//Weather and Climates Flashcards
What are the 3 types of clouds
Cirus: streaky, brushed across sky, crystals of ice
Cumulus: fluffy, medium height, fine weather
Stratus: thick blankets covering the sky, low, precipitation
What are the 3 types of rain
Convectional: evaporation and precipitation cycle
Relief: warm air cools at high land, rains
Cyclonic: warm air condenses from cool air when meet
Measuring (units, instrument, recorded) Atmospheric pressure: Temperature: Wind Humidity: Sunshine: Precipitation:
Atmospheric pressure: millibars, barometer, barograph
Temperature: C, thermometer, temperature table
Wind: direction-wind vain strength/speed: anemometer, 0-12 Beaufort Scale
Humidity: percentage, hygrometer- 1 wet - 1 dry
Sunshine: sunshine hours, campbell strokes recorder, isohells
Precipitation: mm, rain gage, isohyets
To Bake Cookies We Have Eggs
Thundra Boreal Cool Temperature Oceanic Warm temperature oceanic Hot desert climate Equitorial
Thundra Climate Where? Precipitation? Temperature? Vegetation? Effect on population
- Latitude 60-70C North. Upper part of Russia, Canada, Alaska, Greenland
- 10 inches per year, dry weather, top soil=dry (permafrost)
- Vegetation is barren, only shrubs, plants, perennial
- Wild life: polar bears, snow geese, most migrate and lay eggs
- Population: global warming will melt permafrost
Hot Desert Climate Where? Precipitation? Temperature? Vegetation? Effect on population
- 15-30C North + South
- 100mm of rain per year (trade winds absorb moisture, cool ocean currents loose moisture)
- Very hot summers, 45C, close to equator
- Vegetation has shortage of water, store water from underground, barren (humans cannot benefit), shortage of food
- Growing population but shortages of water
Effects on climate
Latitude:distance from the equator / further away from equator = colder - no direct sun rays and less hours of sunlight
Altitude: height above sea level / higher up = colder - decrease 1 degree for every 150m
Prevailing winds: winds blow most frequently over an area. Affect the climates of the places they blow - northerly are cooler, southerly winds warmer
How a wind bane and annemeter works
Wind vane: direction of wind. spinning and pointing direction of the way wind is blowing
Annemeter: Speed of wind - arms attached to vertical rod. cups rotate as the wind blows and the amount of times it rotates is recorded
Cyclonic rain
- caused by cyclonic activity
- occurs along the fronts of the cyclone
- formed when two masses of air of different temperature, humidity and density meets.
eg. meeting of moisture in warm tropical wind with a polar air mass. - layer separating them is called the front.
Conventional rain
- sun heats the ground and warm air rises.
- As the air rises it cools and water vapour condenses to form clouds. When the condensation point is reached, clouds are formed.
- Heavy rain storms occur.
Relief rain
- occurs along coastal areas where a line of hills runs along the coast.
- wet onshore wind from the sea meets a mountain or any Barrier, it is forced to rise along the slope and cools.
- When the air temperature falls, water vapour condenses to form clouds.