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37 Cards in this Set
- Front
- Back
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What is the study of our galaxy and universe called?
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Astronomy
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What is the study of landforms called?
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Geomorphology
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What is the study of rocks, minerals called?
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Geology
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What is the study of our atmsophere called?
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Meteorology
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How many layers of the atmosphere are there?
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Five (5)
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In which layer of the atmosphere does weather occur?
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Troposphere
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In which layer of the atmosphere is there a high concentration of ozone gas?
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Stratosphere
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In which two layers of the atmosphere is there a temperature inversion?
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Stratosphere & Thermosphere
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What gas makes up approximately 78% of our atmosphere?
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Nitrogen
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What gas makes up approximately 21% of our atmosphere?
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Oxygen
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Define: Weather
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The day-to-day conditions of the atmosphere.
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Define: Climate
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Long term weather patterns for a particular region.
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Name three (3) characterisitics of a high pressure system.
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- Cool descending air
- winds blow around in a clockwise fashion - Fair weather, cool or cold |
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Name three (3) characteristics of a low pressure system.
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- Warm ascending air
- winds blow around in a counter-clockwise fashion. - Stormy weather, clouds |
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Name the four types of weather fronts that exist.
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1) Warm Front
2) Cold Front 3) Stationary Front 4) Occludded Front |
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Define: Air Mass
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A large parcel or air that has characteristics of where it formed. (i.e temperature and moisture content)
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What is the term given to the "highway" of air that steers weather systems across the continents?
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The Jet Stream
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The boundary between two air masses is commonly called a ____________.
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Front
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What is the dew point?
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The temperature at which there is 100% relative humidity. Precipitation is occurring or about to occur.
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What instrument is used to measure air temperature?
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A thermometer
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What instrument is used to measure wind speed?
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An anemometer
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What instrument is used to determine the wind direction?
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Wind Vane or Wind sock
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What instrument is used to measure atmospheric pressure?
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A barometer
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What instrument is used to measure relative humidity?
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A Psychrometer
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What is a cP air mass? Explain.
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Continental Polar Air mass.
Dry and very cold. (originates over land and from polar regions) |
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What is a cT air mass? Explain.
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Continental Tropical air mass.
Dry and warm air mass. (originate over land and from Tropical regions) |
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What is a mP air mass? Explain.
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Maritime Polar air mass.
Wet and cold air mass. (originates over water and from polar regions) |
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What is a mT air mass?
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Maritime Tropical air mass.
Wet and warm air mass. (originates over water and from Tropical regions) |
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What is the force that directs winds to the right in the northern hemisphere called?
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The Coriolis Effect
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Where are Trade winds located?
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Located between 0 - 30 N or S of the Equator.
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Define: Climatology
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The study of Earth's climate and the factors that affect past, present, and future climatic changes.
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What does the acroynm "LOWER Nearness to Water" mean?
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Factors that affect Climate
L: Latitude O: Ocean Currents W: Winds / Air Masses E: Elevation R: Relief Nearness to Water |
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Which of the factors that affec climate affect Guelph's climate the most (top 3)?
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1) Latitude (43 N)
2) Winds / Air Masses (fronts) 3) Nearness to Water (Great Lakes) |
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Where are the doldrums?
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Regions near the Equator that experience very light winds year round.
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Why do we have seasons? Explain.
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We experience seasons because Earth is on a constatnt tilt of 23.5. This tilt affects the amont of solar energy reaching parts of the Earth's surface at different times of the year.
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What two days of the year is there 12 hours of daylight everywhere on Earth?
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March 21st (Vernal Equinox) and September 21st (Atumnal Equinox)
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When is the longest day of the year in the northern hemisphere?
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June 21st
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