there are other ones too and some of them are as devastating as the
earlier mentioned ones. For example, cyclones are not as bad as storm surges, which
accompany a cyclone. Drought leaves a permanent damage and encourages the
desertification process that is going on in some parts of northern Bangladesh. River
erosion takes away thousands of hectors of land every year in a country where land is the
most scares resource. Earthquakes may cause millions and billions of Taka worth of
damage.
Perhaps the most disturbing but ignored fact about hazards is that they are all
linked to each other. So diminishing the effects of hazards would involve a total approach
rather than tackling one or the other hazards. But people are unfortunately becoming
increasingly unconcerned about the consequences of the chain of hazards.

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