Science weather dynamics 2 Flashcards
What causes jet streams?
Temperature differences and the Coriolis effect.
How fast can jet streams go?
300 km/h or more.
Where do jet streams typically form?
From the equator towards the poles.
What is a weather front?
A meeting point of two different air masses.
What does warm air do at a front?
It rises and forms clouds
What causes ocean surface currents?
Wind and heat from the sun.
Which side of ocean basins have faster currents?
The western side.
Where is warm water found in the ocean?
Near the equator
How do currents move in different hemispheres?
Clockwise in the north, counterclockwise in the south.
What is the Gulf Stream?
warm ocean current that moves heat toward the North Pole.
How does the Gulf Stream affect temperatures in Canada?
makes eastern Canada warmer in winter.
What is the “conveyor belt” in the ocean?
movement of deep ocean water caused by temperature and salt differences.
What is weather forecasting?
Predicting future weather based on current data.
How do meteorologists measure air temperature?
thermometer.
What tool is used to measure rainfall/precipitation
Rain Gauge
How do we measure air pressure?
Barometer
What is relative humidity?
The amount of water vapor in the air.
How do meteorologists measure wind speed?
anemometer
Which of Earth’s spheres are good heat sinks?
atmosphere and hydrosphere
Which describes Earth’s energy budget?
Earth absorbs the same amount of energy from the Sun as it radiates back into space.
The folklore related to the prediction of the weather
Weather lore
What are the properties of an arctic air mass?
Cold and dry
What does the Labrador Current bring to the waters off Newfoundland and Labrador?
Cold water from the north
Which change of state requires a release of heat?
Liquid to gaz
