What does the trade winds refer to in geography?

Half of it is to say that the southeast trade wind and the northeast trade wind are willing to be the wind in orbit Hehe The formation of the trade wind is related to the circulation of the earth's three circles, under the long-term irradiation of the sun, the equator is heated up the most, and the air near the equator rises by heating, forming an equatorial low pressure zone near the ground, forming a high pressure at high altitude, and the high-altitude high pressure moves in the direction of the high altitude low pressure in the north and south, and sinks in the cold near 30 degrees north and south latitudes, forming a subtropical high pressure zone near the ground. At this time, a pressure difference occurs between the equatorial low pressure zone and the subtropical high pressure zone, and the air flow flows from the "subtropical high" to the "red low". Under the influence of geostrophic deflection force, when the air in the subtropical high in the Northern Hemisphere moves southward, the air movement is biased to the right of the pressure gradient force, forming a northeast wind, that is, the northeast trade wind.

In the southern hemisphere, the southeast trade winds are formed. In the upper troposphere, winds that are in the opposite direction to the trade winds, i.e., anti-trade winds, prevail. The trade winds and anti-trade winds form a closed vertical circulation between the equator and 20 35° north and south latitudes, known as the Hadley circulation.

Because the subtropical high is particularly pronounced in the ocean, it exists all year round and only in winter on the continent. Therefore, stable trade winds prevail all year round on the tropical ocean, while the stability of the trade winds on the continent is poor, and they only occur in the winter half of the year. The trade winds of the two hemispheres converge near the equator to form a tropical convergence zone.

The trade winds are a very stable system, but there are also significant interannual variations. It has been suggested that the collapse of trade winds in the eastern Pacific may have had an impact on the intense rise in equatorial SST and was responsible for the formation of El Niño. The strengthening and weakening of the trade winds during El Niño is a great weakening, resulting in the weakening of the zonal Wacker circulation in the equatorial region.

During the anti-El Niño period, the trade winds strengthened, and the Wacker circulation strengthened and expanded westward.

Trade winds (trade wind) in the lower atmosphere on both sides of the equator, the northern hemisphere blows northeast winds, the southern hemisphere blows southeast winds, the direction of this wind rarely changes, they are like this year after year, stable appearance, very credit, this is the reason why trade wind is translated into "trade wind" in Chinese.

To put it simply, the trade winds are the winds that are between 30 and 60 degrees north and south latitudes. Trade winds bring little rain.

Judging the wind direction of a place requires a specific analysis of specific problems

The cause of wind is uneven air pressure (uneven heating of the air), from which several wind directions can be derived.

Monsoon influence: China's monsoon, the summer is mostly southeast wind, and the winter is mostly northwest wind pressure: generally a pressure line will be given, and then judged.

Temperature effect: heat island effect, the wind blows from the effect area to the city.

Trade wind belts allow you to determine the approximate wind direction of an area.

And it is possible to remember the direction of the flow of ocean currents.

The wind direction can be judged by passing the back of the trade wind belt.

Differences: 1. The trade winds are stable throughout the year, but they move seasonally from north to south; And the monsoon, the summer and winter parades are in different directions. 2. The causes of the two are different.

Trade winds: Trade winds are the air currents of the subtropical high pressure to the tropical low pressure. The root cause is the inhomogeneity of global solar radiation (roughly decreasing from the equator to the poles).

The temperature near the equator is high, the air flow rises, and it is easy to form convective rain, so the surface pressure is low, that is, the equatorial low pressure zone. Updrafts accumulate at high altitudes, creating high pressure, and the upper-air flows towards high latitudes. In the subtropical region, it meets the airflow from the subpolar depression and is forced to sink, and the surface pressure is high, forming the subtropical high pressure zone.

Under the action of the pressure gradient force, the surface airflow flows from the subtropical high to the tropical low, i.e., the trade winds. Due to the geostrophic deflection force, the northern hemisphere deflects into northeasterly winds, i.e., the northeast trade wind belt, and the southern hemisphere is the southeast trade wind belt.

Monsoon: The root cause is the difference in the thermal properties of land and sea. The specific heat of the continent is small, and the specific heat of the ocean is large, resulting in the difference between the high and low pressure between the ocean and the land, and the air flow from high pressure to low pressure.

In summer, the continents warm up rapidly, the air flow rises, and low pressure forms on the surface. The ocean warms slowly, and high pressure forms on the surface. Wind direction is blown by the sea and land (e.g., the southeast monsoon in the East Asian summer); In winter, the continent cools down quickly, forming a high pressure, and the ocean cools slowly, forming a low pressure.

The wind direction is blown by the continent and the ocean (northwest wind in East Asian winter).

For the first time in the world's geographical literature, the concept of "trade winds" was explicitly proposed and recorded. Faxian set out from present-day Sri Lanka and returned in September 411 AD, at the end of the southwest monsoon. The so-called "trade winds" are consistent with the current concept of climatology.

How the wind is formed and how it flows.

Trade winds (trade wind) in the lower atmosphere on both sides of the equator, the northern hemisphere blows northeast winds, the southern hemisphere blows southeast winds, the direction of this wind rarely changes, they are like this year after year, stable appearance, very credit, this is the reason why trade wind is translated into "trade wind" in Chinese. In ancient Chinese texts, there is the word "trade wind", which refers to "the wind that changes with the seasons and is regularly oriented, that is, the monsoon". Check the "Trade Winds" article in the Etymology to see this explanation and citations.

Therefore, the word trade wind can be used in general or in the context of trade wind, as in modern meteorology here. Ancient Western merchants often used the help of trade winds to carry out ** by sea, which led to trade wind sometimes translated as "**wind", but this is not true. The word trade does not mean ** in modern English, but comes from Middle English, which is equivalent to path, track.

Therefore, the original meaning of trade wind is "the wind on the normal track".

Trade winds are winds that blow at low altitudes from the subtropical high pressure band to the equatorial low pressure zone. Due to the deflection force of the earth, the northern hemisphere becomes the northeast wind, which is called the northeast trade wind, and the southern hemisphere becomes the southeast wind, which is called the southeast trade wind. They do this year after year, they appear steadily, and they are very creditworthy, which is probably why they are called trade winds.

It is because of this that the ancient merchants took advantage of this immutable law to help the trade winds to and from the sea to live and travel, so the trade winds are also called **winds. Trade winds are winds that blow at low altitudes from the subtropical high pressure band to the equatorial low pressure zone. Due to the deflection force of the earth, the northern hemisphere becomes the northeast wind, which is called the northeast trade wind, and the southern hemisphere becomes the southeast wind, which is called the southeast trade wind.

They do this year after year, they appear steadily, and they are very creditworthy, which is probably why they are called trade winds.

The air that sinks around 30° flows southward (equatorial) and northward (polar) in the lower layers of the Northern Hemisphere, respectively. The southerly flowing air is deflected to the right by the geostrophic deflection force and becomes the northeasterly airflow, because this wind system is very stable, called the northeast trade wind. The corresponding airflow towards the equator in the lower layers of the Southern Hemisphere becomes the southeast trade wind.

The formation of trade winds is associated with the subtropical high.

The trade winds that blow from high latitudes to low latitudes are, for example, from the subtropical high to the equatorial depression zone....Southwest winds in the northern hemisphere, southeast winds in the southern hemisphere....

Trade wind. The air movement is biased to the right of the pressure gradient force, forming a northeasterly wind, i.e., northeast.

Trade wind. The southern hemisphere, in turn, forms the southeast.

Trade wind. In the upper troposphere prevails with.

Trade wind. The wind is in the opposite direction, i.e. the opposite. Trade wind.

Trade wind. with the opposite.

Trade wind. A closed vertical circulation is formed between the equator and latitude 20 35° north and south.

Supplement and modify the view on the third floor, the northern hemisphere should be the northeast trade wind, and the southern hemisphere is the southeast trade wind! Taking the Northern Hemisphere as an example, the northerly wind blowing towards the equatorial low pressure zone is biased to the right by the influence of geostrophic deflection forces, forming the northeast wind, i.e., the northeast trade wind. The same goes for the Southern Hemisphere. Thank you.

Trade winds are directional winds that blow from the subtropical high pressure zone to the equatorial low pressure zone. The wind direction is northeasterly in the northern hemisphere and southeasterly in the southern hemisphere, commonly known as the northeast trade wind and southeast trade wind. In the near ground of the subtropical region, the sinking air flow flows to the equator and the polar sides, respectively, and the air flow towards the equator forms southeast and northeast trade winds in the northern and southern hemispheres under the action of the earth's deflection force.

The biggest feature of the trade winds is that the wind direction does not change, the wind speed changes, and the trade winds are the most consistent winds on the earth.

The northeast trade winds appear in the northern hemisphere, and the climate of the affected areas is mostly hot and dry (northern Africa and West Asia are affected by the northeast trade winds, where the trade winds blow from the inland arid areas, and the humidity is low, so there is little precipitation), but there are exceptions, such as the northeast trade winds in the narrow strip of Central America (the east coast of Mexico) come from the ocean, bringing more precipitation.

Trade winds are in the lower atmosphere on both sides of the equator, with northeasterly winds blowing in the northern hemisphere and southeast 143 winds in the southern hemisphere. The direction of these winds rarely changes, they do so year after year, they appear steadily, and they are very trustworthy. In areas affected by trade winds, some have less precipitation and some have more precipitation, which is related to factors such as the location of the sea and land and the terrain conditions.