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Climatic regions BY Prashant khadka

Climatic regions by prashant

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Page 1: Climatic regions by prashant

Climatic regions

BYPrashant khadka

Page 2: Climatic regions by prashant

Weather- is the combination of temperature, humidity, precipitation, wind, cloudiness, and other atmospheric conditions at a specific time.

Climate- is the characteristic condition of the atmosphere near the earth's surface at a certain place on earth. It is the long-term weather of that area (at least 30 years).

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SOLAR RADIATION LATITUDE

ELEVATION/ ALTITUDE WIND

AMOUNT OF PRECIPITATION

WATER CURRENTS

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Tilt of earth’s axis as it orbits the sun

Revolution

Parallelism

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Frigid

Frigid

Temperate

Temperate

Torrid

Latitude

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• The amount of solar energy varies markedly with Latitude.

Variation Factors: i. At higher latitudes, radiation hits the

surface at a greater angle, so it spreads over a larger area.

ii. Radiation that intercepts the atmosphere at an angle must travel through a deeper layer of air.

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As the winds move northward and southward, they cool.

In the horse latitudes (subtropical high), where the cool air descends , two belts of dry climate encircle the globe.

The descending air warms and can therefore hold more moisture.

The dry air draws water from the surface, causing arid conditions.

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Fridge zones

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ClimatePolar region receive less intensive solar radiation because the sun's energy arrives at an oblique angle, spreading over a larger area, and also travels a longer distance through the Earth's atmosphere in which it may be absorbed, scattered or reflected, which is the same thing that causes winters to be colder than the rest of the year in temperate areas.

The axial tilt of the Earth has a major effect on climate of the polar regions. Since the polar regions are the farthest from the equator, they receive the least amount of sunlight and are therefore frigid. The large amount of ice and snow also reflects a large part of what little sunlight the Polar regions receive, contributing to the cold. Polar regions are characterized by the polar climate, extremely cold temperatures, heavy glaciation wherever there is sufficient precipitation to form permanent ice, and extreme variations in daylight hours, with twenty-four hours of daylight in summer, and complete darkness at mid-winter.

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Icebergs

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A glacier carving a valley in Greenland

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Photo of Pygoscelis papua (gentoo penguin) on Petermann Island, Antarctica,

Transantarctic Mountains, Northern Victoria Land, view from close to Cape Roberts

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milkwort

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The Yakuts - a Legendary Horse People

The Lapps - the Indigenous People of Lapland

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Traditional qamutik (sled),

umiak

kayak

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This Inunait or Inuit parka/anorak is typical of an Inuit woman's parka from the early 1900s and was made from the thin skins of summer caribou (the summer skin is short, mostly consisting of tight under wool). The parka has 2 extra layers to provide additional warmth to its user.

Clothing consisted of coat, trousers, stockings, shoes or boots.

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WE CAN DIVIDED THE EARTH INTO 3 TEMPRATURE ZONES ACCORDING TO THE SUN LIGHT RECEIVED ROUND THE YEAR

i. TROPICAL ZONE.ii. TEMPERATE ZONE.iii.FRIGID ZONE.

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The region from23 1/2 North to 23 ½ south is known as TROPICAL ZONE.

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THE REGION BETWEEN 23 ½ NORTH TO 66 66 ½ NORTH AND 23 ½ SOUTH TO 66 ½ SOUTH IS KNOWN AS TEMPERATE ZONE.

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THE REGION BETWEEN 66 ½ NORTH TO 90 NORTH AND 66 ½ SOUTH TO 90 SOUTH IS KNOWN AS FRIGID ZONE.

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Torrid zones

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Torrid ZonesIn the Torrid or tropical Zone, also known as the Tropics, the Sun is

directly overhead twice (only once at the extreme limits of the zone) during the year.

In the Northern Hemisphere, after the sun moves north from the equator it will be overhead once before it reaches, at the June solstice, the Tropic of Cancer (at 23.5 degrees North), and once after, before it moves south back to the Equator.

In the Southern Hemisphere, after the sun moves south from the equator it will be overhead once before it reaches, at theDecember solstice, the Tropic of Capricorn (at 23.5 degrees South), and once after, before it moves north back to the Equator.

The Torrid Zone is bounded by the Tropic of Cancer and the Tropic of Capricorn.

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Torrid forest

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A relatively rapid increase in temperature has been documented during the past century, both at Earth’s surface and in the oceans.

If emission rates for greenhouse gases (which trap heat inside Earth’s atmosphere) continue on their current track, models indicate that the globe will be 4.3 to 11.5°F warmer by 2100 than it was in 1990.

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