What are the specific characteristics of convective rain, frontal rain, and topographic rain

Main types of precipitation: There are two basic conditions for the formation of precipitation: there is sufficient moisture in the air; The temperature of the air drops to the point where the water vapor can condense out.

Convective rain: Rainfall formed by the expansion and condensation of moist air when it is heated. Terrain Rain:

When moist air moves horizontally, it encounters a mountainous terrain and "climbs" along the slope, the temperature drops, the water vapor condenses, and precipitation is produced on the windward slope. Frontal rain: Similarly, when cold air meets warm air, the relatively light warm air is "lifted" and the precipitation is produced by condensation.

1. Frontal rain.

When a front is active, the precipitation caused by the rising cooling and condensation in the warm and humid air is called frontal rain. Fronts are often accompanied by cyclones, so frontal rain is also called cyclonic rain. There are systematic cloud systems on fronts, but not every type of cloud produces precipitation.

When two air currents with different properties meet, the interface between them is called a front. On the front, warm, wet, lighter air is lifted above the colder, drier, heavier air. In the process of uplifting, the water vapor in the air cools and condenses, and the precipitation formed is called frontal rain.

2. Convective rain.

Convective rain, also known as convective precipitation, is formed by precipitation from convective clouds, specifically when the convection develops to a certain extent, the precipitation particles in the clouds can no longer be supported by the updraft and fall. This type of convective precipitation is characterized by small range, high intensity, uneven distribution, short duration, and rapid change over time. Convective precipitation is a common extreme weather phenomenon in the middle and lower reaches of the Yangtze River.

3. Terrain rain.

Topographic rain is one of the four major precipitation patterns in the world. Topographic rain is the precipitation formed by the temperature of the humid airflow when it is forced to rise when it is blocked by mountains and other highlands, which has an important impact on changing the local microclimate. At the same time, due to the different effects of topographic rain on the slopes on both sides of the topographic area, people's utilization and development of them are also different, and the cultural landscape is also obviously different.

1. Frontal rain.

When warm and cold fronts meet, warm, wet, and lighter air is lifted over cold, dry, heavier air. In the process of lifting, the water vapor in the air cools and condenses near the cover, and the precipitation formed is called frontal rain.

2. Convective rain.

When the air is strongly heated, the hot and humid air expands and rises, and the water vapor in the air cools and condenses to form rainfall called convective rain. Convective rain is dominant in the equatorial region throughout the year, and convective rain in our country is mostly seen in the summer afternoon.

3. Terrain rain.

When moving forward due to the humid air, he was blocked by the mountain and was forced to climb along the slope. During the ascent, the water in the air cools and condenses to form precipitation.

Distribution characteristics: 1. Most of the convective rain occurs in the summer in the middle latitude of the low-latitude tropical region with high temperature all year round and unstable atmospheric stratification. The tropical rainforest climate located in the equatorial low pressure zone has significant air convection movement due to strong solar radiation, mainly convective rain. There are also convective rains in the afternoon to the evening in our summer.

2. Frontal rain is the main type of rainfall in China, which is mainly determined by the advance and retreat of the summer monsoon, and the rain band moves with the movement of the front. Every May, the southern coast enters the rainy season; In June, it moved to the middle and lower reaches of the Yangtze River, forming a plum rain of about a month; From July to August, the rain belt moved to North China and Northeast China, and drought occurred in the middle and lower reaches of the Yangtze River. In September, the rain band retreated southward, and the rainy season ended in October.

3. Topographic rain, such as the Great Dividing Range on the east coast of Australia, the east side is the windward slope of the southeast trade winds, and the terrain rains; The Murray-Darling Basin on the west side has a rain shadow effect, with scarce precipitation and a dry climate, which has seriously affected the production of mixed agriculture in the region. In order to solve the problem of irrigation water sources, Australia has built the "East-West Water Diversion" project.

What are the characteristics that distinguish typhoon rain from other types of rainfall (convective rain, topographic rain, frontal rain)?

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This question is like this: frontal rain is due to the intersection of cold and warm fronts, the warm front actively lifts or passively climbs, and condenses in the process of rising and cooling. Convective rain is due to strong air convection at high altitude and on the ground, and rainfall is formed during the convection and cooling of hot air on the ground,-- which is more common in the afternoon in tropical areas.

Topographic rain is caused by the moist air mass being blocked by the high mountain terrain and cooling during the climb to form rainfall, which usually occurs on windward slopes where prevailing winds. The leeward slope where the prevailing winds form a "rain shadow zone", with scarce precipitation and a dry climate. Typhoon rain is rainfall caused by typhoons, which is usually heavy and accompanied by strong winds"Stormy winds"。

Typhoon rains can last for a few hours, from a few hours to a few minutes, to several days, depending on whether the rain is coming from the near center or the edge of the typhoon. On the southeast coast, it is more often affected by typhoon winds.

The meaning of the three is surplus:

1. Convective rain: When the air is strongly heated, the moist and hot air expands and rises, and the rain formed by the cooling and condensation of water vapor in the air is called convective rain. The equatorial region is dominated by convective rain throughout the year, and the convective rain in the country is mostly seen in the afternoon of summer. Paragraph Hall.

2. Topographic rain: It is the precipitation formed by the cooling and condensation of water in the air when the humid air advances, which is blocked by the mountain and forced to climb along the hillside.

3. Frontal rain: When the cold and warm fronts meet, the warm, humid and lighter air is lifted to the cold, dry and heavier air, and in the process of lifting, the precipitation formed by the cooling and condensation of the water vapor in the air near the cover is called frontal rain.