Weather

WEATHER AND CLIMATE

WEATHER

Hour to hour , day to day state of the atmosphere
It includes temperature , sunshine , cloud c everyplace , hurriedness , atmospheric pressure ,
wind speed and wind direction
It is short and localised in small areas.

CLIMATE

Average hold conditions of a place taken everyplace a period of time, often 30 year.
It is long-term and is often applied to level-headed parts of the globe.

AIR MASSES

Defenition

An telephone line mass forms when air remains stationary over a place for several(prenominal) days.
During this time the air is likely to assume the temperature and humidity properties of that area.
ambiance masses are classified according to

- The latitude in which they originate , as this determines their temperature, giving either cold wintry air if to the north or warm, tropical air of to the south.
- The come forward over which they develop , as this effect their humidity and downfall , giving either wet marine air if over the sea , or dry Continental air , if over the land.
The four main air masses :

Polar maritime
Polar continental
Tropical maritime
Tropical continental


FACTORS AFFECTING TEMPARTURE

Latitude :
Places near the equator are much warming than places nearer to the poles.
why ?



This is due to the curvature of the earth and the travel of the sun.

Equator sun always high in the sky when it is overhead it shines directly downwords, concentrating its heat into a small area which get out become very hot.
Poles sun always low in the sky , its heat is spread over a good area. temperature remain lower.

Distance from the sea :
The sea is less grievous than the land
==> can be heated to a great depth.
This means that the sea takes much long-range to heat up in summertime than the land.
The sea retains its heat for much longer ad cools down more slowly than the land in winter.
This is why places that are inland are warmer in summer but colder in winter than places on the coast.
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