LAND AND SEA BREEZES

What’s going to heat up faster???

Why???

Think about how the air looks above you. Hot Cold

LOW PRESSURE

HIGH PRESSURE

Air pressure is the same because air temperature is the same.

You have just created lower air pressure

TEMPERATURE:

DENSITY:

PRESSURE:

DIRECTION OF AIR MOVEMENT

BA

COOLER WARMER

HIGHER LOWER

HIGHER LOWER

AIR GO FROM HIGH TO LOW ( A-B)

How, is heat energy being transferred?

CONVECTION CURRENTS

How does this model simulate why we have land and sea breezes. (Include the terms pressure, temperature, specific heat and density in your answer).

How does this model simulate why we have land and sea breezes. (Include the terms pressure, temperature, specific heat and density in your answer).

Land has a lower specific heat than water. Therefore, the land and the air will heat up faster (temperature increases), making the air less dense. This creates low pressure over land and high pressure over water resulting in a:

Sea Breeze

Now let us look at a real life example

Land

HIGH PRESSURE

LOW PRESSURE

AIR GO??

HIGH TO LOW

Water

Land is warmer, therefore the air above the land will be

warmer (low specific heat)

Water is cooler, therefore air above the water will be

cooler (high specific heat)

Land

Land is cooler, therefore the air above the land will be cooler (low specific heat)

Water is warmer, therefore air above the water will be warmer (high specific heat)

LOW PRESSURE

HIGH PRESSURE

AIR GO??

HIGH TO LOW

Water

Land Breeze

http://www.classzone.com/books/earth_science/terc/content/visualizations/es1903/es1903page01.cfm?chapter_no=19

Smart board link