Both sides of the lower atmosphere at the equator, the northern hemisphere blow northeasterly, southeasterly winds blowing the southern hemisphere, this small change in wind direction
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No. 2
信风
Make changes at any time, on a regular basis and to the wind direction. Tang Yu Hu "boat whistle heard on Nights" Poetry: "ri-designate the trade winds moving boat, river aloe vast and lonely night air." Tangli Zhao, "Tang Dynasty Supplement" volume are: "Since the white sand on the upstream, often to be northeasterly , that the trade winds. "such as: 24 Fan flower trade winds.
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No. 3
In the low altitude from the subtropical high pressure zone towards the equatorial regions of the wind. Northeast trade winds prevail the northern hemisphere, southern hemisphere, south-east trade winds prevail. Jin Fa Xian "Buddha mind": "South West Asia Standard Bank, was the beginning of the trade winds in winter, day and night on the 14th, to sub-national division."
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No. 4
信风
Term wind power. Still made by the wind. Tang Yuan Zhen, "a bird" by Poetry 11: "drive to drive to long trade winds, occasional pillars of how to use hi!" Ming Gao's "3 o'clock in mind": "Afternoon, I was carrying the pan-five, Zhang cloth Fan by the trade winds, and even see the weather. "
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No. 5
信风
信风
The lower atmosphere, from the subtropical zone towards the equatorial regions of the prevailing airflow. Trade winds reach of areas, as long as a certain season each year will be on from, hence the name. Bias force in the earth's rotation under the action of the Northern Hemisphere north-east trade winds blowing Sheng, Sheng southern hemisphere trade winds blowing southeast. With the summer and winter seasons, for North-South trade winds with moving north in summer, south in winter.
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No. 6
信风
Trade winds cause The formation of the trade winds and the Earth three times the circulation, the long-term sun exposure, heat up to the equator, the equatorial heat the air near the ground up in the near-surface equatorial low pressure zone formed, the formation of high pressure at high altitude, high-altitude high-altitude air pressure to the North and South low pressure moving in the vicinity of 30 degrees latitude north and south met the cold sink, near the ground in the formation of subtropical high pressure zone. At this point, the equatorial low pressure zone and the subtropical high pressure zone between the air pressure difference, air flow from the "subtropical high" flow "red low." Turn bias force on the ground under the influence of the Northern Hemisphere subtropical high in the air to run south, the air pressure gradient running biased in favor of the right to form a north-easterly, that northeastern trade winds. Otherwise the formation of the Southern Hemisphere southeast trade winds. In the upper troposphere and the trade winds in the opposite direction of prevailing winds, the anti-trade winds. And anti-trade winds trade winds in the equatorial and southern latitude 20 ~ 35 ° between the vertical circulation constitutes a closed circle, that Hadley circulation. As the subtropical high was especially evident in the ocean, year-round presence on the mainland only winter there. So prevalent in the tropical ocean and stable year-round trade winds, trade winds on the continent is less stable, and only occurs in winter months. Two hemispheres of the trade winds converge near the equator, forming the ITCZ. Trade winds is a very stable system, but there are significant interannual variations. Some people think that the collapse of the eastern Pacific trade winds, equatorial sea surface temperature may affect the intense rise, El Nino causes the formation. The increase, there is a pattern of weakening El Niño greatly diminished when the trade winds, resulting in the equatorial region of the zonal circulation WACKER also weakened. Anti-El Niño, the trade winds strengthen, enhance circulation and westward expansion Wacker. Cycle of trade winds North and south hemisphere trade winds will change with the seasons with the occurrence of a regular north-south movement. Such as the Northern Hemisphere with the Pacific on the northeast trade winds, in March each year at latitude 5 ° -25 °, to September, with the wind to move north to latitude 10 ° -30 °, the second in March, with the wind but back to latitude 5 ° -25 ° in the vicinity. Thus, in the trade winds with a range of specific areas, there will be changes in the trade winds cyclical phenomenon. With the trade winds Subtropical high pressure zone with equatorial orientation of the wind blowing called trade winds. Bias force in the Earth's rotation under the effect of wind direction deviation occurs in the northern hemisphere to form the northeast trade winds; the southern hemisphere to form the southeast trade winds. Year-round trade winds blowing zone, called the trade wind belt.
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Trade winds cause
The formation of the trade winds and the Earth three times the circulation, the long-term sun exposure, heat up to the equator, the equatorial heat the air near the ground up in the near-surface equatorial low pressure zone formed, the formation of high pressure at high altitude, high-altitude high-altitude air pressure to the North and South low pressure moving in the vicinity of 30 degrees latitude north and south met the cold sink, near the ground in the formation of subtropical high pressure zone. At this point, the equatorial low pressure zone and the subtropical high pressure zone between the air pressure difference, air flow from the "subtropical high" flow "red low." Turn bias force on the ground under the influence of the Northern Hemisphere subtropical high in the air to run south, the air pressure gradient running biased in favor of the right to form a north-easterly, that northeastern trade winds. Otherwise the formation of the Southern Hemisphere southeast trade winds. In the upper troposphere and the trade winds in the opposite direction of prevailing winds, the anti-trade winds. And anti-trade winds trade winds in the equatorial and southern latitude 20 ~ 35 ° between the vertical circulation constitutes a closed circle, that Hadley circulation. As the subtropical high was especially evident in the ocean, year-round presence on the mainland only winter there. So prevalent in the tropical ocean and stable year-round trade winds, trade winds on the continent is less stable, and only occurs in winter months. Two hemispheres of the trade winds converge near the equator, forming the ITCZ. Trade winds is a very stable system, but there are significant interannual variations. Some people think that the collapse of the eastern Pacific trade winds, equatorial sea surface temperature may affect the intense rise, El Nino causes the formation. The increase, there is a pattern of weakening El Niño greatly diminished when the trade winds, resulting in the equatorial region of the zonal circulation WACKER also weakened. Anti-El Niño, the trade winds strengthen, enhance circulation and westward expansion Wacker.
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Cycle of trade winds
North and south hemisphere trade winds will change with the seasons with the occurrence of a regular north-south movement. Such as the Northern Hemisphere with the Pacific on the northeast trade winds, in March each year at latitude 5 ° -25 °, to September, with the wind to move north to latitude 10 ° -30 °, the second in March, with the wind but back to latitude 5 ° -25 ° in the vicinity. Thus, in the trade winds with a range of specific areas, there will be changes in the trade winds cyclical phenomenon.
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With the trade winds
Subtropical high pressure zone with equatorial orientation of the wind blowing called trade winds. Bias force in the Earth's rotation under the effect of wind direction deviation occurs in the northern hemisphere to form the northeast trade winds; the southern hemisphere to form the southeast trade winds. Year-round trade winds blowing zone, called the trade wind belt.
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English Expression
: strong wind continually blowing towards the equator from the SE or the NE
