ERS Global and local winds
Convection cells
Large, circular patterns of moving air
Given below are the names of four local winds. Identify the odd one out with the correct reason:- Chinook, Mistral, Loo, Foehn
Mistral, because it is the only cold local wind, while the others are warm local winds.
Wind
Movement of air caused by differences in air pressure
Jet stream
Narrow belts of strong winds that blow in the upper troposphere
In which direction do prevailing westerlies flow?
From west to east
What type of winds blow constantly, predictably, and over long distances?
Global winds
Cool, sinking air at 30 degrees North create a pressure belt known as the
Horse latitudes
Low pressure area
Warm, less dense air rises
Horse latitudes
Area around 30 degrees latitude in both hemispheres where there is very little wind
Doldrums
Area around the equator where there is very little wind ("dull", "sluggish")
what heat transfer process makes warm air rise along the equator in the sink closer to the poles
Convection
Land breeze
Cool land air flows to the ocean at night, causing warm ocean air to rise
Mountain breeze
Cool mountain air moves down a mountain slope towards a valley
Sea breeze
Cool ocean air flows to land during the day, causing warm land air to rise
Warm, rising air at the equator forms a calm, weak wind called the
Doldrums
Which global winds directly effect weather in the U.S.?
Prevailing westerlies
A type of local wind where hot, dry wind accelerates downhill affecting southern coastal California. These winds can exacerbate wildfires and even tip over 18 wheelers on highways. Sometimes called "devil winds."
Santa ana winds
Coriolis effect
The curving of a path of a moving object from an otherwise strait path due to earth's rotation
Where does the initial source of energy come from that creates winds
The sun
The tropical winds running from 0 to 30 degrees latitude are called
Trade winds
What is the initial source for global winds and convection in the atmosphere?
Unequal heating of the earth by the sun
Why does warm air rise
Warm air is less dense than cold air
Chinook is a ___ wind
Warm, dry
One of the following statements is true for weather maps. Identify the correct statement
When the isobars are closer, the pressure gradient is steep and this indicates stormy weather
Trade winds
Winds that blow from 30 degrees latitude almost to the equator in both hemispheres
Polar easterlies
Winds that blow from east to west between 60 and 90 degrees latitude
Westerlies
Winds that blow from west to east between 30 and 60 degrees latitude in both hemispheres
Local winds blow over
short distances