Term
|
Definition
A hazard formed by tectonic/geological processes e.g. earthquakes, tsnami,
volcano |
|
|
Term
|
Definition
| A perceived natural event which has the potential to threaten life and property |
|
|
Term
| Hydro-meterological Hazard |
|
Definition
| A hazard formed by hydrological and atmospheric processes e.g. floods (h), storms and droughts |
|
|
Term
|
Definition
| A high risk combined with the inability of individuals and communities to cope |
|
|
Term
|
Definition
| A hazard becoming a reality in an event which causes death and damage to goods, property and the environment |
|
|
Term
|
Definition
| The probability of a hazard event occuring and creating loss of lives and livelihoods |
|
|
Term
|
Definition
| How much solar radiation a surface reflects |
|
|
Term
|
Definition
| Any long term trend or shift in climate (average weather over 30 years) detected by a sustained shift in average value for any climatic element e.g. rainfall |
|
|
Term
| Enhanced Greenhouse Effect |
|
Definition
| This occurs when the levels of greenhouse gases in the atmosphere increases owing to human activity |
|
|
Term
|
Definition
| Energy sources which are rich in carbon and which release carbon dioxide when burnt e.g. coal |
|
|
Term
|
Definition
| A recently measured rise in the average surface temperature of the planet |
|
|
Term
|
Definition
| The warming of the Earth's atmosphere due to the trapping of heat that would otherwise be radiated back to Earth |
|
|
Term
|
Definition
| The point at which a system switches from one state to another |
|
|
Term
|
Definition
| Where the output of a system acts to amplify (positive) or reduce (negative) further output e.g. the melting of Arctic permafrost leads to the release of trapped methane which leads to further global warming |
|
|
Term
|
Definition
| How often an event of a certain magnitude occurs |
|
|
Term
|
Definition
| The size of an event e.g. the size of an Earthquake on the Richter Scale |
|
|
Term
|
Definition
| A semi molten zone of rock underlying the Earth's crust |
|
|
Term
|
Definition
| A boundary between plates where the movement of plates is parallel to the plate margin and the plate slide past east other e.g. San Andreas Fault Line |
|
|
Term
| Constructive Plate Boundary |
|
Definition
| A boundary between plates where the plates are moving apart |
|
|
Term
| Destructive Plate Boundary |
|
Definition
| A boundary between plates where the plates are moving together |
|
|
Term
|
Definition
|
|
