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37 Cards in this Set

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