What is the reason for the formation of tropical rain forest climate in the southeast coast of Brazil?

The tropical rain forest climate appears in the area along the southeast coast of Brazil, which should be savanna climate, and is mainly influenced by the southeast trade winds. Under the action of geostrophic deflection, southeast winds prevail in this area. The southeast is the ocean, which is at a low latitude and has a large evaporation; Trade winds (the wind direction all year round) carry warm and humid air currents from the ocean, bringing a lot of precipitation to this area. This area is located in the tropics, so it meets the requirements of high temperature and average precipitation all the year round, reaching 1500mm or more, so it is classified as a tropical rainforest climate.

The tropical rain forest climate is formed because it lies in the range of 10 degrees in the north-south dimension. Due to the strong solar radiation and the influence of equatorial low pressure belt, the climate is like summer all year round.

1. What is the reason for the formation of tropical rain forest climate?

There are many factors that affect the formation of tropical rain forest. In the range of equatorial north-south dimension 10 degree, the trend is mainly influenced by solar radiation. The equatorial low pressure area and trade winds gather near the equator, which leads to convergence and rising, making water vapor easy to form clouds and finally fall into raindrops. Climate change is monotonous, and it feels like summer all year round. It's sunny in the morning, it will be hot before noon, and it will rain after noon. After dusk, the rain will stop and the weather will get cold.

Second, the influence of tropical rain forest climate.

solar radiation

The amount of solar radiation is usually in the range of one year 100- 180 kcal/cm *, and the temperature is usually very high all year round, and the intense solar radiation will turn into desertification.

atmospheric circulation

Because in the equatorial low pressure area, the trade winds usually gather near the equator and converge to rise, and the water vapor will first become clouds, then rain, and then circulate in turn.

Sea-land influence

Tropical rainforests are usually located at the seaside or in large river basins, so the rainfall is relatively abundant and the temperature is usually relatively low. If the terrain is relatively low, it is also suitable for the growth of rainforests.

Vegetation influence

Trees have strong transpiration, which makes the environment more humid.