1. Name the world's pressure belts.
2. What is Ferrel's Law?
3. What are Doldrums? Why are they called so?
4. What are Trade Winds? How are they caused?
5. What are Westerlies?
6. What are Roaring Forties and Furious Fifties? Why are they called so?
7. Name the Planetary Winds.
8. What does Pressure Gradient mean? 9. What are causes and consequences of shifting of pressure belts?
10. What is Coriolis Force? What is its result?
11. What are Local Winds? Give examples.
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Answers
Answer:
1] On the earth's surface, there are seven pressure belts. They are the Equatorial Low, the two Subtropical highs, the two Subpolar lows, and the two Polar highs. Except for the Equatorial low, the others form matching pairs in the Northern and Southern Hemispheres.
2] : a statement in meteorology: a wind in any direction tends to deflect to the right in the northern hemisphere and to the left in the southern with a force that is directly proportional to the mass of wind in question, its velocity, the sine of the latitude, and the angular velocity of the earth's rotation.
3] The "doldrums" is a popular nautical term that refers to the belt around the Earth near the equator where sailing ships sometimes get stuck on windless waters. ... That is why sailors well know that the area can becalm sailing ships for weeks. And that's why they call it the doldrums.
4] Trade winds are caused by strong warming and evaporation within the atmosphere around the equator where the warm air rises rapidly, carrying a lot of moisture.
5] The westerlies, anti-trades, or prevailing westerlies, are prevailing winds from the west toward the east in the middle latitudes between 30 and 60 degrees latitude. They originate from the high-pressure areas in the horse latitudes and trend towards the poles and steer extratropical cyclones in this general manner.
6] Western winds move in both the hemispheres (northern and southern) between 35 to 60 degrees latitudes. ... In the olden days, sailors called them 'roaring forties', 'furious fifties' and 'crying sixties' since these winds create a very noisy atmosphere and were not favorable for them at all.
7] In the planetary wind system, there are three main types of planetary winds - The Trade Winds, The Westerlies, and The Easterlies.
8] In atmospheric science, the pressure gradient is a physical quantity that describes in which direction and at what rate the pressure increases the most rapidly around a particular location. The pressure gradient is a dimensional quantity expressed in units of pascals per metre.
9] The shifting of the pressure belts cause seasonal changes in the climate, especially between latitudes 30° and 40° in both hemispheres. In this region the Mediterranean type of climate is experienced because of shifting of permanent belts southwards and northwards with the overhead position of the sun.
10] Coriolis Force an artifact of the earth's rotation. Once air has been set in motion by the pressure gradient force, it undergoes an apparent deflection from its path, as seen by an observer on the earth. This apparent deflection is called the "Coriolis force" and is a result of the earth's rotation.
11] Local winds are winds that blow over a limited area. Local winds blow between small low and high pressure systems. They are influenced by local geography. Nearness to an ocean, lake, or mountain range can affect local winds. ... Local winds can affect the weather and climate of a region.
Examples of local winds include sea breezes, which blow from the sea to the land and keep coastal temperatures more mild, and land breezes, which blow from the land toward the sea, usually at night.
Explanation:
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