click below
click below
Normal Size Small Size show me how
Geography Glossary 4
Geography Key Words and Definitions Climatic Hazards Topic
Question | Answer |
---|---|
Eye | The still centre of a tropical storm (hurricane) |
Flash flood | A sudden and severe flood due to heavy rain |
Storm surge | An unusually high tide, associated with areas of low pressure and on-shore winds (Holland) |
Tropical storm | An intense spinning storm, perhaps 650km across, an extreme low pressure system which brings strong winds and heavy rainfall. Formed over hot sea surfaces (27C). Known as hurricanes in the Caribbean, cyclones in the Indian Ocean and typhoons in Far East |
Sahel | The semi-arid zone south of the Sahara where drought & desertification is happening |
Desertification | The process by which fertile land in dry areas becomes desert |
Global warming | The gradual increase in the Earth’s temperature, which may be caused by an increase of greenhouse gases in the atmosphere |
Acid rain | Rainfall which has become acidic due to air pollution from burning fossil fuels |
Drought | A long continuous period without precipitation |
Greenhouse effect | Atmospheric gases ( e.g. carbon dioxide & methane) prevent heat escaping out to space |