What is the second name of trade winds and places at a higher altitude have a cool climate and why and rainfall decrease from the west in northern India?
The second name of trade winds is tropical easterlies. Places at a higher altitude have a cool climate because the air at higher altitudes is less dense and can’t hold heat as well as denser air near the surface. This means that the temperature drops as altitude increases.
The second name of trade winds is tropical easterlies. They are called so because they blow from east to west in the tropics.
Places at a higher altitude have a cool climate because the air at higher altitudes is less dense and can't hold heat as well as denser air near the surface. This means that the temperature drops as altitude increases.
The rainfall decreases from the west in northern India because the Himalayas block the moisture-laden winds from the Arabian Sea. The winds are forced to rise over the mountains, which cools and condenses the moisture, resulting in rain on the western slopes of the Himalayas. By the time the winds reach the eastern slopes, they have lost most of their moisture and there is little rainfall.
Here are some additional details about each of your questions:
- Why are trade winds called so?
The trade winds were named by the crews of sailing ships that depended on the winds during westward ocean crossings. The winds were reliable and predictable, making it possible for ships to sail across the Atlantic Ocean and the Pacific Ocean.
- Why do places at a higher altitude have a cool climate?
The air at higher altitudes is less dense because there is less air above it. This means that there are fewer molecules of air to trap heat, so the temperature at higher altitudes is cooler.
- Why does rainfall decrease from the west in northern India?
The Himalayas are a mountain range that runs along the northern border of India. The winds that bring rain to India come from the Arabian Sea, which is to the west of the Himalayas. When the winds reach the Himalayas, they are forced to rise over the mountains. This causes the air to cool and condense, resulting in rain on the western slopes of the Himalayas. By the time the winds reach the eastern slopes, they have lost most of their moisture and there is little rainfall.
رياح دائمة تخص الطبقات السفليةتهب نخو المناطق الاسوائية وهي تسمية انجليزية لانها تساهم في حركة التجارة البحرية للسفن الشراعية
Trade winds can be defined as the wind that flows towards the equator from the north-east in the Northern Hemisphere or from the south-east in the Southern Hemisphere. These are also known as tropical easterlies and are known for their consistency in force and direction. The altitude of the trade-wind inversion varies between 3,000 ft and 7,000 ft, but above cool oceanic waters (e.g., Peru or Humboldt, Benguela, Canaries' currents) it may descend to very near sea level. The immediate cause of the behavior of the trade winds is not known with certainty. Trade winds can be defined as the wind that flows towards the equator from the north-east in the Northern Hemisphere or from the south-east in the Southern Hemisphere. These are also known as tropical easterlies and are known for their consistency in force and direction. The trade winds were named by the crews of sailing ships that depended on the winds during westward ocean crossings. Narrow bands of exceedingly high speed winds are known to exist in the higher levels of the atmosphere at altitudes ranging from 20,000 to 40,000 feet or more. They are known as jet streams. As many as three major jet streams may traverse the North American continent at any given time. At flight altitude the wind can reach speeds of 200 km/h or more. This might seem as hurricane levels. However, since the density of the air decreases with the altitude, the force done by this wind on the plane is smaller than at ground level. High altitudes have lower atmospheric pressure as compared to the plains. Low atmospheric pressure contributes to low temperature. Therefore, high altitude areas have low temperature when compared to the plains. At higher altitudes, the air is thinner. Without this atmosphere, Earth would be uninhabitable cold. So, even though higher altitude areas are closer to the sun, they have less ability to absorb the warmth of the sun because they have less of these gases. Places located on high altitude have cooler climate as compared to the places located on plains.As you climb a mountain, you can expect the air temperature to decrease by 6.5° C for every 1000 meters you gain. This is called the standard lapse rate. If air temperature is 27° C at sea level as shown, you can expect it to be around 1° C at air altitude of 4000 meters because of the lapse rate. The Bay of Bengal branch of the monsoon winds moves towards northeast and return westwards covering the northern plains. While they move towards west their moisture contains tends to reduce with subsequent rains. Hence the rainfall decreases from east to west in northern India.
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