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