Flashcards
JC Geography; Earth & heating system
Cards in this deck (45)
- 1Name 2 gases found in the atmosphereOxygen
Carbon Dioxide
Nitrogen - 2What does the atmosphere do for us?Keeps oxygen in
Keeps the Earth from getting too hot & too cold - 3What does latitude mean?Distance from the equator
- 4Is the earth's heat evenly distributed?No. The equator receives more heat than areas to the north or south.
- 5Atmospheric pressureThis is the weight of the air on the earth's surface.
- 6High pressureCold air. Lots of pressure on the Earth's surface.
- 7Explain what is happening in this diagram?Rays over equator are strongest
Have least distance to travel
They are concentrated
Rays to north/south are weaker
They have farther to travel
They cover a large area
- 8Low pressure.Warm air. Warm air rises. Less pressure on the surface.
- 9Winds move from..... pressure areas to .... pressure areas.High pressure to low pressure.
- 10Coriollis effectSpinning of earth impacts ts wind direction.
- 11DoldrumsAreas of low pressure at the equator
- 12Trade windsSo called as the blow towards the Equator.
- 13Prevailing windsWinds that blow most often over an area.
- 14AltitudeHeight above sea level
- 15AspectThe direction a slope is facing
- 16Which slope gets the most sunlight in Ireland?South facing
- 17North Atlantic driftWarm current that flows towards Ireland
- 18Name two cold currentsLabrador
Canaries - 19The sea heats ....... and cools ..... while the land heats ...... and cools ......The sea heats slowly and cools slowly while the land heats quickly and cools quickly.
- 20Name a hot climate typeHot desert climate
- 21Give an example of a desertSahara
- 22List 3 kinds of climatic zoneHot
Temperate
Cold - 23—Distance from the ocean
- 24Name 2 characteristics of a hot desert climateTemperature & rainfall
- 25What is the distribution of a hot desert?15/30 degrees N/S of equator
- 26List 4 factors that influence the characteristics of this climateLatitude
Prevailing winds
Ocean Currents
Relief - 27How hot & how cold can it get here?30 degrees at day & -6 at night
- 28Explain the role of clouds in the desertKeeps heat in at night and keeps it out during the day
- 29How much rainfall is experienced here?less than 100 mm
- 30Name the mountain providing relief for the Sahara desert.The Atlas mountains
- 31—1. Anti trade winds
2. Doldrums
3.North West anti trades
- 32Ocean Currents are caused by these 3 things;Prevailing winds
Unequal heating of the Earth
Coriolais effect - 33What is an air mass?a body of air with its own temperature, pressure, and humidity level.
- 34Name the 4 air masses that impact Ireland1. Polar Air Masses (North Wind)
2. Continental Air Masses (East Wind)
3. Tropical Air Masses (South Wind)
4. Maritime Air Masses (South Westerly Wind) - 35What is a front?Boundary between 2 air masses
- 36Name two types of frontWarm
Cold
Occluded - 37Name this weather symbolCold front
- 38Describe a DepressionLow pressure (Aka clone or Low)
Oval in shape
Lowest pressure in the middle
Wet, windy weather
Common over Ireland
Lots of cloud
Air moves into centre in anti clockwise direction - 39AnticycloneHigh pressure (High)
Cold air
Oval in shape
Larger than a Depression
Pressure highest at center
Air blows outwards from center
Dry, settled weather - 40Name this symbolWarm front
- 41Name this symbolOccluded front
- 42IsobarsLines of equal pressure on a weather map
Closer the lines the more windy it is
Measured in Ha or in millibars
Moves at intervals of 4 - 43—Cumulus clouds
Medium height
White or dark
Can bring showers of rain
- 44—Cirrus clouds
High altitude
Brush strokes
Dary, settled weather
- 45—Stratus clouds
Low to ground
Dark colour
Long spell of ain
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- JC Geography; Earth & heating system
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- Steven Morgan
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