Flashcards
Geography SRT Practise
Flashcards do conjunto (30)
- 1VulnerabilityIs a measure of the extent to which a community, structure, service or geographical area that is likely to be damaged or disrupted on account of its nature or location, by the impact of a particular disaster hazard.
- 2Natural HazardExtreme geophysical events that far exceed normal human expectations in terms of their magnitude or frequency and have the potential to cause serious material damage and loss of life.
- 3Natural DisasterOccurs when there has been material damage or loss of life from the interaction between human activity and the geophysical environment.
Example: Earthquake in Pakistani province of Kashmir, 2005, 80 000 killed. - 4Primary hazardsAre the direct result of a volcanic eruption.
Example: explosions, flowing lava, poisonous gas emissions. - 5Secondary HazardsAre the associated effects of a volcanic eruption. Examples: mud flows, flooding, tsunamis, earthquakes.
- 6Tertiary HazardsAre longer term effects of volcanic eruptions. Examples: famine, acid rain and atmospheric changes
- 7SOISouthern Oscillation Index: is the calculation difference between atmospheric pressure at Darwin and Tahiti.
- 8TyphoonIn meteorology, a type of cyclone occurring in the western regions of the Pacific Ocean. It is an extremely large, powerful and destructive storm.
Example: occurs especially in the Philippines of China Sea. - 9Scattergrapha graphic representation of bi variate data as a set of points in the plane that have Cartesian coordinates equal to corresponding values of the two variates.
- 10HurricaneA large tropical storm with high-powered circular winds. Between July and October, hurricanes cause extensive damage along the Atlantic and Gulf coasts of the United States.
- 11Choropleth MapUses graded differences in shading or colour or the placing of symbols inside defined areas on the map in order to indicate the average values of some property or quantity in those areas.
- 12Eye WallIs located immediately outside the eye of a hurricane or cyclone, associated with tall clouds, heavy rainfall and high winds.
- 13Storm SurgeA rising of the sea as a result of wind and atmospheric pressure changes associated with a storm.
- 14Disaster Management PlanIs the organisation and management of resources and responsibilities for dealing with all humanitarian aspects of emergencies, in particular: preparedness, response and recovery in order to lessen the impact of disasters.
- 15Disaster Risk ReductionAims to reduce the damage caused by natural hazards like earthquakes, floods, droughts and cyclones, through an ethic of prevention.
- 16Hazard MitigationAny sustained action taken to reduce or eliminate the long-term risk to life and property from hazard events. It is an ongoing process that occurs before, during and after disasters and serves to break the cycle of damage and repair in hazardous areas.
- 17Low Pressure SystemDiverging winds aloft allow for lower pressure and convergence at the Earth's surface, which leads to upward motion. Tropical cyclones form due to latent heat driven by significant thunderstorm activity, and are warm with well-defined circulations.
- 18High Pressure SystemRegions where the pressure on the Earth's surface is greater, caused by a mass of sinking air, are called highs. Highs spin in an anticlockwise direction in the southern hemisphere; are associated with clear skies and fair weather. Are often bigger and longer lasting than lows.
- 19Atmospheric PressureIs the force exerted on a surface by the air above it as gravity pulls it to Earth.
- 20Cold FrontIs the boundary of an advancing mass of cold air, in particular, the trailing edge of the warm sector of a low pressure system
- 21El NinoA warm ocean current of variable intensity that develops after late December along the coast of Ecuador and Peru and sometimes causes catastrophic weather conditions.
- 22General Circulation of AirIs the large-scale movement of air, and the means (together with the smaller ocean circulation) by which thermal energy is distributed on the surface of the Earth.
- 23IsobarsThe lines on the map that join places with the same mean sea level barometric pressure. The central pressure of each system is written in numerals in a measure of hectopascals (hPa). Example: a high could be (1020 hPa) or higher. While an intense cyclone could have a central low of 960.
- 24Ocean CurrentIs a continuous, directed movement of seawater generated by forces acting upon this mean flow, such as: breaking waves, wind, the coriolis effect, cabbeling, and the temperature and salinity differences.
- 25Storm Tide LevelIs the water level resulting from a storm surge, which increases the height of the sea level above the normal tide level.
- 26TroughIs an elongated region of relatively low atmospheric pressure, often associated with fronts.
Example: A very large trough (8000 km) crosses the North Atlantic Ocean from North East to South West. - 27Warm FrontThe boundary of an advancing mass of warm air, in particular the leading edge of the warm sector of a low pressure system.
- 28Cyclone YasiCyclone Yasi started as a tropical low northwest of Fiji, 29 January 2011. The system intensified to a category 5 cyclone by the time it reached landfall at Mission Beach on the 3rd February 2011.
- 29Hurricane KatrinaWas the largest and 3rd strongest hurricane recorded to reach landfall in the U.S. on 29 August 2005, was a category 5
- 30Cyclone PamMarch 6, 2015, Category 5 Cyclone. Was regarded as one of the worst natural disasters in Vanuatu. 15-16 lives lost. Also affected Fiji, Solomon Islands and other places.
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- Descrição
- Contains the 30 terms that will be tested.
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- lkfollower99
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