TROPICAL STORM

TROPICAL STORM Occurs in the coastal areas in the tropics Bring heavy rainfall and strong winds speed about 200 km per hour Accompanied by thunder and lightning In Japan, China & the Philippines are called Typhoon In Bangladesh and Australia is known as Tropical Cyclones Atlantic areas they are called Hurricanes THE FORMATION OF TROPICAL […]

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Precipitation

Precipitation is caused when moist air rises, water vapour in the air cools  and  condenses  to forms clouds. Air cools upwards through the atmosphere because temperature falls with altitude because the Earth’s atmosphere is heated from the Earth’s surface up over. When the water droplets in clouds grow to a certain size, gravity causes them […]

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CLOUD

The Formation of the cloud Formation of Cloud A diagram showing how the formation of cloud TYPES OF CLOUD Cirrus- high level cloud, composed of ice crystal than water thin, fine weather wispy, sunset Cumulus-massive rounded ,flat base,extend to great height, fair weather Stratus- low greyish,sheet layers, cover entire sky,light drizzles Cirrocumulus- white round masses […]

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RELATIVE HUMIDITY

Relative humidity refers to the ratio between the actual amount of water vapour in a given volume of air at a particular temperature and the total amount of water vapour needed to saturate the given volume of air at that temperature. FORMULA RELATIVE HUMIDITY=  AMOUNT OF WATER VAPOUR IN THE AIR     X          100% TOTAL AMOUNT […]

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WINDS

WINDS ARE MOVEMENT OF AIR FROM HIGH PRESSURE TO LOW PRESSURE AREAS. WIND CAN OCCUR ON A SMALL SCALE AND LARGE SCALE 1.LAND AND SEA BREEZE IS AN EXAMPLE OF SMALL SCALE 2. MONSOON WINDS AND PLANETARY ARE EXAMPLE OF LARGE SCALE. LAND BREEZE AND SEA BREEZE land and sea breeze   Planetary Winds Planetary […]

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AIR PRESSURE

DEFINITION AIR PRESSURE IS THE DOWNWARD FORCE EXERTED BY THE WEIGHT OF AIR PER UNIT AREA ON THE EARTH’S SURFACE. AIR PRESSURE MAY VARY WITH ALTITUDE AND TEMPERATURE. AIR PRESSURE IS GREATER AT THE SEA LEVEL AND DECREASES WITH INCREASING ALTITUDE. INSTRUMENT USED BAROMETER ANEROID BAROGRAPH ISOBARS IS THE LINES ARE JOINING PLACES WITH EQUAL […]

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FACTORS INFLUENCE THE TEMPERATURE

1.LATITUDE TEMPERATURE ARE HIGHER AT OR NEAR THE EQUATOR IF AWAY(NORTH & SOUTH POLE) FROM THE EQUATOR TEMPERATURE ARE LOWER REASONS FOR THIS IS THE SURFACE OF THE EARTH’S PART IS CURVED. AS THE RESULT, THE SUN ‘S VERTICAL RAY STRIKE DIFFERENT PARTS OF THE EARTH SURFACE AT DIFFERENT ANGLES. AT THE EQUATOR, THE VERTICAL […]

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